This l_wait_event_exclusive_head() will wait indefinitely
if the timeout is zero. If it does wait with a timeout
and times out, the timeout for next time is set to zero.
The can be mapped to a call to either
wait_event_idle_exclusive()
or
wait_event_idle_exclusive_timeout()
depending in the timeout setting.
The current code arranges for LIFO queuing of waiters,
but include/event.h doesn't support that yet.
Until it does, fall back on FIFO with
wait_event_idle_exclusive{,_timeout}().
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is the last remaining use of l_wait_event().
It is the only use of LWI_TIMEOUT_INTR_ALL() which
has a meaning that timeouts can be interrupted.
Only interrupts by "fatal" signals are allowed, so
introduce l_wait_event_abortable_timeout() to
support this.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
replace l_wait_event() with wait_event_idle_timeout() and explicit
loop. This approach is easier to understand.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rather an using l_wait_event(), use wait_event_idle_timeout()
with an explicit loop so it is easier to see what is happening.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace l_wait_event with wait_event_idle_timeout() and call the
handler function explicitly. This makes it more clear
what is happening.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We can replace l_wait_event() with
wait_event_idle_timeout() here providing we call the
timeout function when wait_event_idle_timeout() returns zero.
As ptlrpc_expired_set() returns 1, the l_wait_event() aborts of the
first timeout.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This use of l_wait_event() is a polling loop that re-checks
every second. Make this more obvious with a while loop
and wait_event_idle_timeout().
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When 'back_to_sleep()' is passed as the 'timeout' function,
the effect is to wait indefinitely for the event, polling
once after the timeout.
If LWI_ON_SIGNAL_NOOP is given, then after the timeout
we allow fatal signals to interrupt the wait.
Make this more obvious in both places "back_to_sleep()" is
used but using two explicit sleeps.
The code in ptlrpcd_add_req() looks odd - why not just have one
wait_event_idle()? However I believe this is a faithful
transformation of the existing code.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This waiter currently wakes up every second to re-test if
imp_flight is zero. If we ensure wakeup is called whenever
imp_flight is decremented to zero, we can just have a simple
wait_event_idle_timeout().
So add a wake_up_all to the one place it is missing, and simplify
the wait_event.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Two places that LWI_TIMEOUT_INTERVAL() is used, the outcome is a
simple polling loop that polls every second for some event (with a
limit).
So write a simple loop to make this more apparent.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If a signal-callback (lwi_on_signal) is set without lwi_allow_intr, as
is the case in ldlm_completion_ast(), the behavior depends on the
timeout set.
If a timeout is set, then signals are ignored. If the timeout is
reached, the timeout handler is called. If the timeout handler
return 0, which ldlm_expired_completion_wait() always does, the
l_wait_event() switches to exactly the behavior if no timeout was set.
If no timeout is set, then "fatal" signals are not ignored. If one
arrives the callback is run, but as the callback is empty in this
case, that is not relevant.
This can be simplified to:
if a timeout is wanted
wait_event_idle_timeout()
if that timed out, call the timeout handler
l_wait_event_abortable()
i.e. the code always waits indefinitely. Sometimes it performs a
non-abortable wait first. Sometimes it doesn't. But it only
aborts before the condition is true if it is signaled.
This doesn't quite agree with the comments and debug messages.
Now that we call the timeout handler (ldlm_expired_completion_wait())
wait directly, we can pass the two args directly rather then
using a special-purpose struct.
Reviewed-by: Patrick Farrell <paf@cray.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If l_wait_event() is given a function to be called on a signal,
but no timeout or timeout handler, then the intr function is simply
called at the end if the wait was aborted by a signal.
So a simpler way to write the code (in the one place this case is
used) it to open-code the body of the function after the
wait_event, if -ERESTARTSYS was returned.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
lustre sometimes wants to wait for an event, but abort if
one of a specific list of signals arrives. This is a little
bit like wait_event_killable(), except that the signals are
identified a different way.
So introduce l_wait_event_abortable() which provides this
functionality.
Having separate functions for separate needs is more in line
with the pattern set by include/linux/wait.h, than having a
single function which tries to include all possible needs.
Also introduce l_wait_event_abortable_exclusive().
Note that l_wait_event() return -EINTR on a signal, while
Linux wait_event functions return -ERESTARTSYS.
l_wait_event_{abortable_,}exclusive follow the Linux pattern.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When the lwi arg has a timeout, but no timeout
callback function, l_wait_event() acts much the same as
wait_event_idle_timeout() - the wait is not interruptible and
simply waits for the event or the timeouts.
The most noticable difference is that the return value is
-ETIMEDOUT or 0, rather than 0 or non-zero.
Another difference is that if the timeout is zero, l_wait_event()
will not time out at all. In the one case where that is possible
we need to conditionally use wait_event_idle().
So replace all such calls with wait_event_idle_timeout(), being
careful of the return value.
In one case, there is no event expected, only the timeout
is needed. So use schedule_timeout_uninterruptible().
Note that the presence or absence of LWI_ON_SIGNAL_NOOP
has no effect in these cases. It only has effect if the timeout
callback is non-NULL, or the timeout is zero, or
LWI_TIMEOUT_INTR_ALL() is used.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cfs_time_seconds() converts a number of seconds to the
matching number of jiffies.
The standard way to do this in Linux is "* HZ".
So discard cfs_time_seconds() and use "* HZ" instead.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When the lwi arg is full of zeros, l_wait_event() behaves almost
identically to the standard wait_event_idle() interface, so use that
instead.
l_wait_event() uses TASK_INTERRUPTIBLE, but blocks all signals.
wait_event_idle() uses the new TASK_IDLE and so avoids adding
to the load average without needing to block signals.
In one case, wait_event_idle_exclusive() is needed.
Also remove all l_wait_condition*() macros which were short-cuts
for setting lwi to {0}.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This flag is never set, so remove checks and remove
the flag.
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The new TASK_IDLE state (TASK_UNINTERRUPTIBLE | __TASK_NOLOAD)
is not much used. One way to make it easier to use is to
add wait_event*() family functions that make use of it.
This patch adds:
wait_event_idle()
wait_event_idle_timeout()
wait_event_idle_exclusive()
wait_event_idle_exclusive_timeout()
This set was chosen because lustre needs them before
it can discard its own l_wait_event() macro.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The task of ll_find_alias() is now very similar to d_exact_alias().
We cannot use that function directly, but we can copy much of
the structure so that the similarities and differences are more
obvious.
Examining d_exact_alias() shows that the d_lock spinlock does not
need to be held in ll_find_alias as much as it currently is.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that ll_find_alias is only searching for one type
of dentry, we can return as soon as we find it.
This allows substantial simplification, and brings the
bonus that we don't need to take the d_lock again just
to increment the ref-count. We can increment it immediately
that the dentry is found.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that ll_find_alias() is never called for directories,
we can remove code that only applies to directories.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In the Linux dcache a directory only ever has one dentry,
so d_splice_alias() can be used by ll_splice_alias() for directories.
It will find the one dentry whether it is DCACHE_DISCONNECTED or
IS_ROOT() or d_lustre_invalid().
Separating out the directories from non-directories will allow us
to simplify the non-directory code.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ll_dcompare is used in two slightly different contexts.
It is called (from __d_lookup, __d_lookup_rcu, and d_exact_alias)
to compare a name against a dentry that is already in the dcache.
It is also called (from d_alloc_parallel) to compare a name against
a dentry that is not in the dcache yet, but is part of an active
"lookup" or "atomic_open" call.
In the first case we need to avoid matching against "invalid" dentries
as a match implies something about ldlm locks which is not accurate.
In the second case we need to allow matching against "invalid" dentries
as the dentry will always be invalid (set by ll_d_init()) but we still
want to guard against multiple concurrent lookups of the same name.
d_alloc_parallel() will repeat the call to ll_dcompare() after
the lookup has finished, and if the dentry is still invalid, the whole
d_alloc_parallel() process is repeated. This assures us that it is safe
to report success whenever d_in_lookup().
With this patch, there will never be two threads concurrently in
ll_lookup_nd(), looking up the same name in the same directory.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 020ecc6f32 ("staging: lustre: llite: Remove IS_ERR tests")
changed ll_prep_inode to assume any error from ll_iget() meant
-ENOMEM because at that time it only returned NULL for errors.
Commit c3397e7e67 ("staging: lustre: llite: add error handler in
inode prepare phase") changed ll_iget() to once again return
meaningful codes, but nobody told ll_prep_inode().
So change ll_prep_inode() back to using PTR_ERR(*inode).
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This code tests various fields to see if they are different, except
for one where there test is if they are the same.
This is clearly wrong for a function that is tesding for equality.
So change "!strcmp()" which I always find hard to read, to
"strcmp() != 0" which obviously means that the strings are not equal.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As more people become involved with the progression of the lustre
client it needs to more clear what needs to be done to leave
staging. Update the TODO list with the various bugs and changes
to accomplish this. Some are simple bugs and others are far more
complex task that will change many lines of code. Some even cover
updating the user land utilities to meet the kernel requirements.
Several bugs have already been addressed and just need to be
pushed to the staging tree.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Return value of error codes should typically be negative.
Issue reported by checkpatch.pl
Signed-off-by: Sumit Pundir <pundirsumit11@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move a blank line from in the middle of a declaration list to
after the declaration list, to improve readability.
Issue found by checkpatch.
Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
except, again, POLLFREE and POLL_BUSY_LOOP.
With this, we finally get to the promised end result:
- POLL{IN,OUT,...} are plain integers and *not* in __poll_t, so any
stray instances of ->poll() still using those will be caught by
sparse.
- eventpoll.c and select.c warning-free wrt __poll_t
- no more kernel-side definitions of POLL... - userland ones are
visible through the entire kernel (and used pretty much only for
mangle/demangle)
- same behavior as after the first series (i.e. sparc et.al. epoll(2)
working correctly).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:
for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
done
with de-mangling cleanups yet to come.
NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do. But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.
The next patch from Al will sort out the final differences, and we
should be all done.
Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull more poll annotation updates from Al Viro:
"This is preparation to solving the problems you've mentioned in the
original poll series.
After this series, the kernel is ready for running
for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
done
as a for bulk search-and-replace.
After that, the kernel is ready to apply the patch to unify
{de,}mangle_poll(), and then get rid of kernel-side POLL... uses
entirely, and we should be all done with that stuff.
Basically, that's what you suggested wrt KPOLL..., except that we can
use EPOLL... instead - they already are arch-independent (and equal to
what is currently kernel-side POLL...).
After the preparations (in this series) switch to returning EPOLL...
from ->poll() instances is completely mechanical and kernel-side
POLL... can go away. The last step (killing kernel-side POLL... and
unifying {de,}mangle_poll() has to be done after the
search-and-replace job, since we need userland-side POLL... for
unified {de,}mangle_poll(), thus the cherry-pick at the last step.
After that we will have:
- POLL{IN,OUT,...} *not* in __poll_t, so any stray instances of
->poll() still using those will be caught by sparse.
- eventpoll.c and select.c warning-free wrt __poll_t
- no more kernel-side definitions of POLL... - userland ones are
visible through the entire kernel (and used pretty much only for
mangle/demangle)
- same behavior as after the first series (i.e. sparc et.al. epoll(2)
working correctly)"
* 'work.poll2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
annotate ep_scan_ready_list()
ep_send_events_proc(): return result via esed->res
preparation to switching ->poll() to returning EPOLL...
add EPOLLNVAL, annotate EPOLL... and event_poll->event
use linux/poll.h instead of asm/poll.h
xen: fix poll misannotation
smc: missing poll annotations
nios2: defconfig: Cleanup from old Kconfig options
nios2: dts: Remove leading 0x and 0s from bindings notation
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=gek7
-----END PGP SIGNATURE-----
Merge tag 'nios2-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2
Pull nios2 update from Ley Foon Tan:
- clean up old Kconfig options from defconfig
- remove leading 0x and 0s from bindings notation in dts files
* tag 'nios2-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
nios2: defconfig: Cleanup from old Kconfig options
nios2: dts: Remove leading 0x and 0s from bindings notation
The commit 917538e212 ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT
usage") removed KASAN_SHADOW_SCALE_SHIFT definition from
include/linux/kasan.h and added it to architecture-specific headers,
except for xtensa. This broke the xtensa build with KASAN enabled.
Define KASAN_SHADOW_SCALE_SHIFT in arch/xtensa/include/asm/kasan.h
Reported by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 917538e212 ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage")
Acked-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Remove old, dead Kconfig option INET_LRO. It is gone since
commit 7bbf3cae65 ("ipv4: Remove inet_lro library").
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
Improve the DTS files by removing all the leading "0x" and zeros to fix the
following dtc warnings:
Warning (unit_address_format): Node /XXX unit name should not have leading "0x"
and
Warning (unit_address_format): Node /XXX unit name should not have leading 0s
Converted using the following command:
find . -type f \( -iname *.dts -o -iname *.dtsi \) -exec sed -E -i -e "s/@0x([0-9a-fA-F\.]+)\s?\{/@\L\1 \{/g" -e "s/@0+([0-9a-fA-F\.]+)\s?\{/@\L\1 \{/g" {} +
For simplicity, two sed expressions were used to solve each warnings separately.
To make the regex expression more robust a few other issues were resolved,
namely setting unit-address to lower case, and adding a whitespace before the
the opening curly brace:
https://elinux.org/Device_Tree_Linux#Linux_conventions
This is a follow up to commit 4c9847b737 ("dt-bindings: Remove leading 0x from bindings notation")
Reported-by: David Daney <ddaney@caviumnetworks.com>
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=TGix
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20180210' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few fixes to round off the merge window on the block side:
- a set of bcache fixes by way of Michael Lyle, from the usual bcache
suspects.
- add a simple-to-hook-into function for bpf EIO error injection.
- fix blk-wbt that mischarectized flushes as reads. Improve the logic
so that flushes and writes are accounted as writes, and only reads
as reads. From me.
- fix requeue crash in BFQ, from Paolo"
* tag 'for-linus-20180210' of git://git.kernel.dk/linux-block:
block, bfq: add requeue-request hook
bcache: fix for data collapse after re-attaching an attached device
bcache: return attach error when no cache set exist
bcache: set writeback_rate_update_seconds in range [1, 60] seconds
bcache: fix for allocator and register thread race
bcache: set error_limit correctly
bcache: properly set task state in bch_writeback_thread()
bcache: fix high CPU occupancy during journal
bcache: add journal statistic
block: Add should_fail_bio() for bpf error injection
blk-wbt: account flush requests correctly
Mellanox fixes and new system type support.
The following is an automated git shortlog grouped by driver:
mlx-platform:
- Add support for new 200G IB and Ethernet systems
- Add support for new msn201x system type
- Add support for new msn274x system type
- Fix power cable setting for msn21xx family
- Add define for the negative bus
- Use defines for bus assignment
platform/mellanox:
- mlxreg-hotplug: Fix uninitialized variable
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJafyo5AAoJEKbMaAwKp364sxgIAIFi/sRACXrJsowOX7Okg4ID
Rx4BBpynqbOXwxGfHj2Hs5Y1Y9CG6/kCQM3MJfxJmi+Mb8IseucJGVswFmsCfq/U
IWbj7YwSfpeUOJMWGfpdUaX9RDNa8bTYT2gOx/scZXalsjLTWV1AmlZLOLwlEnK8
s26zL7GHiFjBY7BJ0GX/atbBOrAFsjuM2QodmwMEuf8lZJSDOxwg0WSqAZHKsPM3
/2WzeR/2jEX+XlSnwKUN62XsKRF79eZDbBxt+PF/FekAppHnkgLbBfHw7MvhZqg1
bg2W16nqOnNBJNRHdz6gKM8TeWyr537D/uQmHafc2oyYmhUYbGLPr65q5fqZjoE=
=VbPT
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86
Pull x86 platform driver updates from Darren Hart:
"Mellanox fixes and new system type support.
Mostly data for new system types with a correction and an
uninitialized variable fix"
[ Pulling from github because git.infradead.org currently seems to be
down for some reason, but Darren had a backup location - Linus ]
* tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86:
platform/x86: mlx-platform: Add support for new 200G IB and Ethernet systems
platform/x86: mlx-platform: Add support for new msn201x system type
platform/x86: mlx-platform: Add support for new msn274x system type
platform/x86: mlx-platform: Fix power cable setting for msn21xx family
platform/x86: mlx-platform: Add define for the negative bus
platform/x86: mlx-platform: Use defines for bus assignment
platform/mellanox: mlxreg-hotplug: Fix uninitialized variable
Moving cros_ec_dev to drivers/mfd.
Other small maintenance fixes.
-----BEGIN PGP SIGNATURE-----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=YEO6
-----END PGP SIGNATURE-----
Merge tag 'chrome-platform-for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform
Pull chrome platform updates from Benson Leung:
- move cros_ec_dev to drivers/mfd
- other small maintenance fixes
[ The cros_ec_dev movement came in earlier through the MFD tree - Linus ]
* tag 'chrome-platform-for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform:
platform/chrome: Use proper protocol transfer function
platform/chrome: cros_ec_lpc: Add support for Google Glimmer
platform/chrome: cros_ec_lpc: Register the driver if ACPI entry is missing.
platform/chrome: cros_ec_lpc: remove redundant pointer request
cros_ec: fix nul-termination for firmware build info
platform/chrome: chromeos_laptop: make chromeos_laptop const
ARM:
- Include icache invalidation optimizations, improving VM startup time
- Support for forwarded level-triggered interrupts, improving
performance for timers and passthrough platform devices
- A small fix for power-management notifiers, and some cosmetic changes
PPC:
- Add MMIO emulation for vector loads and stores
- Allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without
requiring the complex thread synchronization of older CPU versions
- Improve the handling of escalation interrupts with the XIVE interrupt
controller
- Support decrement register migration
- Various cleanups and bugfixes.
s390:
- Cornelia Huck passed maintainership to Janosch Frank
- Exitless interrupts for emulated devices
- Cleanup of cpuflag handling
- kvm_stat counter improvements
- VSIE improvements
- mm cleanup
x86:
- Hypervisor part of SEV
- UMIP, RDPID, and MSR_SMI_COUNT emulation
- Paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit
- Allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more AVX512
features
- Show vcpu id in its anonymous inode name
- Many fixes and cleanups
- Per-VCPU MSR bitmaps (already merged through x86/pti branch)
- Stable KVM clock when nesting on Hyper-V (merged through x86/hyperv)
-----BEGIN PGP SIGNATURE-----
iQEcBAABCAAGBQJafvMtAAoJEED/6hsPKofo6YcH/Rzf2RmshrWaC3q82yfIV0Qz
Z8N8yJHSaSdc3Jo6cmiVj0zelwAxdQcyjwlT7vxt5SL2yML+/Q0st9Hc3EgGGXPm
Il99eJEl+2MYpZgYZqV8ff3mHS5s5Jms+7BITAeh6Rgt+DyNbykEAvzt+MCHK9cP
xtsIZQlvRF7HIrpOlaRzOPp3sK2/MDZJ1RBE7wYItK3CUAmsHim/LVYKzZkRTij3
/9b4LP1yMMbziG+Yxt1o682EwJB5YIat6fmDG9uFeEVI5rWWN7WFubqs8gCjYy/p
FX+BjpOdgTRnX+1m9GIj0Jlc/HKMXryDfSZS07Zy4FbGEwSiI5SfKECub4mDhuE=
=C/uD
-----END PGP SIGNATURE-----
Merge tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Radim Krčmář:
"ARM:
- icache invalidation optimizations, improving VM startup time
- support for forwarded level-triggered interrupts, improving
performance for timers and passthrough platform devices
- a small fix for power-management notifiers, and some cosmetic
changes
PPC:
- add MMIO emulation for vector loads and stores
- allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without
requiring the complex thread synchronization of older CPU versions
- improve the handling of escalation interrupts with the XIVE
interrupt controller
- support decrement register migration
- various cleanups and bugfixes.
s390:
- Cornelia Huck passed maintainership to Janosch Frank
- exitless interrupts for emulated devices
- cleanup of cpuflag handling
- kvm_stat counter improvements
- VSIE improvements
- mm cleanup
x86:
- hypervisor part of SEV
- UMIP, RDPID, and MSR_SMI_COUNT emulation
- paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit
- allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more
AVX512 features
- show vcpu id in its anonymous inode name
- many fixes and cleanups
- per-VCPU MSR bitmaps (already merged through x86/pti branch)
- stable KVM clock when nesting on Hyper-V (merged through
x86/hyperv)"
* tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (197 commits)
KVM: PPC: Book3S: Add MMIO emulation for VMX instructions
KVM: PPC: Book3S HV: Branch inside feature section
KVM: PPC: Book3S HV: Make HPT resizing work on POWER9
KVM: PPC: Book3S HV: Fix handling of secondary HPTEG in HPT resizing code
KVM: PPC: Book3S PR: Fix broken select due to misspelling
KVM: x86: don't forget vcpu_put() in kvm_arch_vcpu_ioctl_set_sregs()
KVM: PPC: Book3S PR: Fix svcpu copying with preemption enabled
KVM: PPC: Book3S HV: Drop locks before reading guest memory
kvm: x86: remove efer_reload entry in kvm_vcpu_stat
KVM: x86: AMD Processor Topology Information
x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested
kvm: embed vcpu id to dentry of vcpu anon inode
kvm: Map PFN-type memory regions as writable (if possible)
x86/kvm: Make it compile on 32bit and with HYPYERVISOR_GUEST=n
KVM: arm/arm64: Fixup userspace irqchip static key optimization
KVM: arm/arm64: Fix userspace_irqchip_in_use counting
KVM: arm/arm64: Fix incorrect timer_is_pending logic
MAINTAINERS: update KVM/s390 maintainers
MAINTAINERS: add Halil as additional vfio-ccw maintainer
MAINTAINERS: add David as a reviewer for KVM/s390
...
59f47eff03 ("powerpc/pci: Use of_irq_parse_and_map_pci() helper")
replaced of_irq_parse_pci() + irq_create_of_mapping() with
of_irq_parse_and_map_pci(), but neglected to capture the virq
returned by irq_create_of_mapping(), so virq remained zero, which
caused INTx configuration to fail.
Save the virq value returned by of_irq_parse_and_map_pci() and correct
the virq declaration to match the of_irq_parse_and_map_pci() signature.
Fixes: 59f47eff03 "powerpc/pci: Use of_irq_parse_and_map_pci() helper"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Makefile changes:
- enable unused-variable warning that was wrongly disabled for clang
Kconfig changes:
- warn blank 'help' and fix existing instances
- fix 'choice' behavior to not write out invisible symbols
- fix misc weirdness
Coccinell changes:
- fix false positive of free after managed memory alloc detection
- improve performance of NULL dereference detection
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=jy5l
-----END PGP SIGNATURE-----
Merge tag 'kbuild-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
"Makefile changes:
- enable unused-variable warning that was wrongly disabled for clang
Kconfig changes:
- warn about blank 'help' and fix existing instances
- fix 'choice' behavior to not write out invisible symbols
- fix misc weirdness
Coccinell changes:
- fix false positive of free after managed memory alloc detection
- improve performance of NULL dereference detection"
* tag 'kbuild-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (21 commits)
kconfig: remove const qualifier from sym_expand_string_value()
kconfig: add xrealloc() helper
kconfig: send error messages to stderr
kconfig: echo stdin to stdout if either is redirected
kconfig: remove check_stdin()
kconfig: remove 'config*' pattern from .gitignnore
kconfig: show '?' prompt even if no help text is available
kconfig: do not write choice values when their dependency becomes n
coccinelle: deref_null: avoid useless computation
coccinelle: devm_free: reduce false positives
kbuild: clang: disable unused variable warnings only when constant
kconfig: Warn if help text is blank
nios2: kconfig: Remove blank help text
arm: vt8500: kconfig: Remove blank help text
MIPS: kconfig: Remove blank help text
MIPS: BCM63XX: kconfig: Remove blank help text
lib/Kconfig.debug: Remove blank help text
Staging: rtl8192e: kconfig: Remove blank help text
Staging: rtl8192u: kconfig: Remove blank help text
mmc: kconfig: Remove blank help text
...
Pull misc vfs fixes from Al Viro.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
seq_file: fix incomplete reset on read from zero offset
kernfs: fix regression in kernfs_fop_write caused by wrong type
This function returns realloc'ed memory, so the returned pointer
must be passed to free() when done. So, 'const' qualifier is odd.
It is allowed to modify the expanded string.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We already have xmalloc(), xcalloc(). Add xrealloc() as well
to save tedious error handling.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
It adds support for new Mellanox system types of basic classes qmb7, sn34,
sn37, containing systems QMB700 (40x200GbE InfiniBand switch), SN3700
(32x200GbE and 16x400GbE Ethernet switch) and SN3410 (6x400GbE plus
48x50GbE Ethernet switch). These are the Top of the Rack systems, equipped
with Mellanox COM-Express carrier board and switch board with Mellanox
Quantum device, which supports InfiniBand switching with 40X200G ports and
line rate of up to HDR speed or with Mellanox Spectrum-2 device, which
supports Ethernet switching with 32X200G ports line rate of up to HDR
speed.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
It adds support for new Mellanox system types of basic half unit size
class msn201x, containing system MSN2010 (18x10GbE plus 4x4x25GbE) half
and its derivatives. This is the Top of the Rack system, equipped with
Mellanox Small Form Factor carrier board and switch board with Mellanox
Spectrum device, which supports Ethernet switching with 32X100G ports line
rate of up to EDR speed.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
NeilBrown