Commit Graph

594 Commits

Author SHA1 Message Date
Mark Fasheh 60b11392f1 ocfs2: zero tail of sparse files on truncate
Since we don't zero on extend anymore, truncate needs to be fixed up to zero
the part of a file between i_size and and end of it's cluster. Otherwise a
subsequent extend could expose bad data.

This introduced a new helper, which can be used in ocfs2_write().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:02:20 -07:00
Mark Fasheh 25baf2da14 ocfs2: Teach ocfs2_get_block() about holes
ocfs2_get_block() didn't understand sparse files, fix that. Also remove some
code that isn't really useful anymore. We can fix up
ocfs2_direct_IO_get_blocks() at the same time.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:02:16 -07:00
Mark Fasheh 5069120b72 ocfs2: remove ocfs2_prepare_write() and ocfs2_commit_write()
These are no longer used, and can't handle file systems with sparse file
allocation.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:02:12 -07:00
Mark Fasheh 9517bac6cc ocfs2: teach ocfs2_file_aio_write() about sparse files
Unfortunately, ocfs2 can no longer make use of generic_file_aio_write_nlock()
because allocating writes will require zeroing of pages adjacent to the I/O
for cluster sizes greater than page size.

Implement a custom file write here, which can order page locks for zeroing.
This also has the advantage that cluster locks can easily be ordered outside
of the page locks.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:02:08 -07:00
Mark Fasheh 89488984ac ocfs2: Turn off shared writeable mmap for local files systems with holes.
This will be turned back on once we can do allocation in ->page_mkwrite().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:02:01 -07:00
Mark Fasheh abf8b15694 ocfs2: abstract out allocation locking
Right now, file allocation for ocfs2 is done within ocfs2_extend_file(),
which is either called from ->setattr() (for an i_size change), or at the
top of ocfs2_file_aio_write().

Inodes on file systems with sparse file support will want to do their
allocation during the actual write call.

In either case the cluster locking decisions are the same. We abstract out
that code into a new function, ocfs2_lock_allocators() which will be used by
a later patch to enable writing to sparse files.

This also provides a nice cleanup of ocfs2_extend_allocation().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:01:58 -07:00
Mark Fasheh 3a0782d09c ocfs2: teach extend/truncate about sparse files
For ocfs2_truncate_file(), we eliminate the "simple" truncate case which no
longer exists since i_size is not tied to i_clusters. In
ocfs2_extend_file(), we skip the allocation / page zeroing code for file
systems which understand sparse files.

The core truncate code is changed to do a bottom up tree traversal. This
gets abstracted out into it's own function. To make things more readable,
most of the special case handling for in-inode extents from
ocfs2_do_truncate() is also removed.

Though write support for sparse files comes in a later patch, we at least
update ocfs2_prepare_inode_for_write() to skip allocation for sparse files.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:01:56 -07:00
Mark Fasheh 363041a5f7 ocfs2: temporarily remove extent map caching
The code in extent_map.c is not prepared to deal with a subtree being
rotated between lookups. This can happen when filling holes in sparse files.
Instead of a lengthy patch to update the code (which would likely lose the
benefit of caching subtree roots), we remove most of the algorithms and
implement a simple path based lookup. A less ambitious extent caching scheme
will be added in a later patch.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:01:31 -07:00
Mark Fasheh dcd0538ff4 ocfs2: sparse b-tree support
Introduce tree rotations into the b-tree code. This will allow ocfs2 to
support sparse files. Much of the added code is designed to be generic (in
the ocfs2 sense) so that it can later be re-used to implement large
extended attributes.

This patch only adds the rotation code and does minimal updates to callers
of the extent api.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 14:44:03 -07:00
Mark Fasheh 6f16bf655c ocfs2: small cleanup of ocfs2_request_delete()
There are two checks in there (one for inode newness, one for other mounted
nodes) which are unnecessary, so remove them. The DLM will allow the trylock
in either case without any messaging overhead.

Removing these makes ocfs2_request_delete() a one liner function, so just
move the trylock out one level into ocfs2_query_inode_wipe().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 14:40:55 -07:00
Tiger Yang 68e2b740c4 ocfs2: remove unused code
Remove node messaging code that becomes unused with the delete inode vote
removal.

[Removed even more cruft which I spotted during review --Mark]

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 14:40:16 -07:00
Tiger Yang 500086300e ocfs2: Remove delete inode vote
Ocfs2 currently does cluster-wide node messaging to check the open state of
an inode during delete. This patch removes that mechanism in favor of an
inode cluster lock which is taken at shared read when an inode is first read
and dropped in clear_inode(). This allows a deleting node to test the
liveness of an inode by attempting to take an exclusive lock.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 14:39:48 -07:00
Mark Fasheh a9f5f70739 ocfs2: filter more error prints
We don't want to print anything at all in ocfs2_lookup() when getting an
error from ocfs2_iget() - it could be something as innocuous as a signal
being detected in the dlm.

ocfs2_permission() should filter on -ENOENT which ocfs2_meta_lock() can
return if the inode was deleted on another node.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:39:08 -07:00
Sunil Mushran bebe6f120b ocfs2: Replace panic() with emergency_restart() when fencing
We have noticed panic() hanging leading us to a situation in which
the node, while otherwise dead, is still disk heartbeating. This
leads to a hung cluster as the other nodes are waiting for this
node to stop disk heartbeating. This situation is only resolved
by power resetting the box.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:39:02 -07:00
Sunil Mushran 5d262cc7dd ocfs2: Silence compiler warnings
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:38:55 -07:00
Mark Fasheh be9e986b82 ocfs2: Local mounts should skip inode updates
We don't want the extent map and uptodate cache destruction in
ocfs2_meta_lock_update() on a local mount, so skip that.

This fixes several bugs with uptodate being cleared on buffers and extent
maps being corrupted.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:35:21 -07:00
Sunil Mushran 0d01af6e5d ocfs2_dlm: Call cond_resched_lock() once per hash bucket scan
In dlm_migrate_all_locks(), we currently call cond_resched_lock() after
processing each lockres in a hash bucket. Move it outside the loop so as to
call it only after the entire hash bucket has been processed.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:33:11 -07:00
Srinivas Eeda 756a1501dd ocfs2_dlm: fix race in dlm_remaster_locks
There is a possibility that dlm_remaster_locks could overwride node->state
with DLM_RECO_NODE_DATA_REQUESTED after dlm_reco_data_done_handler sets the
node->state to DLM_RECO_NODE_DATA_DONE. This could lead to recovery getting
stuck and requires a cluster reboot. Synchronize with dlm_reco_state_lock
spinlock.

Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:33:02 -07:00
Sunil Mushran 2f5bf1f2d0 ocfs2_dlm: Check for migrateable lockres in dlm_empty_lockres()
In dlm_migrate_lockres(), we check upfront whether the lockres is a
candidate for migration. This patch encapsulates that code in a separate
function so that dlm_empty_lockres() can also use it during umount. This
patch addresses the umount process spinning problem.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-26 16:51:15 -07:00
Sunil Mushran 78062cb2e5 ocfs2_dlm: Fix lockres ref counting bug
During umount, the umount thread migrates the lockres' and the dlm_thread
frees the empty lockres'. Due to a race, the reference counting on the
lockres goes awry leading to extra puts.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-26 16:50:52 -07:00
Sunil Mushran b36c3f8498 ocfs2_dlm: Add missing locks in dlm_empty_lockres
__dlm_lockres_unused() expects the caller to take the lockres spinlock.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14 14:37:35 -07:00
Sunil Mushran 3fca0894a4 ocfs2_dlm: Missing get/put lockres in dlm_run_purge_lockres
In some circumstances, this was causing us to reference freed memory.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14 14:37:33 -07:00
Joel Becker 03f981cf2e ocfs2: add some missing address space callbacks
Under load, OCFS2 would crash in invalidate_inode_pages2_range() because
invalidate_complete_page2() was unable to invalidate a page.  It would
appear that JBD is holding on to the page.  ext3 has a specific
->releasepage() handler to cover this case.

Steal ext3's ->releasepage(), ->invalidatepage(), and ->migratepage(), as
they appear completely appropriate for OCFS2.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14 14:37:16 -07:00
Joel Becker e6c352dbc0 ocfs2: Concurrent access of o2hb_region->hr_task was not locked
This means that a build-up and a teardown could race which would result in a
double-kthread_stop().

Protect the setting and clearing of hr_task with o2hb_live_lock, as it's not
a common thing and not performance critical.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14 14:37:12 -07:00
Joel Becker c24f72cc7c ocfs2: Proper cleanup in case of error in ocfs2_register_hb_callbacks()
If ocfs2_register_hb_callbacks() succeeds on its first callback but fails
its second, it doesn't release the first on the way out. Fix that.

While we're at it, o2hb_unregister_callback() never returns anything but
0, so let's make it void.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14 14:37:09 -07:00
Uwe Kleine-König 1b3c3714cb Fix typos concerning hierarchy
heirarchical, hierachical -> hierarchical
        heirarchy, hierachy -> hierarchy

Signed-off-by: Uwe Kleine-König <zeisberg@informatik.uni-freiburg.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-02-17 19:23:03 +01:00
Eric W. Biederman 0b4d414714 [PATCH] sysctl: remove insert_at_head from register_sysctl
The semantic effect of insert_at_head is that it would allow new registered
sysctl entries to override existing sysctl entries of the same name.  Which is
pain for caching and the proc interface never implemented.

I have done an audit and discovered that none of the current users of
register_sysctl care as (excpet for directories) they do not register
duplicate sysctl entries.

So this patch simply removes the support for overriding existing entries in
the sys_sysctl interface since no one uses it or cares and it makes future
enhancments harder.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Corey Minyard <minyard@acm.org>
Cc: Neil Brown <neilb@suse.de>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jan Kara <jack@ucw.cz>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: David Chinner <dgc@sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:59 -08:00
Eric W. Biederman 0e03036c97 [PATCH] sysctl: register the ocfs2 sysctl numbers
ocfs2 was did not have the binary number it uses under CTL_FS registered in
sysctl.h.  Register it to avoid future conflicts, and change the name of the
definition to be in line with the rest of the sysctl numbers.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:58 -08:00
Josef 'Jeff' Sipek ee9b6d61a2 [PATCH] Mark struct super_operations const
This patch is inspired by Arjan's "Patch series to mark struct
file_operations and struct inode_operations const".

Compile tested with gcc & sparse.

Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:47 -08:00
Arjan van de Ven 92e1d5be91 [PATCH] mark struct inode_operations const 2
Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:46 -08:00
Arjan van de Ven 00977a59b9 [PATCH] mark struct file_operations const 6
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:45 -08:00
Philipp Reisner b559292e06 [PATCH] ocfs2 heartbeat: clean up bio submission code
As was already pointed out Mathieu Avila on Thu, 07 Sep 2006 03:15:25 -0700
that OCFS2 is expecting bio_add_page() to add pages to BIOs in an easily
predictable manner.

That is not true, especially for devices with own merge_bvec_fn().

Therefore OCFS2's heartbeat code is very likely to fail on such devices.

Move the bio_put() call into the bio's bi_end_io() function. This makes the
whole idea of trying to predict the behaviour of bio_add_page() unnecessary.
Removed compute_max_sectors() and o2hb_compute_request_limits().

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:15:58 -08:00
Zhen Wei 925037bcba ocfs2: introduce sc->sc_send_lock to protect outbound outbound messages
When there is a lot of multithreaded I/O usage, two threads can collide
while sending out a message to the other nodes. This is due to the lack of
locking between threads while sending out the messages.

When a connected TCP send(), sendto(), or sendmsg() arrives in the Linux
kernel, it eventually comes through tcp_sendmsg(). tcp_sendmsg() protects
itself by acquiring a lock at invocation by calling lock_sock().
tcp_sendmsg() then loops over the buffers in the iovec, allocating
associated sk_buff's and cache pages for use in the actual send. As it does
so, it pushes the data out to tcp for actual transmission. However, if one
of those allocation fails (because a large number of large sends is being
processed, for example), it must wait for memory to become available. It
does so by jumping to wait_for_sndbuf or wait_for_memory, both of which
eventually cause a call to sk_stream_wait_memory(). sk_stream_wait_memory()
contains a code path that calls sk_wait_event(). Finally, sk_wait_event()
contains the call to release_sock().

The following patch adds a lock to the socket container in order to
properly serialize outbound requests.

From: Zhen Wei <zwei@novell.com>
Acked-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:15:11 -08:00
Sunil Mushran 0dd82141b2 ocfs2_dlm: Add timeout to dlm join domain
Currently the ocfs2 dlm has no timeout during dlm join domain. While this is
not a problem in normal operation, this does become an issue if, say, the
other node is refusing to let the node join the domain because of a stuck
recovery. This patch adds a 90 sec timeout.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:10:39 -08:00
Sunil Mushran e4968476a9 ocfs2_dlm: Silence some messages during join domain
These messages can easily be activated using the mlog infrastructure
and don't need to be enabled by default.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:10:14 -08:00
Srinivas Eeda 1faf289454 ocfs2_dlm: disallow a domain join if node maps mismatch
There is a small window where a joining node may not see the node(s) that
just died but are still part of the domain. To fix this, we must disallow
join requests if the joining node has a different node map.

A new field node_map is added to dlm_query_join_request to send the current
nodes nodemap along with join request. On the receiving end the nodes that
are part of the cluster verifies if this new node sees all the nodes that
are still part of the cluster. They disallow the join if the maps mismatch.

Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:09:14 -08:00
Sunil Mushran f3f854648d ocfs2_dlm: Ensure correct ordering of set/clear refmap bit on lockres
Eventhough the set refmap bit message is sent before the clear refmap
message, currently there is no guarentee that the set message will be
handled before the clear. This patch prevents the clear refmap to be
processed while the node is sending assert master messages to other
nodes. (The set refmap message is sent as a response to the assert
master request).

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:08:13 -08:00
Sunil Mushran ab81afd30b ocfs2: Binds listener to the configured ip address
This patch binds the o2net listener to the configured ip address
instead of INADDR_ANY for security. Fixes oss.oracle.com bugzilla#814.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:07:49 -08:00
Kurt Hackel 3b8118cffa ocfs2_dlm: Calling post handler function in assert master handler
This patch prevents the dlm from sending the clear refmap message
before the set refmap. We use the newly created post function handler
routine to accomplish the task.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:07:24 -08:00
Kurt Hackel d74c9803a9 ocfs2: Added post handler callable function in o2net message handler
Currently o2net allows one handler function per message type. This
patch adds the ability to call another function to be called after
the handler has returned the message to the other node.

Handlers are now given the option of returning a context (in the form of a
void **) which will be passed back into the post message handler function.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:06:56 -08:00
Kurt Hackel 74aa25856c ocfs2_dlm: Cookies in locks not being printed correctly in error messages
The dlm encodes the node number and a sequence number in the lock cookie.
It also stores the cookie in the lockres in the big endian format to avoid
swapping 8 bytes on each lock request. The bug here was that it was assuming
the cookie to be in the cpu format when decoding it for printing the error
message. This patch swaps the bytes before the print.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:06:24 -08:00
Kurt Hackel 90aaaf1c23 ocfs2_dlm: Silence a failed convert
When the lockres is in migrate or recovery state, all convert requests
are denied with the appropriate error status that is handled on the
requester node. This patch silences the erroneous error message printed
on the master node.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:05:48 -08:00
Kurt Hackel a6fa36402a ocfs2_dlm: wake up sleepers on the lockres waitqueue
The dlm was not waking up threads waiting on the lockres wait queue,
waiting for the lockres to be no longer be in the DLM_LOCK_RES_IN_PROGRESS
and the DLM_LOCK_RES_MIGRATING states.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:05:19 -08:00
Kurt Hackel 28b72d9c92 ocfs2_dlm: Dlm dispatch was stopping too early
dlm_dispatch_work was not processing the queued up tasks at
the first sign of the node leaving the domain leading to not
only incompleted tasks but also a mismatch in the dlm refcnt.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:04:27 -08:00
Kurt Hackel 50635f15b3 ocfs2_dlm: Drop inflight refmap even if no locks found on the lockres
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:03:42 -08:00
Kurt Hackel 1cd04dbe33 ocfs2_dlm: Flush dlm workqueue before starting to migrate
This is to prevent the condition in which a previously queued
up assert master asserts after we start the migration. Now
migration ensures the workqueue is flushed before proceeding
with migrating the lock to another node. This condition is
typically encountered during parallel umounts.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:03:02 -08:00
Kurt Hackel e17e75ecb8 ocfs2_dlm: Fix migrate lockres handler queue scanning
The migrate lockres handler was only searching for its lock on
migrated lockres on the expected queue. This could be problematic
as the new master could have also issued a convert request
during the migration and thus moved the lock to the convert queue.
We now search for the lock on all three queues.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <Sunil.Mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:02:40 -08:00
Kurt Hackel 71ac106243 ocfs2_dlm: Make dlmunlock() wait for migration to complete
dlmunlock() was not waiting for migration to complete before releasing locks
on locally mastered locks.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <Sunil.Mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:01:49 -08:00
Kurt Hackel ddc09c8dda ocfs2_dlm: Fixes race between migrate and dirty
dlmthread was removing lockres' from the dirty list
and resetting the dirty flag before shuffling the list.
This patch retains the dirty state flag until the lists
are shuffled.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Sunil Mushran <Sunil.Mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 12:00:57 -08:00
Adrian Bunk faf0ec9f13 [PATCH] fs/ocfs2/dlm/: make functions static
This patch makes some needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 11:53:31 -08:00
Kurt Hackel ba2bf21851 ocfs2_dlm: fix cluster-wide refcounting of lock resources
This was previously broken and migration of some locks had to be temporarily
disabled. We use a new (and backward-incompatible) set of network messages
to account for all references to a lock resources held across the cluster.
once these are all freed, the master node may then free the lock resource
memory once its local references are dropped.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-07 11:53:07 -08:00
Mark Fasheh e051fda4fd ocfs2: ocfs2_link() journal credits update
Commit 592282cf2e fixed some missing directory
c/mtime updates in part by introducing a dinode update in ocfs2_add_entry().
Unfortunately, ocfs2_link() (which didn't update the directory inode before)
is now missing a single journal credit. Fix this by doubling the number of
inode updates expected during hard link creation.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-02-01 12:03:19 -08:00
Mark Fasheh a8a75a20e9 [PATCH] ocfs2: fix thinko in ocfs2_backup_super_blkno()
Fix a bug which was introduced when I synced up ocfs2_fs.h with ocfs2-tools.
We can't do u64/u32 in kernel.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-26 14:53:27 -08:00
Mark Fasheh 50af94b14c ocfs2: Add backup superblock info to ocfs2_fs.h
This synchronizes us with recent ocfs2-tools changes.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-01-21 16:20:10 -08:00
Mark Fasheh 6a1bd4a578 ocfs2: cleanup ocfs2_iget() errors
Get rid of some error prints in the ocfs2_iget() path from
ocfs2_get_dentry(). NFSD can easily cause us to read stale inodes.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-01-21 16:19:12 -08:00
Mark Fasheh 592282cf2e ocfs2: Directory c/mtime update fixes
ocfs2 wasn't updating c/mtime on directories during dirent
creation/deletion. Fix ocfs2_unlink(), ocfs2_rename() and
__ocfs2_add_entry() by adding the proper code to update the struct inode and
push the change out to disk.

This helps rename/unlink on nfs exported file systems in particular as those
clients compare directory time values to avoid a full re-reading a directory
which hasn't changed.

ocfs2_rename() loses some superfluous error handling as a result of this
patch.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-01-21 16:18:49 -08:00
Mark Fasheh 72bce5078d ocfs2: Don't print errors when following symlinks
We shouldn't print errors returned from vfs_follow_link(). This was causing
spurious errors to show up in the logs.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-01-21 16:18:14 -08:00
Zhen Wei 92efc15241 ocfs2: export heartbeat thread pid via configfs
The patch allows the ocfs2 heartbeat thread to prioritize I/O which may
help cut down on spurious fencing. Most of this will be in the tools -
we can have a pid configfs attribute and let userspace (ocfs2_hb_ctl)
calls the ioprio_set syscall after starting heartbeat, but only cfq
scheduler supports I/O priorities now.

Signed-off-by: Zhen Wei <zwei@novell.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-28 16:40:32 -08:00
Mark Fasheh 7f4a2a97e3 ocfs2: always unmap in ocfs2_data_convert_worker()
Mmap-heavy clustered workloads were sometimes finding stale data on mmap
reads. The solution is to call unmap_mapping_range() on any down convert of
a data lock.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-28 16:38:59 -08:00
Mark Fasheh 6c2aad0567 ocfs2: ignore NULL vfsmnt in ocfs2_should_update_atime()
This can come from NFSD.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-28 16:38:32 -08:00
Mark Fasheh 564f8a3228 ocfs2: Allow direct I/O read past end of file
ocfs2_direct_IO_get_blocks() was incorrectly returning -EIO for a direct I/O
read whose start block was past the end of the file allocation tree. Fix
things so that we return a hole instead. do_direct_IO() will then notice
that the range start is past eof and return a short read.

While there, remove the unused vbo_max variable.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-28 16:38:08 -08:00
Mark Fasheh 0333394bff ocfs2: don't print error in ocfs2_permission()
Errors from generic_permission() can happen in valid cases and shouldn't be
reported.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-28 16:37:20 -08:00
Robert P. J. Day cd86128088 [PATCH] Fix numerous kcalloc() calls, convert to kzalloc()
All kcalloc() calls of the form "kcalloc(1,...)" are converted to the
equivalent kzalloc() calls, and a few kcalloc() calls with the incorrect
ordering of the first two arguments are fixed.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:52 -08:00
Mark Fasheh 7e913c5360 [PATCH] ocfs2: relative atime support
Update ocfs2_should_update_atime() to understand the MNT_RELATIME flag and
to test against mtime / ctime accordingly.

[akpm@osdl.org: cleanups]
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Valerie Henson <val_henson@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:50 -08:00
Linus Torvalds 741441ab78 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  [patch 3/3] OCFS2 Configurable timeouts - Protocol changes
  [patch 2/3] OCFS2 Configurable timeouts
  [patch 1/3] OCFS2 - Expose struct o2nm_cluster
  ocfs2: Synchronize feature incompat flags in ocfs2_fs.h
  ocfs2: update mount option documentation
  ocfs2: local mounts
2006-12-12 10:21:01 -08:00
Andrew Beekhof 828ae6afbe [patch 3/3] OCFS2 Configurable timeouts - Protocol changes
Modify the OCFS2 handshake to ensure essential timeouts are configured
identically on all nodes.

Only allow changes when there are no connected peers

Improves the logic in o2net_advance_rx() which broke now that
sizeof(struct o2net_handshake) is greater than sizeof(struct o2net_msg)

Included is the field for userspace-heartbeat timeout to avoid the need for
further protocol changes.

Uses a global spinlock to ensure the decisions to update configfs entries
are made on the correct value.  The region covered by the spinlock when
incrementing the counter is much larger as this is the more critical case.

Small cleanup contributed by Adrian Bunk <bunk@stusta.de>

Signed-off-by: Andrew Beekhof <abeekhof@suse.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-11 14:26:44 -08:00
Josef Sipek d28c91740a [PATCH] struct path: convert ocfs2
Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:48 -08:00
Jeff Mahoney b5dd80304d [patch 2/3] OCFS2 Configurable timeouts
Allow configuration of OCFS2 timeouts from userspace via configfs

Signed-off-by: Andrew Beekhof <abeekhof@suse.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-07 18:13:20 -08:00
Andrew Beekhof 296b75ed6a [patch 1/3] OCFS2 - Expose struct o2nm_cluster
Subsequent patches (namely userspace heartbeat and configurable timeouts)
require access to the o2nm_cluster struct.  This patch does the necessary
shuffling.

Signed-off-by: Andrew Beekhof <abeekhof@suse.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-07 18:13:01 -08:00
Mark Fasheh 8903901dbf ocfs2: Synchronize feature incompat flags in ocfs2_fs.h
These got a little bit out of date with ocfs2-tools, make things consistent
again. We reserve a flag for sparse allocation code as that's pretty close
to testable at this point.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-07 18:05:37 -08:00
Sunil Mushran c271c5c22b ocfs2: local mounts
This allows users to format an ocfs2 file system with a special flag,
OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT. When the file system sees this flag, it
will not use any cluster services, nor will it require a cluster
configuration, thus acting like a 'local' file system.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-07 17:37:53 -08:00
Alexey Dobriyan 4a6e617a4b [PATCH] fs/*: trivial vsnprintf() conversion
It would very lame to get buffer overflow via one of the following.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:35 -08:00
Christoph Lameter e18b890bb0 [PATCH] slab: remove kmem_cache_t
Replace all uses of kmem_cache_t with struct kmem_cache.

The patch was generated using the following script:

	#!/bin/sh
	#
	# Replace one string by another in all the kernel sources.
	#

	set -e

	for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
		quilt add $file
		sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
		mv /tmp/$$ $file
		quilt refresh
	done

The script was run like this

	sh replace kmem_cache_t "struct kmem_cache"

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:25 -08:00
Christoph Lameter e6b4f8da3a [PATCH] slab: remove SLAB_NOFS
SLAB_NOFS is an alias of GFP_NOFS.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:23 -08:00
David Howells 9db7372445 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	drivers/ata/libata-scsi.c
	include/linux/libata.h

Futher merge of Linus's head and compilation fixups.

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-05 17:01:28 +00:00
Tiger Yang d38eb8db6a ocfs2: implement i_op->permission
Implement .permission() in ocfs2_file_iops, ocfs2_special_file_iops and
ocfs2_dir_iops.

This helps us avoid some multi-node races with mode change and vfs
operations.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:29:14 -08:00
Tiger Yang 25899deef4 ocfs2: update file system paths to set atime
Conditionally update atime in ocfs2_file_aio_read(), ocfs2_readdir() and
ocfs2_mmap().

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:58 -08:00
Tiger Yang 7f1a37e31f ocfs2: core atime update functions
This patch adds the core routines for updating atime in ocfs2.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:51 -08:00
Tiger Yang 8659ac25b4 ocfs2: Add splice support
Add splice read/write support in ocfs2.

ocfs2_file_splice_read/write are very similar to ocfs2_file_aio_read/write.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:46 -08:00
Mark Fasheh e88d0c9a41 ocfs2: Remove ocfs2_write_should_remove_suid()
Use should_remove_suid() instead.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:43 -08:00
Mark Fasheh 1fabe1481f ocfs2: Remove struct ocfs2_journal_handle in favor of handle_t
This is mostly a search and replace as ocfs2_journal_handle is now no more
than a container for a handle_t pointer.

ocfs2_commit_trans() becomes very straight forward, and we remove some out
of date comments / code.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:28 -08:00
Mark Fasheh 65eff9ccf8 ocfs2: remove handle argument to ocfs2_start_trans()
All callers either pass in NULL directly, or a local variable that is
already set to NULL.

The internals of ocfs2_start_trans() get a nice cleanup as a result.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:23 -08:00
Mark Fasheh dae85832ff ocfs2: remove ocfs2_journal_handle journal field
It is no longer used.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:13 -08:00
Mark Fasheh 02dc1af44e ocfs2: pass ocfs2_super * into ocfs2_commit_trans()
This sets us up to remove handle->journal.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:08 -08:00
Mark Fasheh 4bcec1847a ocfs2: remove unused handle argument from ocfs2_meta_lock_full()
Now that this is unused and all callers pass NULL, we can safely remove it.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:05 -08:00
Mark Fasheh a301a27d71 ocfs2: make ocfs2_alloc_handle() static
This is no longer used outside of journal.c

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:28:00 -08:00
Mark Fasheh daf29e9cda ocfs2: remove unused ocfs2_handle_add_lock()
This gets us rid of a slab we no longer need, as well as removing the
majority of what's left on ocfs2_journal_handle.

ocfs2_commit_unstarted_handle() has no more real work to do, so remove that
function too.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:58 -08:00
Mark Fasheh 02928a71ae ocfs2: remove unused ocfs2_handle_add_inode()
We can also delete the unused infrastructure which was once in place to
support this functionality. ocfs2_inode_private loses ip_handle and
ip_handle_list. ocfs2_journal_handle loses handle_list.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:55 -08:00
Mark Fasheh 85b9e783cb ocfs2: Don't allocate handle early in ocfs2_rename()
It isn't used until ocfs2_start_trans() anyway.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:53 -08:00
Mark Fasheh da5cbf2f9d ocfs2: don't use handle for locking in allocation functions
Instead we record our state on the allocation context structure which all
callers already know about and lifetime correctly. This means the
reservation functions don't need a handle passed in any more, and we can
also take it off the alloc context.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:49 -08:00
Mark Fasheh 8d5596c687 ocfs2: don't pass handle to ocfs2_meta_lock in ocfs2_rename()
Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:24 -08:00
Mark Fasheh 6d8fc40e63 ocfs2: don't pass handle to ocfs2_meta_lock in ocfs2_symlink()
Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:22 -08:00
Mark Fasheh 30a4f5e86b ocfs2: don't pass handle to ocfs2_meta_lock in ocfs2_unlink()
Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:19 -08:00
Mark Fasheh 5098c27bb8 ocfs2: don't pass handle to ocfs2_meta_lock() in orphan dir code
Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:16 -08:00
Mark Fasheh 123a964340 ocfs2: don't pass handle to ocfs2_meta_lock() in ocfs2_link()
Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:14 -08:00
Mark Fasheh e3a8213859 ocfs2: don't pass handle to ocfs2_meta_lock() in ocfs2_mknod()
Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:12 -08:00
Mark Fasheh e08dc8b980 ocfs2: don't pass handle to ocfs2_meta_lock() in __ocfs2_flush_truncate_log()
Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:10 -08:00
Mark Fasheh 8898a5a58f ocfs2: don't pass handle to ocfs2_meta_lock() in localalloc.c
Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:08 -08:00
Mark Fasheh c161f89be7 ocfs2: remove ocfs2_journal_handle flags field
Callers can set h_sync directly on the handle_t, whether a transaction has
been started or not can be determined via the existence of the handle_t on
the struct ocfs2_journal_handle.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:06 -08:00
Mark Fasheh 1fc581467e ocfs2: have ocfs2_extend_trans() take handle_t
No reason to use our wrapper struct in this function, so take the handle_t
directly.

Also fixes a bug where we were incorrectly setting the handle to NULL in
case of a failure from journal_restart()

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:04 -08:00
Mark Fasheh 01ddf1e186 ocfs2: remove unused ocfs2_journal_handle field
max_buffs was just being set and not actually used.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:27:00 -08:00
Mark Fasheh f5a923d1ba ocfs2: fix format warnings in dlm_alloc_pagevec()
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:26:56 -08:00
Adrian Bunk da66116eef [2.6 patch] make ocfs2_create_new_lock() static
This patch makes the needlessly global ocfs2_create_new_lock() static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-01 18:26:50 -08:00
David Howells c4028958b6 WorkStruct: make allyesconfig
Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
Mark Fasheh e2057c5a63 ocfs2: cond_resched() in ocfs2_zero_extend()
The loop within ocfs2_zero_extend() can execute for a long time, causing
spurious soft lockup warnings.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-10-20 15:27:48 -07:00
Mark Fasheh 0effef776f ocfs2: fix page zeroing during simple extends
The page zeroing code was missing the region between old i_size and new
i_size for those extends that didn't actually require a change in space
allocation.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-10-20 15:27:26 -07:00
Sunil Mushran 711a40fcaa ocfs2: remove spurious d_count check in ocfs2_rename()
This was causing some folks to incorrectly get -EBUSY during rename.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-10-20 15:26:35 -07:00
Akinobu Mita 79cd22d3ac ocfs2: delete redundant memcmp()
This patch deletes redundant memcmp() while looking up in rb tree.

Signed-off-by: Akinbou Mita <akinobu.mita@gmail.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-10-20 15:26:06 -07:00
Alexey Dobriyan 2ecd05ae68 [PATCH] fs/*: use BUILD_BUG_ON
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-11 11:14:23 -07:00
Mark Fasheh 17ff785691 [PATCH] r/o bind mounts: clean up OCFS2 nlink handling
OCFS2 does some operations on i_nlink, then reverts them if some of its
operations fail to complete.  This does not fit in well with the
drop_nlink() logic where we expect i_nlink to stay at zero once it gets
there.

So, delay all of the nlink operations until we're sure that the operations
have completed.  Also, introduce a small helper to check whether an inode
has proper "unlinkable" i_nlink counts no matter whether it is a directory
or regular inode.

This patch is broken out from the others because it does contain some
logical changes.

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:30 -07:00
Dave Hansen d8c76e6f45 [PATCH] r/o bind mount prepwork: inc_nlink() helper
This is mostly included for parity with dec_nlink(), where we will have some
more hooks.  This one should stay pretty darn straightforward for now.

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:30 -07:00
Dave Hansen 9a53c3a783 [PATCH] r/o bind mounts: unlink: monitor i_nlink
When a filesystem decrements i_nlink to zero, it means that a write must be
performed in order to drop the inode from the filesystem.

We're shortly going to have keep filesystems from being remounted r/o between
the time that this i_nlink decrement and that write occurs.

So, add a little helper function to do the decrements.  We'll tie into it in a
bit to note when i_nlink hits zero.

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:30 -07:00
Badari Pulavarty 027445c372 [PATCH] Vectorize aio_read/aio_write fileop methods
This patch vectorizes aio_read() and aio_write() methods to prepare for
collapsing all aio & vectored operations into one interface - which is
aio_read()/aio_write().

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Michael Holzheu <HOLZHEU@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:28 -07:00
Theodore Ts'o ba52de123d [PATCH] inode-diet: Eliminate i_blksize from the inode structure
This eliminates the i_blksize field from struct inode.  Filesystems that want
to provide a per-inode st_blksize can do so by providing their own getattr
routine instead of using the generic_fillattr() function.

Note that some filesystems were providing pretty much random (and incorrect)
values for i_blksize.

[bunk@stusta.de: cleanup]
[akpm@osdl.org: generic_fillattr() fix]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 08:26:18 -07:00
Theodore Ts'o 8e18e2941c [PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_private
The following patches reduce the size of the VFS inode structure by 28 bytes
on a UP x86.  (It would be more on an x86_64 system).  This is a 10% reduction
in the inode size on a UP kernel that is configured in a production mode
(i.e., with no spinlock or other debugging functions enabled; if you want to
save memory taken up by in-core inodes, the first thing you should do is
disable the debugging options; they are responsible for a huge amount of bloat
in the VFS inode structure).

This patch:

The filesystem or device-specific pointer in the inode is inside a union,
which is pretty pointless given that all 30+ users of this field have been
using the void pointer.  Get rid of the union and rename it to i_private, with
a comment to explain who is allowed to use the void pointer.  This is just a
cleanup, but it allows us to reuse the union 'u' for something something where
the union will actually be used.

[judith@osdl.org: powerpc build fix]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Judith Lebzelter <judith@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 08:26:17 -07:00
Alexey Dobriyan 1a1d92c10d [PATCH] Really ignore kmem_cache_destroy return value
* Rougly half of callers already do it by not checking return value
* Code in drivers/acpi/osl.c does the following to be sure:

	(void)kmem_cache_destroy(cache);

* Those who check it printk something, however, slab_error already printed
  the name of failed cache.
* XFS BUGs on failed kmem_cache_destroy which is not the decision
  low-level filesystem driver should make. Converted to ignore.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 08:26:10 -07:00
Mark Fasheh 0d5dc6c2dd ocfs2: Teach ocfs2_drop_lock() to use ->set_lvb() callback
With this, we don't need to pass an additional struct with function pointer.

Now that the callbacks are fully used, comment the remaining API.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:48 -07:00
Mark Fasheh b5e500e23e ocfs2: Remove ->unblock lockres operation
Have ocfs2_process_blocked_lock() call ocfs2_generic_unblock_lock(), which
gets to be ocfs2_unblock_lock() now that it's the only possible unblock
function.

Remove the ->unblock() callback from the structure, and all lock type
specific unblock functions.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:48 -07:00
Mark Fasheh cc567d89b3 ocfs2: move downconvert worker to lockres ops
This way lock types don't have to manually pass it to
ocfs2_generic_unblock_lock().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:48 -07:00
Mark Fasheh 08280f11de ocfs2: Remove unused dlmglue functions
The meta data unblocking code no longer needs ocfs2_do_unblock_meta() or
ocfs2_can_downconvert_meta_lock(), so remove them.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:48 -07:00
Mark Fasheh 810d5aeba1 ocfs2: Have the metadata lock use generic dlmglue functions
Fill in the ->check_downconvert and ->set_lvb callbacks with meta data
specific operations and switch ocfs2_unblock_meta() to call
ocfs2_generic_unblock_lock()

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:47 -07:00
Mark Fasheh 5ef0d4ea08 ocfs2: Add ->set_lvb callback in dlmglue
This allows a lock type to set the value block before downconvert.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:47 -07:00
Mark Fasheh 16d5b9567a ocfs2: Add ->check_downconvert callback in dlmglue
This will allow lock types to force a requeue of a lock downconvert.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:47 -07:00
Mark Fasheh f7fbfdd1fc ocfs2: Check for refreshing locks in generic unblock function
Tidy up the exit path a bit too.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:47 -07:00
Mark Fasheh b80fc012e0 ocfs2: don't unconditionally pass LVB flags
Allow a lock type to specifiy whether it makes use of the LVB. The only type
which does this right now is the meta data lock. This should save us some
space on network messages since they won't have to needlessly transmit value
blocks.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:47 -07:00
Mark Fasheh aa2623ad80 ocfs2: combine inode and generic blocking AST functions
There is extremely little difference between the two now. We can remove the
callback from ocfs2_lock_res_ops as well.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:46 -07:00
Mark Fasheh 54a7e7552e ocfs2: Add ->get_osb() dlmglue locking operation
Will be used to find the ocfs2_super structure from a given lockres.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:46 -07:00
Mark Fasheh 2a45f2d13e ocfs2: remove ->unlock_ast() callback from ocfs2_lock_res_ops
This was always defined to the same function in all locks, so clean things
up by removing and passing ocfs2_unlock_ast() directly to the DLM.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:46 -07:00
Mark Fasheh e92d57df27 ocfs2: combine inode and generic AST functions
There is extremely little difference between the two now. We can remove the
callback from ocfs2_lock_res_ops as well.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:46 -07:00
Mark Fasheh f625c9793b ocfs2: Clean up lock resource refresh flags
Use of the refresh mechanism is lock-type wide, so move knowledge of that to
the ocfs2_lock_res_ops structure.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:46 -07:00
Mark Fasheh 24c19ef404 ocfs2: Remove i_generation from inode lock names
OCFS2 puts inode meta data in the "lock value block" provided by the DLM.
Typically, i_generation is encoded in the lock name so that a deleted inode
on and a new one in the same block don't share the same lvb.

Unfortunately, that scheme means that the read in ocfs2_read_locked_inode()
is potentially thrown away as soon as the meta data lock is taken - we
cannot encode the lock name without first knowing i_generation, which
requires a disk read.

This patch encodes i_generation in the inode meta data lvb, and removes the
value from the inode meta data lock name. This way, the read can be covered
by a lock, and at the same time we can distinguish between an up to date and
a stale LVB.

This will help cold-cache stat(2) performance in particular.

Since this patch changes the protocol version, we take the opportunity to do
a minor re-organization of two of the LVB fields.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:46 -07:00
Mark Fasheh f9e2d82e63 ocfs2: Encode i_generation in the meta data lvb
When i_generation is removed from the lockname, this will help us determine
whether a meta data lvb has information that is in sync with the local
struct inode.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:45 -07:00
Mark Fasheh 4d3b83f736 ocfs2: Free up some space in the lvb
lvb_version doesn't need to be a whole 32 bits. Make it an 8 bit field to
free up some space. This should be backwards compatible until we use one of
the fields, in which case we'd bump the lvb version anyway.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:45 -07:00
Mark Fasheh 0027dd5bc2 ocfs2: Remove special casing for inode creation in ocfs2_dentry_attach_lock()
We can't use LKM_LOCAL for new dentry locks because an unlink and subsequent
re-create of a name/inode pair may result in the lock still being mastered
somewhere in the cluster.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:45 -07:00
Mark Fasheh 1ba9da2ffa ocfs2: manually d_move() during ocfs2_rename()
Make use of FS_RENAME_DOES_D_MOVE to avoid a race condition that can occur
during ->rename() if we d_move() outside of the parent directory cluster
locks, and another node discovers the new name (created during the rename)
and unlinks it. d_move() will unconditionally rehash a dentry - which will
leave stale data in the system.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:45 -07:00
Mark Fasheh 1390334b4c ocfs2: Remove the dentry vote
This is unused now.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:43 -07:00
Mark Fasheh 379dfe9d0d ocfs2: Hook rest of the file system into dentry locking API
Actually replace the vote calls with the new dentry operations. Make any
necessary adjustments to get the scheme to work.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:43 -07:00
Mark Fasheh 80c05846f6 ocfs2: Add dentry tracking API
Replace the dentry vote mechanism with a cluster lock which covers a set
of dentries. This allows us to force d_delete() only on nodes which actually
care about an unlink.

Every node that does a ->lookup() gets a read only lock on the dentry, until
an unlink during which the unlinking node, will request an exclusive lock,
forcing the other nodes who care about that dentry to d_delete() it. The
effect is that we retain a very lightweight ->d_revalidate(), and at the
same time get to make large improvements to the average case performance of
the ocfs2 unlink and rename operations.

This patch adds the higher level API and the dentry manipulation code.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:43 -07:00
Mark Fasheh d680efe9d8 ocfs2: Add new cluster lock type
Replace the dentry vote mechanism with a cluster lock which covers a set
of dentries. This allows us to force d_delete() only on nodes which actually
care about an unlink.

Every node that does a ->lookup() gets a read only lock on the dentry, until
an unlink during which the unlinking node, will request an exclusive lock,
forcing the other nodes who care about that dentry to d_delete() it. The
effect is that we retain a very lightweight ->d_revalidate(), and at the
same time get to make large improvements to the average case performance of
the ocfs2 unlink and rename operations.

This patch adds the cluster lock type which OCFS2 can attach to
dentries.  A small number of fs/ocfs2/dcache.c functions are stubbed
out so that this change can compile.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:42 -07:00
Mark Fasheh f0681062b8 ocfs2: Update dlmglue for new dlmlock() API
File system lock names are very regular right now, so we really only need to
pass an extra parameter to dlmlock().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:42 -07:00
Mark Fasheh ea5b3a187e ocfs2: Update dlmfs for new dlmlock() API
We just need to add a namelen field to the user_lock_res structure, and
update a few debug prints. Instead of updating all debug prints, I took the
opportunity to remove a few that are likely unnecessary these days.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:42 -07:00
Mark Fasheh 3384f3df5e ocfs2: Allow binary names in the DLM
The OCFS2 DLM uses strlen() to determine lock name length, which excludes
the possibility of putting binary values in the name string. Fix this by
requiring that string length be passed in as a parameter.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:42 -07:00
Mark Fasheh e2c73698af ocfs2: Silence dlm error print
An AST can be delivered via the network after a lock has been removed, so no
need to print an error when we see that.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:41 -07:00
Mark Fasheh eb35746ca5 ocfs2: Remove overzealous BUG_ON()
The truncate code was never supposed to BUG() on an allocator it doesn't
know about, but rather to ignore it. Right now, this does nothing, but when
we change our allocation paths to use all suballocator files, this will
allow current versions of the fs module to work fine.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20 16:00:54 -07:00
Mark Fasheh f12033d206 ocfs2: Don't print on unknown remote blocking call
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20 16:00:36 -07:00
Mark Fasheh aa9588741d ocfs2: implement directory read-ahead
Uptodate.c now knows about read-ahead buffers. Use some more aggressive
logic in ocfs2_readdir().

The two functions which currently use directory read-ahead are
ocfs2_find_entry() and ocfs2_readdir().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20 15:53:40 -07:00
Mark Fasheh e0b4096d34 ocfs2: properly update i_mtime on buffered write
We weren't always updating i_mtime on writes, so fix ocfs2_commit_write() to
handle this.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Acked-by: Zach Brown <zach.brown@oracle.com>
2006-09-20 15:53:05 -07:00
Tiger Yang 0f62de2c9c ocfs2: Fix directory link count checks in ocfs2_link()
Remove the redundant "i_nlink >= OCFS2_LINK_MAX" check and adds an unlinked
directory check in ocfs2_link().

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20 15:52:27 -07:00
Mark Fasheh a663e30513 ocfs2: move nlink check in ocfs2_mknod()
The dir nlink check in ocfs2_mknod() was being done outside of the cluster
lock, which means we could have been checking against a stale version of the
inode. Fix this by doing the check after the cluster lock instead.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20 15:52:08 -07:00
Mathieu Avila 471e3f5728 ocfs2: Fix heartbeat sector calculation
This fixes things for devices which set max_sectors to 8.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20 15:50:53 -07:00
Adrian Bunk 2d5625181f [PATCH] fs/ocfs2/ioctl.c should #include "ioctl.h"
Every file should #include the headers containing the prototypes for its
global functions.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20 15:49:33 -07:00
Herbert Poetzl ca4d147e62 ocfs2: add ext2 attributes
Support immutable, and other attributes.

Some renaming and other minor fixes done by myself.

Signed-off-by: Herbert Poetzl <herbert@13thfloor.at>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20 15:48:39 -07:00
Mark Fasheh 883d4cae4a ocfs2: allocation hints
Record the most recently used allocation group on the allocation context, so
that subsequent allocations can attempt to optimize for contiguousness.
Local alloc especially should benefit from this as the current chain search
tends to let it spew across the disk.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-08-07 11:07:01 -07:00
Mark Fasheh 7bf72edee6 ocfs2: better group descriptor consistency checks
Try to catch corrupted group descriptors with some stronger checks placed in
a couple of strategic locations. Detect a failed resizefs and refuse to
allocate past what bitmap i_clusters allows.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-08-07 11:04:38 -07:00
Mark Fasheh 101ebf256d ocfs2: limit cluster bitmap information saved at mount
We were storing cluster count on the ocfs2_super structure, but never
actually using it so remove that. Also, we don't want to populate the
uptodate cache with the unlocked block read - it is technically safe as is,
but we should change it for correctness.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-08-07 11:04:07 -07:00
Adrian Bunk 9acd72f424 [PATCH] fs/ocfs2/dlm/dlmmaster.c: unexport dlm_migrate_lockres
This patch removes the unused EXPORT_SYMBOL_GPL(dlm_migrate_lockres).

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-08-07 10:55:50 -07:00
Kurt Hackel 34e3d18037 ocfs2: fix check for locally granted state during dlmunlock()
If a process requests a lock cancel but the lock has been remotely granted
already then there is no need to send the cancel message.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-08-07 10:55:22 -07:00
Kurt Hackel a23eac99d4 ocfs2: do not modify lksb->status in the unlock ast
This can race with other ast notification, which can cause bad status values
to propagate into the unlock ast.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-08-07 10:54:59 -07:00
Kurt Hackel 4b1af77445 ocfs2: Fix lvb corruption
Properly ignore LVB flags during a PR downconvert. This avoids an illegal
lvb update.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-08-07 10:54:10 -07:00
Florin Malita 184d7d20d3 ocfs2: remove redundant NULL checks in ocfs2_direct_IO_get_blocks()
Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 16:13:35 -07:00
Mark Fasheh 784270435b ocfs2: clean up some osb fields
Get rid of osb->uuid, osb->proc_sub_dir, and osb->osb_id. Those fields were
unused, or could easily be removed. As a result, we also no longer need
MAX_OSB_ID or ocfs2_globals_lock.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 16:10:13 -07:00
Mark Fasheh a75a6e4c3a ocfs2: fix init of uuid_net_key
ocfs2_initialize_super() should be copying from the beginning of the uuid.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 16:06:43 -07:00
Mark Fasheh e7607ab3da ocfs2: silence a debug print
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 16:03:17 -07:00
Sunil Mushran d426721cf1 ocfs2: silence ENOENT during lookup of broken links
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 15:59:52 -07:00
Sunil Mushran 781ee3e2b1 ocfs2: Cleanup message prints
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 15:56:26 -07:00
Joel Becker a43db30c7c ocfs2: silence -EEXIST from ocfs2_extent_map_insert/lookup
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 15:52:56 -07:00
Adrian Bunk 8169cae5a1 [PATCH] fs/ocfs2/dlm/dlmrecovery.c: make dlm_lockres_master_requery() static
dlm_lockres_master_requery() became global without any external usage.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 15:49:29 -07:00
Mark Fasheh 0db638f44e ocfs2: warn the user on a dead timeout mismatch
Print a warning to the user when a node with a different dead count joins
the region.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 15:45:35 -07:00
Joel Becker 2b388c6790 ocfs2: Compile-time disabling of ocfs2 debugging output.
Give gcc the chance to compile out the debug logging code in ocfs2.
This saves some size at the expense of being able to debug the code.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29 14:48:30 -07:00
Christoph Hellwig f5e54d6e53 [PATCH] mark address_space_operations const
Same as with already do with the file operations: keep them in .rodata and
prevents people from doing runtime patching.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Steven French <sfrench@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28 14:59:04 -07:00
Jesper Juhl 4ad98457aa [PATCH] Remove redundant NULL checks before [kv]free - in fs/
Remove redundant NULL checks before kfree for fs/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:48 -07:00
Ingo Molnar 34af946a22 [PATCH] spin/rwlock init cleanups
locking init cleanups:

 - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK()
 - convert rwlocks in a similar manner

this patch was generated automatically.

Motivation:

 - cleanliness
 - lockdep needs control of lock initialization, which the open-coded
   variants do not give
 - it's also useful for -rt and for lock debugging in general

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:39 -07:00
Adrian Bunk 3fb5a9891d [PATCH] fs/ocfs2/dlm/: cleanups
This patch #if 0's the no longer used dlm_dump_lock_resources().

Since this makes dlmdebug.h empty, this patch also removes this header.

Additionally, the needlessly global dlm_is_node_recovered() is made
static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:21 -07:00
Mark Fasheh 43dee336c9 ocfs2: fix compiler warnings in dlm_convert_lock_handler()
We need to cast to unsigned long long.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:20 -07:00
Mark Fasheh 8a9343fa24 ocfs2: dlm_print_one_mle() needs to be defined
Fixes compile breakage.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:19 -07:00
Kurt Hackel 0032abd674 ocfs2: remove whitespace in dlmunlock.c
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:19 -07:00
Kurt Hackel 3156d26701 ocfs2: move dlm work to a private work queue
The work that is done can block for long periods of time and so is not
appropriate for keventd.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:18 -07:00
Kurt Hackel 495ac96e63 ocfs2: fix incorrect error returns
Use DLM_REJECTED instead of DLM_RECOVERING.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:17 -07:00
Kurt Hackel 3b3b84a892 ocfs2: tune down some noisy messages during dlm recovery
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:16 -07:00
Kurt Hackel 56a7c104bc ocfs2: display message before waiting for recovery to complete
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:15 -07:00
Kurt Hackel 44a7f1d063 ocfs2: mlog in dlm_convert_lock_handler() should be ML_ERROR
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:15 -07:00
Kurt Hackel b220532a71 ocfs2: retry operations when a lock is marked in recovery
Before checking for a nonexistent lock, make sure the lockres is not marked
RECOVERING. The caller will just retry and the state should be fixed up when
recovery completes.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:14 -07:00
Kurt Hackel f85cd47a58 ocfs2: use cond_resched() in dlm_thread()
yield() does not yield.  cond_resched() does.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:13 -07:00
Kurt Hackel ad8100e0d2 ocfs2: use GFP_NOFS in some dlm operations
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:12 -07:00
Kurt Hackel b7084ab538 ocfs2: wait for recovery when starting lock mastery
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:12 -07:00
Kurt Hackel c27069e6cf ocfs2: continue recovery when a dead node is encountered
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:11 -07:00
Kurt Hackel 67a187412b ocfs2: remove unneccesary spin_unlock() in dlm_remaster_locks()
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:10 -07:00
Kurt Hackel 6a41321121 ocfs2: dlm_remaster_locks() should never exit without completing
We cannot restart recovery. Once we begin to recover a node, keep the state
of the recovery intact and follow through, regardless of any other node
deaths that may occur.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:09 -07:00
Kurt Hackel c8df412e1c ocfs2: special case recovery lock in dlmlock_remote()
If the previous master of the recovery lock dies, let calc_usage take it
down completely and let the caller completely redo the dlmlock() call.
Otherwise, there will never be an opportunity to re-master the lockres and
recovery wont be able to progress.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:08 -07:00
Kurt Hackel 36407488b1 ocfs2: pending mastery asserts and migrations should block each other
Use the existing structure for blocking migrations when ASTs are pending to
achieve the same result. If we can catch the assert before it goes on the
wire, just cancel it and let the migration continue.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:08 -07:00
Kurt Hackel c87a9ae705 ocfs2: temporarily disable automatic lock migration
Now we never change the owner of a lock resource until unmount or node
death. This will be re-enabled once some issues in the algorithm used have
been resolved.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:07 -07:00
Kurt Hackel 2abaf97e62 ocfs2: do not unconditionally purge the lockres in dlmlock_remote()
In dlmlock_remote(), do not call purge_lockres until the lock resource
actually changes. otherwise, the mastery info on the lockres will go away
underneath the caller.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:06 -07:00
Kurt Hackel aa087b8497 ocfs2: increase backoff before waiting for recovery
When mastering non-recovery lock resources, additional time was frequently
needed to allow the disk heartbeat to catch up with the network timeout. the
recovery lock resource is time critical and avoids this path.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:05 -07:00
Kurt Hackel f42a100b22 ocfs2: have dlm_pre_master_reco_lockres() ignore dead nodes
Recovery will spin in dlm_pre_master_reco_lockres if we do not ignore
timed-out network responses from dead nodes.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:05 -07:00
Kurt Hackel 6ff06a9391 ocfs2: give the dlm dirty list a reference on the lockres
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:04 -07:00
Kurt Hackel e7e69eb389 ocfs2: teach dlm_restart_lock_mastery() to wait on recovery
Change behavior of dlm_restart_lock_mastery() when a node goes down.  Dump
all responses that have been collected and start over.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:03 -07:00
Kurt Hackel e4eb03681a ocfs2: gracefully handle stale create_lock messages.
This is an error on the sending side, so gracefully error out on the
receiving end.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:02 -07:00
Kurt Hackel ccd8b1f916 ocfs2: update lvb immediately during recovery
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:02 -07:00
Kurt Hackel 588e00902b ocfs2: do not send master requests to localhost
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:01 -07:00
Kurt Hackel 8b2198097a ocfs2: purge lockres' sooner
Immediately purge a lockress that the local node is not the master of.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:43:00 -07:00
Kurt Hackel 343e26a400 ocfs2: dump mismatching migrated lvbs before BUG()
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:59 -07:00
Kurt Hackel 466d1a4591 ocfs2: make dlm recovery finalization 2 stage
Makes it easier for the recovery process to deal with node death.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:58 -07:00
Kurt Hackel 69d72b066c ocfs2: dlm recovery / lockres reference count fix
Take a reference on lockres structures while they are on the recovery list.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:58 -07:00
Kurt Hackel a9ee4c8a67 ocfs2: better error handling during assert master message
handle errors during lock assert master by either killing self or other node

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:57 -07:00
Kurt Hackel a7f90d83ea ocfs2: dump lockres info before we BUG() on a bad reference
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:56 -07:00
Mark Fasheh c0a8520c73 ocfs2: do LVB puts in place
Don't wait until the AST will be fired to do the LVB copy into the lock
resource.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:55 -07:00
Kurt Hackel aa85235427 ocfs2: mle ref count debugging
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:55 -07:00
Kurt Hackel dc2ed195dd ocfs2: allow for an assert message during lock mastery
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:54 -07:00
Kurt Hackel 2d1a868c56 ocfs2: take mle reference during migration
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:53 -07:00
Kurt Hackel 41b8c8a101 ocfs2: properly initialize the mle structure
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:52 -07:00
Kurt Hackel da01ad0552 ocfs2: detach mle from heartbeat events
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:52 -07:00
Kurt Hackel a2bf04774b ocfs2: mle ref counting fixes
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:51 -07:00
Kurt Hackel 958837197e ocfs2: better mle debugging
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:50 -07:00
Kurt Hackel d6dea6e973 ocfs2: clean up recovery related messages
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:49 -07:00
Kurt Hackel 29c0fa0f56 ocfs2: handle network errors during recovery
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:49 -07:00
Kurt Hackel c3187ce5e3 ocfs2: only recover one dead node at a time
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:48 -07:00
Kurt Hackel ab27eb6f47 ocfs2: Better tracking for recovery state changes
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:47 -07:00
Kurt Hackel 8bc674cb48 ocfs2: Fix empty lvb check
The check for an empty lvb should check the entire buffer not just the first
byte.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:46 -07:00
Kurt Hackel aba9aac788 ocfs2: fix inverted logic in dlm_is_node_dead
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:45 -07:00
Kurt Hackel 2580a580e0 ocfs2: recheck lockres master before sending an unlock request.
Recovery may have happened and it may now be mastered locally.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:45 -07:00
Kurt Hackel 8d79d088e8 ocfs2: add a small delay after a failed migration
Otherwise we risk starving other threads.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:44 -07:00
Mark Fasheh 685f1adb38 ocfs2: silence a compile warning in dlm_alloc_pagevec()
Reported by Andrew Morton.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:43 -07:00
Joel Becker c8f33b6e86 [PATCH] ocfs2: Alloc at least a page for the DLM hash
The OCFS2 DLM allocates a number of pages for a hash to lookup locks.
There was a bug where a PAGE_SIZE bigger than the hash size (eg, 64K
pages) would result in zero pages allocated.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:42 -07:00
Daniel Phillips 03d864c02c ocfs2: allocate lockres hash pages in an array
This allows us to have a hash table greater than a single page which greatly
improves dlm performance on some tests.

Signed-off-by: Daniel Phillips <phillips@google.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:42 -07:00
Mark Fasheh 95c4f581d6 ocfs2: inline dlm_lockres_get()
It's called on every lookup so this might help performance a bit.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:41 -07:00
Daniel Phillips 4198985f7a [PATCH] Clean up ocfs2 hash probe and make it faster
Signed-Off-By: Daniel Phillips <phillips@google.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:40 -07:00
Mark Fasheh a3d3329159 ocfs2: calculate lockid hash values outside of the spinlock
Fixes a performance bug - pointed out by Andrew.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:39 -07:00
Mark Fasheh 65c491d833 ocfs2: move lockres qstr next to hlist_node structure
Gains us a bit of performance on loads which heavily hit the lockres hash.
Patch suggested by Daniel Phillips <phillips@google.com>.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-26 14:42:39 -07:00
Akinobu Mita f116629d03 [PATCH] fs: use list_move()
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under fs/.

Cc: Ian Kent <raven@themaw.net>
Acked-by: Joel Becker <joel.becker@oracle.com>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Hans Reiser <reiserfs-dev@namesys.com>
Cc: Urban Widmark <urban@teststation.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 09:58:18 -07:00
Pekka Enberg 090d2b185d [PATCH] read_mapping_page for address space
Add read_mapping_page() which is used for callers that pass
mapping->a_ops->readpage as the filler for read_cache_page.  This removes
some duplication from filesystem code.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:43:02 -07:00
David Howells 726c334223 [PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
Give the statfs superblock operation a dentry pointer rather than a superblock
pointer.

This complements the get_sb() patch.  That reduced the significance of
sb->s_root, allowing NFS to place a fake root there.  However, NFS does
require a dentry to use as a target for the statfs operation.  This permits
the root in the vfsmount to be used instead.

linux/mount.h has been added where necessary to make allyesconfig build
successfully.

Interest has also been expressed for use with the FUSE and XFS filesystems.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Nathan Scott <nathans@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:42:45 -07:00
David Howells 454e2398be [PATCH] VFS: Permit filesystem to override root dentry on mount
Extend the get_sb() filesystem operation to take an extra argument that
permits the VFS to pass in the target vfsmount that defines the mountpoint.

The filesystem is then required to manually set the superblock and root dentry
pointers.  For most filesystems, this should be done with simple_set_mnt()
which will set the superblock pointer and then set the root dentry to the
superblock's s_root (as per the old default behaviour).

The get_sb() op now returns an integer as there's now no need to return the
superblock pointer.

This patch permits a superblock to be implicitly shared amongst several mount
points, such as can be done with NFS to avoid potential inode aliasing.  In
such a case, simple_set_mnt() would not be called, and instead the mnt_root
and mnt_sb would be set directly.

The patch also makes the following changes:

 (*) the get_sb_*() convenience functions in the core kernel now take a vfsmount
     pointer argument and return an integer, so most filesystems have to change
     very little.

 (*) If one of the convenience function is not used, then get_sb() should
     normally call simple_set_mnt() to instantiate the vfsmount. This will
     always return 0, and so can be tail-called from get_sb().

 (*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the
     dcache upon superblock destruction rather than shrink_dcache_anon().

     This is required because the superblock may now have multiple trees that
     aren't actually bound to s_root, but that still need to be cleaned up. The
     currently called functions assume that the whole tree is rooted at s_root,
     and that anonymous dentries are not the roots of trees which results in
     dentries being left unculled.

     However, with the way NFS superblock sharing are currently set to be
     implemented, these assumptions are violated: the root of the filesystem is
     simply a dummy dentry and inode (the real inode for '/' may well be
     inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries
     with child trees.

     [*] Anonymous until discovered from another tree.

 (*) The documentation has been adjusted, including the additional bit of
     changing ext2_* into foo_* in the documentation.

[akpm@osdl.org: convert ipath_fs, do other stuff]
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Nathan Scott <nathans@sgi.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:42:45 -07:00
Sunil Mushran afae00ab45 ocfs2: fix gfp mask in some file system paths
We were using GFP_KERNEL in a handful of places which really wanted
GFP_NOFS. Fix this.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-05-17 14:38:49 -07:00
Mark Fasheh dd4a2c2bfe ocfs2: Don't populate uptodate cache in ocfs2_force_read_journal()
This greatly reduces the amount of memory useded during recovery.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-05-17 14:38:48 -07:00
Mark Fasheh c4374f8a60 ocfs2: take meta data lock in ocfs2_file_aio_read()
Temporarily take the meta data lock in ocfs2_file_aio_read() to allow us to
update our inode fields.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-05-17 14:38:47 -07:00
Mark Fasheh 53013cba41 ocfs2: take data locks around extend
We need to take a data lock around extends to protect the pages that
ocfs2_zero_extend is going to be pulling into the page cache. Otherwise an
extend on one node might populate the page cache with data pages that have
no lock coverage.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-05-17 14:38:47 -07:00
Mark Fasheh a9e2ae3917 ocfs2: Better I/O error handling in heartbeat
Propagate errors received in o2hb_bio_end_io() back to the heartbeat thread
so it can skip re-arming the timer.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07 18:03:09 -07:00
Mark Fasheh 2cd9888590 ocfs2: test and set teardown flag early in user_dlm_destroy_lock()
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07 17:39:43 -07:00
Mark Fasheh f43e6918c0 ocfs2: Handle the DLM_CANCELGRANT case in user_unlock_ast()
Remove the code which attempted to catch it via dlmunlock() return status -
this never happens there.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07 17:37:52 -07:00
Mark Fasheh cc6eb72595 ocfs2: catch an invalid ast case in dlmfs
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07 17:36:16 -07:00
Mark Fasheh 1f7bc828e3 ocfs2: remove an overly aggressive BUG() in dlmfs
Don't BUG() user_dlm_unblock_lock() on the absence of the USER_LOCK_BLOCKED
flag - this turns out to be a valid case. Make some of the related BUG()
statements print more useful information.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07 17:27:43 -07:00
Mark Fasheh ab0920ce7e ocfs2: multi node truncate fix
Fix ocfs2_truncate_file() so that it forces a truncate_inode_pages() on all
interested nodes in all cases of a truncate(), not just allocation change.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07 16:47:24 -07:00
Arjan van de Ven 4b6f5d20b0 [PATCH] Make most file operations structs in fs/ const
This is a conversion to make the various file_operations structs in fs/
const.  Basically a regexp job, with a few manual fixups

The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 09:16:06 -08:00
Badari Pulavarty 1d8fa7a2b9 [PATCH] remove ->get_blocks() support
Now that get_block() can handle mapping multiple disk blocks, no need to have
->get_blocks().  This patch removes fs specific ->get_blocks() added for DIO
and makes it users use get_block() instead.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:57:01 -08:00
Badari Pulavarty 205f87f6b3 [PATCH] change buffer_head.b_size to size_t
Increase the size of the buffer_head b_size field (only) for 64 bit platforms.
Update some old and moldy comments in and around the structure as well.

The b_size increase allows us to perform larger mappings and allocations for
large I/O requests from userspace, which tie in with other changes allowing
the get_block_t() interface to map multiple blocks at once.

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:57:01 -08:00
Andrew Morton 5515eff811 [PATCH] 2tb-files-add-blkcnt_t-fixes
Cc: Takashi Sato <sho@tnes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:57:00 -08:00
Mark Fasheh ea8aa68d36 ocfs2: finally remove MLF* macros
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-24 14:58:29 -08:00
Mark Fasheh b0697053f9 ocfs2: don't use MLF* in the file system
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-24 14:58:28 -08:00
Kurt Hackel 29004858a7 ocfs2: don't use MLF* in dlm/ files
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-24 14:58:27 -08:00
Mark Fasheh 70bacbdbfa ocfs2: don't use MLF* in cluster/ files
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-24 14:58:26 -08:00
Kurt Hackel c03872f5f5 [PATCH] ocfs2: dlm recovery fixes
when starting lock mastery (excepting the recovery lock) wait on any nodes
needing recovery. fix one instance where lock resources were left attached
to the recovery list after recovery completed.  ensure that the node_down
code is run uniformly regardless of which node found the dead node first.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-24 14:58:25 -08:00
Kurt Hackel 9c6510a5bf [PATCH] ocfs2: fix hang in dlm lock resource mastery
fixes hangs in lock mastery related to refcounting on the mle structure

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-24 14:58:25 -08:00
Mark Fasheh a74e1f0e8a ocfs2: use __attribute__ format
Use the "format" attribute on ocfs2_error() and ocfs2_abort() so that the
compiler will warn when we get calls to those functions wrong.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-24 14:58:24 -08:00
Paul Jackson fffb60f93c [PATCH] cpuset memory spread: slab cache format
Rewrap the overly long source code lines resulting from the previous
patch's addition of the slab cache flag SLAB_MEM_SPREAD.  This patch
contains only formatting changes, and no function change.

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:23 -08:00
Paul Jackson 4b6a9316fa [PATCH] cpuset memory spread: slab cache filesystems
Mark file system inode and similar slab caches subject to SLAB_MEM_SPREAD
memory spreading.

If a slab cache is marked SLAB_MEM_SPREAD, then anytime that a task that's
in a cpuset with the 'memory_spread_slab' option enabled goes to allocate
from such a slab cache, the allocations are spread evenly over all the
memory nodes (task->mems_allowed) allowed to that task, instead of favoring
allocation on the node local to the current cpu.

The following inode and similar caches are marked SLAB_MEM_SPREAD:

    file                               cache
    ====                               =====
    fs/adfs/super.c                    adfs_inode_cache
    fs/affs/super.c                    affs_inode_cache
    fs/befs/linuxvfs.c                 befs_inode_cache
    fs/bfs/inode.c                     bfs_inode_cache
    fs/block_dev.c                     bdev_cache
    fs/cifs/cifsfs.c                   cifs_inode_cache
    fs/coda/inode.c                    coda_inode_cache
    fs/dquot.c                         dquot
    fs/efs/super.c                     efs_inode_cache
    fs/ext2/super.c                    ext2_inode_cache
    fs/ext2/xattr.c (fs/mbcache.c)     ext2_xattr
    fs/ext3/super.c                    ext3_inode_cache
    fs/ext3/xattr.c (fs/mbcache.c)     ext3_xattr
    fs/fat/cache.c                     fat_cache
    fs/fat/inode.c                     fat_inode_cache
    fs/freevxfs/vxfs_super.c           vxfs_inode
    fs/hpfs/super.c                    hpfs_inode_cache
    fs/isofs/inode.c                   isofs_inode_cache
    fs/jffs/inode-v23.c                jffs_fm
    fs/jffs2/super.c                   jffs2_i
    fs/jfs/super.c                     jfs_ip
    fs/minix/inode.c                   minix_inode_cache
    fs/ncpfs/inode.c                   ncp_inode_cache
    fs/nfs/direct.c                    nfs_direct_cache
    fs/nfs/inode.c                     nfs_inode_cache
    fs/ntfs/super.c                    ntfs_big_inode_cache_name
    fs/ntfs/super.c                    ntfs_inode_cache
    fs/ocfs2/dlm/dlmfs.c               dlmfs_inode_cache
    fs/ocfs2/super.c                   ocfs2_inode_cache
    fs/proc/inode.c                    proc_inode_cache
    fs/qnx4/inode.c                    qnx4_inode_cache
    fs/reiserfs/super.c                reiser_inode_cache
    fs/romfs/inode.c                   romfs_inode_cache
    fs/smbfs/inode.c                   smb_inode_cache
    fs/sysv/inode.c                    sysv_inode_cache
    fs/udf/super.c                     udf_inode_cache
    fs/ufs/super.c                     ufs_inode_cache
    net/socket.c                       sock_inode_cache
    net/sunrpc/rpc_pipe.c              rpc_inode_cache

The choice of which slab caches to so mark was quite simple.  I marked
those already marked SLAB_RECLAIM_ACCOUNT, except for fs/xfs, dentry_cache,
inode_cache, and buffer_head, which were marked in a previous patch.  Even
though SLAB_RECLAIM_ACCOUNT is for a different purpose, it marks the same
potentially large file system i/o related slab caches as we need for memory
spreading.

Given that the rule now becomes "wherever you would have used a
SLAB_RECLAIM_ACCOUNT slab cache flag before (usually the inode cache), use
the SLAB_MEM_SPREAD flag too", this should be easy enough to maintain.
Future file system writers will just copy one of the existing file system
slab cache setups and tend to get it right without thinking.

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:23 -08:00
Christoph Lameter ac2b898ca6 [PATCH] slab: Remove SLAB_NO_REAP option
SLAB_NO_REAP is documented as an option that will cause this slab not to be
reaped under memory pressure.  However, that is not what happens.  The only
thing that SLAB_NO_REAP controls at the moment is the reclaim of the unused
slab elements that were allocated in batch in cache_reap().  Cache_reap()
is run every few seconds independently of memory pressure.

Could we remove the whole thing?  Its only used by three slabs anyways and
I cannot find a reason for having this option.

There is an additional problem with SLAB_NO_REAP.  If set then the recovery
of objects from alien caches is switched off.  Objects not freed on the
same node where they were initially allocated will only be reused if a
certain amount of objects accumulates from one alien node (not very likely)
or if the cache is explicitly shrunk.  (Strangely __cache_shrink does not
check for SLAB_NO_REAP)

Getting rid of SLAB_NO_REAP fixes the problems with alien cache freeing.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-22 07:53:59 -08:00
Mark Fasheh 81f2094a63 [PATCH] ocfs2: use hlists for lockres hash
Switch from list_head to hlist_head. Make the size of the hash dependent
upon the allocated area, rather than a constant.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 12:18:16 -08:00
Sunil Mushran b7668c72d2 [PATCH] ocfs2: added source addr to bind() in o2net_start_connect()
to prevent confusion when a virtual ip is created on the same interface

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 12:17:04 -08:00
Joel Becker 110ba90858 ocfs2: Respond to on-disk corruption in the extent map code.
The extent map code has long noticed when the on-disk extent information
is corrupt.  However, so far it has only returned an error.  We should
take the filesystem read-only, as it is corrupt.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 11:44:50 -08:00
Joel Becker 93cc9ac455 ocfs2: Set .owner on masklog sysfs attributes.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 11:43:20 -08:00
Mark Fasheh b4df6ed8db [PATCH] ocfs2: fix orphan recovery deadlock
Orphan dir recovery can deadlock with another process in
ocfs2_delete_inode() in some corner cases. Fix this by tracking recovery
state more closely and allowing it to handle inode wipes which might
deadlock.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 11:32:41 -08:00
Jeff Mahoney 895928b838 [PATCH] ocfs2: complete failure recovery for nodemanager init
This patch finishes cleaning up the node manager allocations if it fails
 to initialize.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 11:29:30 -08:00
Mark Fasheh 362342f68e [PATCH] ocfs2: remove non existing function prototypes
Remove some prototypes from tcp.h for functions which have long been gone.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 11:19:47 -08:00
Mark Fasheh d267a56c88 [PATCH] ocfs2: remove unused code
Remove some #ifdef'd out code which was inadvertantly introduced in our
initial merge.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 11:18:22 -08:00
Mark Fasheh d3178bcdd4 [PATCH] ocfs2: remove pointless max journal size limit
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 11:16:58 -08:00
Jeff Mahoney 6b7a6c94c9 [PATCH] ocfs2: fix -Wformat warnings when building UML on x86-64
The check to determine which format string is appopriate for u64 and
 friends works in most cases, but UML on x86_64 doesn't define CONFIG_X86_64,
 so it results in screen fulls of compile-time warnings.

 This patch fixes it to handle that case.

 fs/ocfs2/cluster/masklog.h |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-03-01 11:15:49 -08:00
Kurt Hackel f671c09bce [PATCH] ocfs2: detach from heartbeat events before freeing mle
Signed-off-by: Kurt Hackel <Kurt.Hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-16 12:04:55 -08:00
Mark Fasheh 745ae8ba29 [PATCH] ocfs2: only checkpoint journal when asked to
Disable automatic checkpointing of the journal - this is a relic from older
ocfs2 days. Worth quite a bit of performance on longer running single node
tests.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-16 12:04:10 -08:00
Kurt Hackel 558c70c59b [PATCH] ocfs2: manually grant remote recovery lock
* fix a hang in recovery that occurred in dlmlock_remote.  the $RECOVERY
  lock was never moved to the granted queue even after getting DLM_NORMAL
  back from the master node.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-16 12:02:13 -08:00
Kurt Hackel 44465a7daf [PATCH] ocfs2: add dlm_wait_for_node_death
* add dlm_wait_for_node_death function to be used after receiving a network
  error.  this will wait for the given timeout to allow the heartbeat
  callbacks to update the domain map.  without this, some paths may spin
  and consume enough cpu that the heartbeat gets starved and never updates.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-16 12:01:38 -08:00
Kurt Hackel e2b5e4506f [PATCH] ocfs2: fix release of ast never reserved
* fix a bug in dlm_convert_lock_handler where dlm_lockres_release_ast was
  being called even if no ast was ever reserved

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-16 12:00:48 -08:00
Kurt Hackel 898efface1 [PATCH] ocfs2: recheck recovery state after getting lock
* after successfully taking the $RECOVERY lock in EX mode, recheck to make
  sure that recovery has not already begun or completed on another node

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-16 12:00:16 -08:00
Mark Fasheh 6eff5790d5 [PATCH] ocfs2: don't wait on recovery when locking journal
The mount path had incorrectly asked the locking code to wait for recovery
completion, which deadlocks things because recovery waits for mount to
complete first.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 14:05:14 -08:00
Mark Fasheh 215c7f9fa1 [PATCH] ocfs2: fix compile warnings
Fix a couple of compile warnings found when compiling on a ppc64 build box.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 13:55:26 -08:00
Eric Sesterhenn / snakebyte ebdec83ba4 [PATCH] BUG_ON() Conversion in fs/ocfs2/
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 13:54:22 -08:00
Adrian Bunk b4c7f53850 [PATCH] fs/ocfs2/dlm/dlmrecovery.c must #include <linux/delay.h>
fs/ocfs2/dlm/dlmrecovery.c does now use msleep(), and does therefore
need to #include <linux/delay.h> for getting the prototype of this
function.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 13:47:21 -08:00
Arjan van de Ven c74ec2f77a [PATCH] ocfs2: Semaphore to mutex conversion.
Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 13:47:21 -08:00
Kurt Hackel e2faea4ce3 [PATCH] ocfs2/dlm: fixes
* fix a hang which can occur during shutdown migration
* do not allow nodes to join during recovery
* when restarting lock mastery, do not ignore nodes which come up
* more than one node could become recovery master, fix this
* sleep to allow some time for heartbeat state to catch up to network
* extra debug info for bad recovery state problems
* make DLM_RECO_NODE_DATA_DONE a valid state for non-master recovery nodes
* prune all locks from dead nodes on $RECOVERY lock resources
* do NOT automatically add new nodes to mle nodemaps until they have properly
  joined the domain
* make sure dlm_pick_recovery_master only exits when all nodes have synced
* properly handle dlmunlock errors in dlm_pick_recovery_master
* do not propagate network errors in dlm_send_begin_reco_message
* dead nodes were not being put in the recovery map sometimes, fix this
* dlmunlock was failing to clear the unlock actions on DLM_DENIED

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 13:47:20 -08:00
Mark Fasheh 251b6eccbe [OCFS2] Make ip_io_sem a mutex
ip_io_sem is now ip_io_mutex.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 13:47:19 -08:00
Jeff Mahoney aee93ac4b7 [PATCH] ocfs2/dlm: fix compilation on ia64
Including <asm/signal.h> results in compilation failure on ia64 due to
 not including <linux/compiler.h>

 Including <linux/signal.h> corrects the problem.

 Please apply.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 13:47:18 -08:00
Adrian Bunk 0c6c98fb18 [PATCH] OCFS2: __init / __exit problem
Functions called by __init funtions mustn't be __exit.

Reported by Jan-Benedict Glaw <jbglaw@lug-owl.de>.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-02-03 13:47:18 -08:00
Randy Dunlap 16f7e0fe2e [PATCH] capable/capability.h (fs/)
fs: Use <linux/capability.h> where capable() is used.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 18:42:13 -08:00
Christoph Hellwig 870f481793 [PATCH] replace inode_update_time with file_update_time
To allow various options to work per-mount instead of per-sb we need a
struct vfsmount when updating ctime and mtime.  This preparation patch
replaces the inode_update_time routine with a file_update_atime routine so
we can easily get at the vfsmount.  (and the file makes more sense in this
context anyway).  Also get rid of the unused second argument - we always
want to update the ctime when calling this routine.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:30 -08:00
Ingo Molnar 7892f2f48d [PATCH] mutex subsystem, semaphore to mutex: VFS, sb->s_lock
This patch converts the superblock-lock semaphore to a mutex, affecting
lock_super()/unlock_super(). Tested on ext3 and XFS.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2006-01-09 15:59:25 -08:00
Jes Sorensen 1b1dcc1b57 [PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.

Modified-by: Ingo Molnar <mingo@elte.hu>

(finished the conversion)

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2006-01-09 15:59:24 -08:00
Andrew Morton a136564702 [PATCH] remove gcc-2 checks
Remove various things which were checking for gcc-1.x and gcc-2.x compilers.

From: Adrian Bunk <bunk@stusta.de>

    Some documentation updates and removes some code paths for gcc < 3.2.

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:02 -08:00
Adrian Bunk 82353b594c [PATCH] This patch contains the following cleanups:
- cluster/sys.c: make needlessly global code static
- dlm/: "extern" declarations for variables belong into header files
        (and in this case, they are already in dlmdomain.h)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-01-03 11:45:55 -08:00
Mark Fasheh ccd979bdbc [PATCH] OCFS2: The Second Oracle Cluster Filesystem
The OCFS2 file system module.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
2006-01-03 11:45:47 -08:00
Mark Fasheh 8df08c89c6 [PATCH] OCFS2: The Second Oracle Cluster Filesystem
dlmfs: A minimal dlm userspace interface implemented via a virtual
file system.
Most of the OCFS2 tools make use of this to take cluster locks when
doing operations on the file system.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
2006-01-03 11:45:47 -08:00
Kurt Hackel 6714d8e86b [PATCH] OCFS2: The Second Oracle Cluster Filesystem
A distributed lock manager built with the cluster file system use case
in mind. The OCFS2 dlm exposes a VMS style API, though things have
been simplified internally. The only lock levels implemented currently
are NLMODE, PRMODE and EXMODE.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
2006-01-03 11:45:47 -08:00
Zach Brown 98211489d4 [PATCH] OCFS2: The Second Oracle Cluster Filesystem
Node messaging via tcp. Used by the dlm and the file system for point
to point communication between nodes.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
2006-01-03 11:45:46 -08:00
Mark Fasheh a7f6a5fb4b [PATCH] OCFS2: The Second Oracle Cluster Filesystem
Disk based heartbeat. Configured and started from userspace, the
kernel component handles I/O submission and event generation via
callback mechanism.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
2006-01-03 11:45:46 -08:00
Kurt Hackel 0c83ed8eeb [PATCH] OCFS2: The Second Oracle Cluster Filesystem
A simple node information service, filled and updated from
userspace. The rest of the stack queries this service for simple node
information.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
2006-01-03 11:45:46 -08:00
Zach Brown 52fd3d6fea [PATCH] OCFS2: The Second Oracle Cluster Filesystem
Very simple printk wrapper which adds the ability to enable various
sets of debug messages at run-time.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
2006-01-03 11:45:45 -08:00