17 Mar, 2017
1 commit
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get_seconds() returns real wall-clock seconds. On 32-bit systems
this value will overflow in year 2038 and beyond. This patch changes
afs's vlocation record to use ktime_get_real_seconds() instead, for the
fields time_of_death and update_at.Signed-off-by: Tina Ruchandani
Signed-off-by: David Howells
09 Jan, 2017
1 commit
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The afs_wait_mode struct isn't really necessary. Client calls only use one
of a choice of two (synchronous or the asynchronous) and incoming calls
don't use the wait at all. Replace with a boolean parameter.Signed-off-by: David Howells
05 Sep, 2016
1 commit
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The workqueue "afs_vlocation_update_worker" queues a single work item
&afs_vlocation_update and hence it doesn't require execution ordering.
Hence, alloc_workqueue has been used to replace the deprecated
create_singlethread_workqueue instance.Since the workqueue is being used on a memory reclaim path, WQ_MEM_RECLAIM
flag has been set to ensure forward progress under memory pressure.Since there are fixed number of work items, explicit concurrency
limit is unnecessary here.Signed-off-by: Bhaktipriya Shridhar
Signed-off-by: David Howells
19 Sep, 2014
1 commit
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schedule(), io_schedule() and schedule_timeout() always return
with TASK_RUNNING state set, so one more setting is unnecessary.(All places in patch are visible good, only exception is
kiblnd_scheduler() from:drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
Its schedule() is one line above standard 3 lines of unified diff)
No places where set_current_state() is used for mb().
Signed-off-by: Kirill Tkhai
Signed-off-by: Peter Zijlstra (Intel)
Link: http://lkml.kernel.org/r/1410529254.3569.23.camel@tkhai
Cc: Alasdair Kergon
Cc: Anil Belur
Cc: Arnd Bergmann
Cc: Dave Kleikamp
Cc: David Airlie
Cc: David Howells
Cc: Dmitry Eremin
Cc: Frank Blaschka
Cc: Greg Kroah-Hartman
Cc: Heiko Carstens
Cc: Helge Deller
Cc: Isaac Huang
Cc: James E.J. Bottomley
Cc: James E.J. Bottomley
Cc: J. Bruce Fields
Cc: Jeff Dike
Cc: Jesper Nilsson
Cc: Jiri Slaby
Cc: Laura Abbott
Cc: Liang Zhen
Cc: Linus Torvalds
Cc: Martin Schwidefsky
Cc: Masaru Nomura
Cc: Michael Opdenacker
Cc: Mikael Starvik
Cc: Mike Snitzer
Cc: Neil Brown
Cc: Oleg Drokin
Cc: Peng Tao
Cc: Richard Weinberger
Cc: Robert Love
Cc: Steven Rostedt
Cc: Trond Myklebust
Cc: Ursula Braun
Cc: Zi Shen Lim
Cc: devel@driverdev.osuosl.org
Cc: dm-devel@redhat.com
Cc: dri-devel@lists.freedesktop.org
Cc: fcoe-devel@open-fcoe.org
Cc: jfs-discussion@lists.sourceforge.net
Cc: linux390@de.ibm.com
Cc: linux-afs@lists.infradead.org
Cc: linux-cris-kernel@axis.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-nfs@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-raid@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: qla2xxx-upstream@qlogic.com
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: user-mode-linux-user@lists.sourceforge.net
Signed-off-by: Ingo Molnar
28 Sep, 2013
1 commit
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Provide the ability to enable and disable fscache cookies. A disabled cookie
will reject or ignore further requests to:Acquire a child cookie
Invalidate and update backing objects
Check the consistency of a backing object
Allocate storage for backing page
Read backing pages
Write to backing pagesbut still allows:
Checks/waits on the completion of already in-progress objects
Uncaching of pages
Relinquishment of cookiesTwo new operations are provided:
(1) Disable a cookie:
void fscache_disable_cookie(struct fscache_cookie *cookie,
bool invalidate);If the cookie is not already disabled, this locks the cookie against other
dis/enablement ops, marks the cookie as being disabled, discards or
invalidates any backing objects and waits for cessation of activity on any
associated object.This is a wrapper around a chunk split out of fscache_relinquish_cookie(),
but it reinitialises the cookie such that it can be reenabled.All possible failures are handled internally. The caller should consider
calling fscache_uncache_all_inode_pages() afterwards to make sure all page
markings are cleared up.(2) Enable a cookie:
void fscache_enable_cookie(struct fscache_cookie *cookie,
bool (*can_enable)(void *data),
void *data)If the cookie is not already enabled, this locks the cookie against other
dis/enablement ops, invokes can_enable() and, if the cookie is not an
index cookie, will begin the procedure of acquiring backing objects.The optional can_enable() function is passed the data argument and returns
a ruling as to whether or not enablement should actually be permitted to
begin.All possible failures are handled internally. The cookie will only be
marked as enabled if provisional backing objects are allocated.A later patch will introduce these to NFS. Cookie enablement during nfs_open()
is then contingent on i_writecount <dhowells@redhat.com
14 Aug, 2012
1 commit
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Convert delayed_work users doing cancel_delayed_work() followed by
queue_delayed_work() to mod_delayed_work().Most conversions are straight-forward. Ones worth mentioning are,
* drivers/edac/edac_mc.c: edac_mc_workq_setup() converted to always
use mod_delayed_work() and cancel loop in
edac_mc_reset_delay_period() is dropped.* drivers/platform/x86/thinkpad_acpi.c: No need to remember whether
watchdog is active or not. @fan_watchdog_active and related code
dropped.* drivers/power/charger-manager.c: Seemingly a lot of
delayed_work_pending() abuse going on here.
[delayed_]work_pending() are unsynchronized and racy when used like
this. I converted one instance in fullbatt_handler(). Please
conver the rest so that it invokes workqueue APIs for the intended
target state rather than trying to game work item pending state
transitions. e.g. if timer should be modified - call
mod_delayed_work(), canceled - call cancel_delayed_work[_sync]().* drivers/thermal/thermal_sys.c: thermal_zone_device_set_polling()
simplified. Note that round_jiffies() calls in this function are
meaningless. round_jiffies() work on absolute jiffies not delta
delay used by delayed_work.v2: Tomi pointed out that __cancel_delayed_work() users can't be
safely converted to mod_delayed_work(). They could be calling it
from irq context and if that happens while delayed_work_timer_fn()
is running, it could deadlock. __cancel_delayed_work() users are
dropped.Signed-off-by: Tejun Heo
Acked-by: Henrique de Moraes Holschuh
Acked-by: Dmitry Torokhov
Acked-by: Anton Vorontsov
Acked-by: David Howells
Cc: Tomi Valkeinen
Cc: Jens Axboe
Cc: Jiri Kosina
Cc: Doug Thompson
Cc: David Airlie
Cc: Roland Dreier
Cc: "John W. Linville"
Cc: Zhang Rui
Cc: Len Brown
Cc: "J. Bruce Fields"
Cc: Johannes Berg
15 Jan, 2011
1 commit
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flush_scheduled_work() is going away. afs needs to make sure all the
works it has queued have finished before being unloaded and there can
be arbitrary number of pending works. Add afs_wq and use it as the
flush domain instead of the system workqueue.Also, convert cancel_delayed_work() + flush_scheduled_work() to
cancel_delayed_work_sync() in afs_mntpt_kill_timer().Signed-off-by: Tejun Heo
Signed-off-by: David Howells
Cc: linux-afs@lists.infradead.org
Signed-off-by: Linus Torvalds
30 Mar, 2010
1 commit
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…it slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
17 Jun, 2009
1 commit
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Authentication error abort codes should be translated to appropriate
Linux error codes, rather than all being translated to EREMOTEIO - which
indicates that the server had internal problems.Additionally, a server shouldn't be marked unavailable and the next
server tried if an authentication error occurs. This will quickly make
all the servers unavailable to the client. Instead the error should be
returned straight to the user.Signed-off-by: David Howells
Signed-off-by: Linus Torvalds
03 Apr, 2009
1 commit
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The attached patch makes the kAFS filesystem in fs/afs/ use FS-Cache, and
through it any attached caches. The kAFS filesystem will use caching
automatically if it's available.Signed-off-by: David Howells
Acked-by: Steve Dickson
Acked-by: Trond Myklebust
Acked-by: Al Viro
Tested-by: Daire Byrne
06 Nov, 2007
1 commit
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This patch fixes an off-by-one error spotted by the Coverity checker.
Signed-off-by: Adrian Bunk
Acked-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Oct, 2007
1 commit
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This patch contains the following possible cleanups:
- make the following needlessly global functions static:
- rxrpc.c: afs_send_pages()
- vlocation.c: afs_vlocation_queue_for_updates()
- write.c: afs_writepages_region()
- make the following needlessly global variables static:
- mntpt.c: afs_mntpt_expiry_timeout
- proc.c: afs_vlocation_states[]
- server.c: afs_server_timeout
- vlocation.c: afs_vlocation_timeout
- vlocation.c: afs_vlocation_update_timeout
- #if 0 the following unused function:
- cell.c: afs_get_cell_maybe()
- #if 0 the following unused variables:
- callback.c: afs_vnode_update_timeout
- cmservice.c: struct afs_cm_workqueueSigned-off-by: Adrian Bunk
Acked-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 May, 2007
1 commit
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First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
getting them indirectlyNet result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
they don't need sched.h
b) sched.h stops being dependency for significant number of files:
on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
after patch it's only 3744 (-8.3%).Cross-compile tested on
all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
alpha alpha-up
arm
i386 i386-up i386-defconfig i386-allnoconfig
ia64 ia64-up
m68k
mips
parisc parisc-up
powerpc powerpc-up
s390 s390-up
sparc sparc-up
sparc64 sparc64-up
um-x86_64
x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfigas well as my two usual configs.
Signed-off-by: Alexey Dobriyan
Signed-off-by: Linus Torvalds
03 May, 2007
1 commit
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Fix use of __exit functions from __init path.
Signed-off-by: David Howells
Signed-off-by: David S. Miller
28 Apr, 2007
1 commit
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Fix the wakeup transitions after a VLocation record update completes
one way or another. This builds on Dave Miller's partial fix.Also move wakeups outside the spinlocked sections.
Signed-off-by: David Howells
Signed-off-by: David S. Miller
27 Apr, 2007
4 commits
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cmpxchg() is not available on every processor so can't
be used in generic code.Replace with spinlock protection on the ->state changes,
wakeups, and wait loops.Add what appears to be a missing wakeup on transition
to AFS_VL_VALID state in afs_vlocation_updater().Signed-off-by: David S. Miller
-
Add security support to the AFS filesystem. Kerberos IV tickets are added as
RxRPC keys are added to the session keyring with the klog program. open() and
other VFS operations then find this ticket with request_key() and either use
it immediately (eg: mkdir, unlink) or attach it to a file descriptor (open).Signed-off-by: David Howells
Signed-off-by: David S. Miller -
Make the in-kernel AFS filesystem use AF_RXRPC instead of the old RxRPC code.
Signed-off-by: David Howells
Signed-off-by: David S. Miller -
Clean up the AFS sources.
Also remove references to AFS keys. RxRPC keys are used instead.
Signed-off-by: David Howells
Signed-off-by: David S. Miller
27 Sep, 2006
1 commit
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Conversions from kmalloc+memset to kzalloc.
Signed-off-by: Panagiotis Issaris
Jffs2-bit-acked-by: David Woodhouse
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Jun, 2006
1 commit
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This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under fs/.Cc: Ian Kent
Acked-by: Joel Becker
Cc: Neil Brown
Cc: Hans Reiser
Cc: Urban Widmark
Acked-by: David Howells
Acked-by: Mark Fasheh
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
