Commit Graph

169399 Commits

Author SHA1 Message Date
David Ellingsworth 4aebc2893e V4L/DVB (13060): radio-mr800: implement proper locking
Implement proper locking

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:07 -02:00
Antti Palosaari 0f01721256 V4L/DVB (13058): af9015: enable remote polling when eeprom contains 0x04
Looks like eeprom IR mode byte value 0x04 means there is remote
which should be polled. Patch enables polling also in case of 0x04.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:06 -02:00
Antti Palosaari e1a7ff84a4 V4L/DVB (13057): af9015: add MSI DIGIVOX mini III remote
Support for MSI DIGIVOX mini III remote.
Thanks to Aleksandr V. Piskunov <aleksandr.v.piskunov@gmail.com>
Thanks to Roman <lists@hasnoname.de>

Cc: Aleksandr V. Piskunov <aleksandr.v.piskunov@gmail.com>
Cc: Roman <lists@hasnoname.de>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:06 -02:00
Antti Palosaari 641342dde7 V4L/DVB (13056): af9015: add LeadTek Y04G0051 remote buttons
Add missing LeadTek Y04G0051 remote buttons.
Thanks to Matthew Skinner <matt@pcmus.com>

Cc: Matthew Skinner <matt@pcmus.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:06 -02:00
Antti Palosaari 0254294f37 V4L/DVB (13055): af9015: fix few typos
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:05 -02:00
Antti Palosaari 486ba12b7a V4L/DVB (13054): af9015: add USB ID for KWorld PlusTV DVB-T PCI Pro Card (DVB-T PC160-T)
Add USB ID 1b80:c161 for KWorld PlusTV DVB-T PCI Pro Card (DVB-T PC160-T).
Thanks to Andrew Cruickshank <atcrank@gmail.com> for reporting this.

Cc: Andrew Cruickshank <atcrank@gmail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:05 -02:00
S?rgio Fortier 8a378e8543 V4L/DVB (13052): DiB0700: EvolutePC TvWay+ USB ISDB-Tb fullseg device support
Patch for EvolutePC TvWay+ USB ISDB-Tb fullseg device support.

Signed-off-by: S?rgio C Fortier <sergiofortier@yahoo.com.br>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:04 -02:00
Olivier Grenie eac1fe1050 V4L/DVB (13051): DiB7000P: improve rebostness of HAS_LOCK indicator
Update the dib7000p:
The status is HAS_LOCK only if the demod is able to decode the TPS. Sometimes, there is a TPS data lock, even if the demod is not able to decode it (ex: no RF signal).
For the STK7770P: correct value for the charge pump

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:04 -02:00
Olivier Grenie f8731f4dde V4L/DVB (13049): dib8000: SNR in 10th of dB
dib7000p/dib8000: added pid filtering

dib8000: the SNR is in 10th of dB (not in dB)
dib7000p and dib8000: added the pid filtering. This feature is enabled by module option (dvb-usb module).

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:03 -02:00
Igor M. Liplianin 8171c2059c V4L/DVB (13045): Fix debug messaging for stv0900 demod.
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:03 -02:00
Mauro Carvalho Chehab 61b1e58f0e V4L/DVB (13044): dib0700: Be less verbose when an IR key is pressed
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:03 -02:00
Mauro Carvalho Chehab 4c5128b30d V4L/DVB (13043): Add support for Pixelview SBTVD IR
This IR uses NEC protocol. In order to use, dvb_usb_dib0700_ir_proto=0
should be used.

Cc: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:02 -02:00
Mauro Carvalho Chehab aa15c0a347 V4L/DVB (13042): Add NEC protocol to firmware v1.2 handler
Currently, dvb_usb_dib0700_ir_proto is supported only with firmwares
older than 1.2. Adds support for it also with the newer firmware.

This is needed in order to support PixelView SBTVD IR.

Cc: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:02 -02:00
Marek Vasut 8d64827172 V4L/DVB (13040): V4L2: Add a v4l2-subdev (soc-camera) driver for OmniVision OV9640 sensor
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:01 -02:00
Linus Torvalds 96fa2b508d Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (40 commits)
  tracing: Separate raw syscall from syscall tracer
  ring-buffer-benchmark: Add parameters to set produce/consumer priorities
  tracing, function tracer: Clean up strstrip() usage
  ring-buffer benchmark: Run producer/consumer threads at nice +19
  tracing: Remove the stale include/trace/power.h
  tracing: Only print objcopy version warning once from recordmcount
  tracing: Prevent build warning: 'ftrace_graph_buf' defined but not used
  ring-buffer: Move access to commit_page up into function used
  tracing: do not disable interrupts for trace_clock_local
  ring-buffer: Add multiple iterations between benchmark timestamps
  kprobes: Sanitize struct kretprobe_instance allocations
  tracing: Fix to use __always_unused attribute
  compiler: Introduce __always_unused
  tracing: Exit with error if a weak function is used in recordmcount.pl
  tracing: Move conditional into update_funcs() in recordmcount.pl
  tracing: Add regex for weak functions in recordmcount.pl
  tracing: Move mcount section search to front of loop in recordmcount.pl
  tracing: Fix objcopy revision check in recordmcount.pl
  tracing: Check absolute path of input file in recordmcount.pl
  tracing: Correct the check for number of arguments in recordmcount.pl
  ...
2009-12-05 09:53:36 -08:00
Linus Torvalds 7a797cdcca Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing: Fix trace_marker output
  tracing: Fix event format export
  tracing: Fix return value of tracing_stats_read()
2009-12-05 09:53:21 -08:00
Linus Torvalds bb2166c898 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq: Fix spurious irq seqfile conversion
  genirq: switch /proc/irq/*/spurious to seq_file
  irq: Do not attempt to create subdirectories if /proc/irq/<irq> failed
  irq: Remove unused debug_poll_all_shared_irqs()
  irq: Fix docbook comments
  irq: trivial: Fix typo in comment for #endif
2009-12-05 09:53:08 -08:00
Linus Torvalds 0bf7969fea Merge branch 'core-softlockup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-softlockup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  softlockup: Fix hung_task_check_count sysctl
2009-12-05 09:52:46 -08:00
Linus Torvalds 69f061e0c2 Merge branch 'core-signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  signal: Print warning message when dropping signals
  signal: Fix alternate signal stack check
2009-12-05 09:52:33 -08:00
Linus Torvalds 607781762e Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits)
  rcu: Make RCU's CPU-stall detector be default
  rcu: Add expedited grace-period support for preemptible RCU
  rcu: Enable fourth level of TREE_RCU hierarchy
  rcu: Rename "quiet" functions
  rcu: Re-arrange code to reduce #ifdef pain
  rcu: Eliminate unneeded function wrapping
  rcu: Fix grace-period-stall bug on large systems with CPU hotplug
  rcu: Eliminate __rcu_pending() false positives
  rcu: Further cleanups of use of lastcomp
  rcu: Simplify association of forced quiescent states with grace periods
  rcu: Accelerate callback processing on CPUs not detecting GP end
  rcu: Mark init-time-only rcu_bootup_announce() as __init
  rcu: Simplify association of quiescent states with grace periods
  rcu: Rename dynticks_completed to completed_fqs
  rcu: Enable synchronize_sched_expedited() fastpath
  rcu: Remove inline from forward-referenced functions
  rcu: Fix note_new_gpnum() uses of ->gpnum
  rcu: Fix synchronization for rcu_process_gp_end() uses of ->completed counter
  rcu: Prepare for synchronization fixes: clean up for non-NO_HZ handling of ->completed counter
  rcu: Cleanup: balance rcu_irq_enter()/rcu_irq_exit() calls
  ...
2009-12-05 09:52:14 -08:00
Linus Torvalds d0b093a8b5 Merge branch 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ratelimit: Make suppressed output messages more useful
  printk: Remove ratelimit.h from kernel.h
  ratelimit: Fix/allow use in atomic contexts
  ratelimit: Use per ratelimit context locking
2009-12-05 09:50:22 -08:00
Linus Torvalds 3e72b810e3 Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  mutex: Fix missing conditions to build mutex_spin_on_owner()
  mutex: Better control mutex adaptive spinning config
  locking, task_struct: Reduce size on TRACE_IRQFLAGS and 64bit
  locking: Use __[SPIN|RW]_LOCK_UNLOCKED in [spin|rw]_lock_init()
  locking: Remove unused prototype
  locking: Reduce ifdefs in kernel/spinlock.c
  locking: Make inlining decision Kconfig based
2009-12-05 09:49:59 -08:00
Linus Torvalds 9b269d4034 Merge branch 'core-ipi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-ipi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  generic-ipi: Add smp_call_function_any()
  generic-ipi: Fix misleading smp_call_function*() description
2009-12-05 09:49:46 -08:00
Linus Torvalds 7b626acb8f Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (63 commits)
  x86, Calgary IOMMU quirk: Find nearest matching Calgary while walking up the PCI tree
  x86/amd-iommu: Remove amd_iommu_pd_table
  x86/amd-iommu: Move reset_iommu_command_buffer out of locked code
  x86/amd-iommu: Cleanup DTE flushing code
  x86/amd-iommu: Introduce iommu_flush_device() function
  x86/amd-iommu: Cleanup attach/detach_device code
  x86/amd-iommu: Keep devices per domain in a list
  x86/amd-iommu: Add device bind reference counting
  x86/amd-iommu: Use dev->arch->iommu to store iommu related information
  x86/amd-iommu: Remove support for domain sharing
  x86/amd-iommu: Rearrange dma_ops related functions
  x86/amd-iommu: Move some pte allocation functions in the right section
  x86/amd-iommu: Remove iommu parameter from dma_ops_domain_alloc
  x86/amd-iommu: Use get_device_id and check_device where appropriate
  x86/amd-iommu: Move find_protection_domain to helper functions
  x86/amd-iommu: Simplify get_device_resources()
  x86/amd-iommu: Let domain_for_device handle aliases
  x86/amd-iommu: Remove iommu specific handling from dma_ops path
  x86/amd-iommu: Remove iommu parameter from __(un)map_single
  x86/amd-iommu: Make alloc_new_range aware of multiple IOMMUs
  ...
2009-12-05 09:49:07 -08:00
Linus Torvalds 1ebb275afc Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (31 commits)
  GFS2: Fix glock refcount issues
  writeback: remove unused nonblocking and congestion checks (gfs2)
  GFS2: drop rindex glock to refresh rindex list
  GFS2: Tag all metadata with jid
  GFS2: Locking order fix in gfs2_check_blk_state
  GFS2: Remove dirent_first() function
  GFS2: Display nobarrier option in /proc/mounts
  GFS2: add barrier/nobarrier mount options
  GFS2: remove division from new statfs code
  GFS2: Improve statfs and quota usability
  GFS2: Use dquot_send_warning()
  VFS: Export dquot_send_warning
  GFS2: Add set_xquota support
  GFS2: Add get_xquota support
  GFS2: Clean up gfs2_adjust_quota() and do_glock()
  GFS2: Remove constant argument from qd_get()
  GFS2: Remove constant argument from qdsb_get()
  GFS2: Add proper error reporting to quota sync via sysfs
  GFS2: Add get_xstate quota function
  GFS2: Remove obsolete code in quota.c
  ...
2009-12-05 09:47:17 -08:00
Linus Torvalds 83fdbfbfe6 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (30 commits)
  TOMOYO: Add recursive directory matching operator support.
  remove CONFIG_SECURITY_FILE_CAPABILITIES compile option
  SELinux: print denials for buggy kernel with unknown perms
  Silence the existing API for capability version compatibility check.
  LSM: Move security_path_chmod()/security_path_chown() to after mutex_lock().
  SELinux: header generation may hit infinite loop
  selinux: Fix warnings
  security: report the module name to security_module_request
  Config option to set a default LSM
  sysctl: require CAP_SYS_RAWIO to set mmap_min_addr
  tpm: autoload tpm_tis based on system PnP IDs
  tpm_tis: TPM_STS_DATA_EXPECT workaround
  define convenient securebits masks for prctl users (v2)
  tpm: fix header for modular build
  tomoyo: improve hash bucket dispersion
  tpm add default function definitions
  LSM: imbed ima calls in the security hooks
  SELinux: add .gitignore files for dynamic classes
  security: remove root_plug
  SELinux: fix locking issue introduced with c6d3aaa4e3
  ...
2009-12-05 09:44:57 -08:00
Linus Torvalds d9b2c4d0b0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (50 commits)
  pcmcia: rework the irq_req_t typedef
  pcmcia: remove deprecated handle_to_dev() macro
  pcmcia: pcmcia_request_window() doesn't need a pointer to a pointer
  pcmcia: remove unused "window_t" typedef
  pcmcia: move some window-related code to pcmcia_ioctl.c
  pcmcia: Change window_handle_t logic to unsigned long
  pcmcia: Pass struct pcmcia_socket to pcmcia_get_mem_page()
  pcmcia: Pass struct pcmcia_device to pcmcia_map_mem_page()
  pcmcia: Pass struct pcmcia_device to pcmcia_release_window()
  drivers/pcmcia: remove unnecessary kzalloc
  pcmcia: correct handling for Zoomed Video registers in topic.h
  pcmcia: fix printk formats
  pcmcia: autoload module pcmcia
  pcmcia/staging: update comedi drivers
  PCMCIA: stop duplicating pci_irq in soc_pcmcia_socket
  PCMCIA: ss: allow PCI IRQs > 255
  PCMCIA: soc_common: remove 'dev' member from soc_pcmcia_socket
  PCMCIA: soc_common: constify soc_pcmcia_socket ops member
  PCMCIA: sa1111: remove duplicated initializers
  PCMCIA: sa1111: wrap soc_pcmcia_socket to contain sa1111 specific data
  ...
2009-12-05 09:42:59 -08:00
David Daney 27d16d0871 avr32: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
David Daney 5506e68975 s390: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
CC: Heiko Carstens <heiko.carstens@de.ibm.com>
CC: linux390@de.ibm.com
CC: linux-s390@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
David Daney 4ef5651e85 MIPS: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of while(1);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
David Daney a5fc5eba4d x86: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of for(;;);.  When
allyesconfig is built with a GCC-4.5 snapshot on i686 the size of the
text segment is reduced by 3987 bytes (from 6827019 to 6823032).

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: x86@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
David Daney 38938c879e Add support for GCC-4.5's __builtin_unreachable() to compiler.h (v2)
Starting with version 4.5, GCC has a new built-in function
__builtin_unreachable() that can be used in places like the kernel's
BUG() where inline assembly is used to transfer control flow.  This
eliminated the need for an endless loop in these places.

The patch adds a new macro 'unreachable()' that will expand to either
__builtin_unreachable() or an endless loop depending on the compiler
version.

Change from v1: Simplify unreachable() for non-GCC 4.5 case.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
Steven Whitehouse 26bb7505cf GFS2: Fix glock refcount issues
This patch fixes some ref counting issues. Firstly by moving
the point at which we drop the ref count after a dlm lock
operation has completed we ensure that we never call
gfs2_glock_hold() on a lock with a zero ref count.

Secondly, by using atomic_dec_and_lock() in gfs2_glock_put()
we ensure that at no time will a glock with zero ref count
appear on the lru_list. That means that we can remove the
check for this in our shrinker (which was racy).

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 12:00:12 +00:00
Wu Fengguang c29cd9004e writeback: remove unused nonblocking and congestion checks (gfs2)
No one is calling wb_writeback and write_cache_pages with
wbc.nonblocking=1 any more. And lumpy pageout will want to do
nonblocking writeback without the congestion wait.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:59:17 +00:00
Benjamin Marzinski 9ae3c6de69 GFS2: drop rindex glock to refresh rindex list
When a gfs2 filesystem is grown, it needs to rebuild the rindex list to be able
to use the new space.  gfs2 does this when the rindex is marked not uptodate,
which happens when the rindex glock is dropped.  However, on a single node
setup, there is never any reason to drop the rindex glock, so gfs2 never
invalidates the the rindex. This patch makes gfs2 automatically drop the
rindex glock after filesystem grows, so it can refresh the rindex list.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:59:03 +00:00
Steven Whitehouse 0ab7d13fcb GFS2: Tag all metadata with jid
There are two spare field in the header common to all GFS2
metadata. One is just the right size to fit a journal id
in it, and this patch updates the journal code so that each
time a metadata block is modified, we tag it with the journal
id of the node which is performing the modification.

The reason for this is that it should make it much easier to
debug issues which arise if we can tell which node was the
last to modify a particular metadata block.

Since the field is updated before the block is written into
the journal, each journal should only contain metadata which
is tagged with its own journal id. The one exception to this
is the journal header block, which might have a different node's
id in it, if that journal was recovered by another node in the
cluster.

Thus each journal will contain a record of which nodes recovered
it, via the journal header.

The other field in the metadata header could potentially be
used to hold information about what kind of operation was
performed, but for the time being we just zero it on each
transaction so that if we use it for that in future, we'll
know that the information (where it exists) is reliable.

I did consider using the other field to hold the journal
sequence number, however since in GFS2's journaling we write
the modified data into the journal and not the original
data, this gives no information as to what action caused the
modification, so I think we can probably come up with a better
use for those 64 bits in the future.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:58:47 +00:00
Steven Whitehouse 2c77634965 GFS2: Locking order fix in gfs2_check_blk_state
In some cases we already have the rindex lock when
we enter this function.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:57:41 +00:00
Steven Whitehouse 1579343a73 GFS2: Remove dirent_first() function
This function only had one caller left, and that caller only
called it for leaf blocks, hence one branch of the "if" was
never taken. In addition the call to get_left had already
verified the metadata type, so the function can be reduced
to a single line of code in its caller.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:57:23 +00:00
Steven Whitehouse cdcfde62da GFS2: Display nobarrier option in /proc/mounts
Since the default is barriers on, this only displays the
nobarrier option when that is active.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:57:05 +00:00
Christoph Hellwig f25934c5f8 GFS2: add barrier/nobarrier mount options
Currently gfs2 issues barrier unconditionally.  There are various reasons
to disable them, be that just for testing or for stupid devices flushing
large battert backed caches.  Add a nobarrier option that matches xfs and
btrfs for this.  Also add a symmetric barrier option to turn it back on
at remount time.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:55:54 +00:00
Benjamin Marzinski c14f5735e7 GFS2: remove division from new statfs code
It's not necessary to do any 64bit division for the statfs sync code, so
remove it.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:55:32 +00:00
Benjamin Marzinski 3d3c10f2ce GFS2: Improve statfs and quota usability
GFS2 now has three new mount options, statfs_quantum, quota_quantum and
statfs_percent.  statfs_quantum and quota_quantum simply allow you to
set the tunables of the same name.  Setting setting statfs_quantum to 0
will also turn on the statfs_slow tunable.  statfs_percent accepts an
integer between 0 and 100.  Numbers between 1 and 100 will cause GFS2 to
do any early sync when the local number of blocks free changes by at
least statfs_percent from the totoal number of blocks free.  Setting
statfs_percent to 0 disables this.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:55:17 +00:00
Steven Whitehouse 2ec4650526 GFS2: Use dquot_send_warning()
This adds support to GFS2 to send quota warnings via netlink.
Also it removes a stray \r which was left over from when the
code used to print warnings on the console.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:53:28 +00:00
Steven Whitehouse 86e931a35e VFS: Export dquot_send_warning
Sending a message to userspace in a generic format to warn
of events (e.g. quota exceeded) in the quota subsystem is
a generically useful feature. This patch makes some minor
changes to the send_message function from dquot.c renaming
it quota_send_message, moving it to quota.c and exporting it
for use by filesystems which do not use the dquot code.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:53:02 +00:00
Steven Whitehouse e285c10036 GFS2: Add set_xquota support
This patch adds the ability to set GFS2 quota limit and
warning levels via the XFS quota API.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:52:43 +00:00
Steven Whitehouse 113d6b3c99 GFS2: Add get_xquota support
This adds support for viewing the current GFS2 quota settings
via the XFS quota API. The setting of quotas will be addressed
in a later patch. Fields which are not supported here are left
set to zero.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
2009-12-03 11:52:21 +00:00
Steven Whitehouse 1e72c0f7c4 GFS2: Clean up gfs2_adjust_quota() and do_glock()
Both of these functions contained confusing and in one case
duplicate code. This patch adds a new check in do_glock()
so that we report -ENOENT if we are asked to sync a quota
entry which doesn't exist. Due to the previous patch this is
now reported correctly to userspace.

Also there are a few new comments, and I hope that the code
is easier to understand now.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:51:05 +00:00
Steven Whitehouse 6a6ada81e4 GFS2: Remove constant argument from qd_get()
This function was only ever called with the "create"
argument set to true, so we can remove it.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:50:51 +00:00
Steven Whitehouse 33a82529e7 GFS2: Remove constant argument from qdsb_get()
The "create" argument to qdsb_get() was only ever set to true,
so this patch removes that argument.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:50:20 +00:00
Steven Whitehouse ea76233859 GFS2: Add proper error reporting to quota sync via sysfs
For some reason, the errors were not making it to userspace.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-12-03 11:50:03 +00:00