linux.git/mm/readahead.c, branch v3.10 Linux kernel source tree teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long 2013-03-04T03:46:22+00:00 Al Viro viro@zeniv.linux.org.uk 2013-01-21T20:16:58+00:00 4a0fd5bf0fd0795af8f1be3b261f5cf146a4cb9b ... and convert a bunch of SYSCALL_DEFINE ones to SYSCALL_DEFINE<n>, killing the boilerplate crap around them. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
... and convert a bunch of SYSCALL_DEFINE ones to SYSCALL_DEFINE<n>,
killing the boilerplate crap around them.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
switch simple cases of fget_light to fdget 2012-09-27T02:20:08+00:00 Al Viro viro@zeniv.linux.org.uk 2012-08-28T16:52:22+00:00 2903ff019b346ab8d36ebbf54853c3aaf6590608 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
switch readahead(2) to fget_light() 2012-09-27T01:10:04+00:00 Al Viro viro@zeniv.linux.org.uk 2012-08-27T00:30:57+00:00 132ea2479f77dd598f11a77bdfebbd23d244ce6f Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
mm: move readahead syscall to mm/readahead.c 2012-05-29T23:22:23+00:00 Cong Wang xiyou.wangcong@gmail.com 2012-05-29T22:06:43+00:00 782182e53a6cdb3e3d04cc40516e173046942a32 It is better to define readahead(2) in mm/readahead.c than in mm/filemap.c. Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
It is better to define readahead(2) in mm/readahead.c than in
mm/filemap.c.

Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm: Map most files to use export.h instead of module.h 2011-10-31T13:20:12+00:00 Paul Gortmaker paul.gortmaker@windriver.com 2011-10-16T06:01:52+00:00 b95f1b31b75588306e32b2afd32166cad48f670b The files changed within are only using the EXPORT_SYMBOL macro variants. They are not using core modular infrastructure and hence don't need module.h but only the export.h header. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> 
The files changed within are only using the EXPORT_SYMBOL
macro variants.  They are not using core modular infrastructure
and hence don't need module.h but only the export.h header.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
readahead: readahead page allocations are OK to fail 2011-05-25T15:39:25+00:00 Wu Fengguang fengguang.wu@intel.com 2011-05-25T00:12:25+00:00 7b1de5868b124d8f399d8791ed30a9b679d64d4d Pass __GFP_NORETRY|__GFP_NOWARN for readahead page allocations. readahead page allocations are completely optional. They are OK to fail and in particular shall not trigger OOM on themselves. Reported-by: Dave Young <hidave.darkstar@gmail.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Pass __GFP_NORETRY|__GFP_NOWARN for readahead page allocations.

readahead page allocations are completely optional.  They are OK to fail
and in particular shall not trigger OOM on themselves.

Reported-by: Dave Young <hidave.darkstar@gmail.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
read-ahead: use plugging 2011-03-10T07:52:26+00:00 Jens Axboe jaxboe@fusionio.com 2010-04-19T08:04:38+00:00 5b417b1873694ece3291d7f64a943304559a817b Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
block: remove per-queue plugging 2011-03-10T07:52:07+00:00 Jens Axboe jaxboe@fusionio.com 2011-03-10T07:52:07+00:00 7eaceaccab5f40bbfda044629a6298616aeaed50 Code has been converted over to the new explicit on-stack plugging, and delay users have been converted to use the new API for that. So lets kill off the old plugging along with aops->sync_page(). Signed-off-by: Jens Axboe <jaxboe@fusionio.com> 
Code has been converted over to the new explicit on-stack plugging,
and delay users have been converted to use the new API for that.
So lets kill off the old plugging along with aops->sync_page().

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
readahead.c: fix comment 2010-05-25T15:07:00+00:00 Huang Shijie shijie8@gmail.com 2010-05-24T21:32:36+00:00 bf8abe8b926f7546eb763fd2a088fe461dde6317 Fix a wrong comment over page_cache_async_readahead(). Signed-off-by: Huang Shijie <shijie8@gmail.com> Acked-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Fix a wrong comment over page_cache_async_readahead().

Signed-off-by: Huang Shijie <shijie8@gmail.com>
Acked-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
readahead: fix NULL filp dereference 2010-04-07T15:38:03+00:00 Wu Fengguang fengguang.wu@intel.com 2010-04-06T21:34:53+00:00 70655c06bd3f25111312d63985888112aed15ac5 btrfs relocate_file_extent_cluster() calls us with NULL filp: [ 4005.426805] BUG: unable to handle kernel NULL pointer dereference at 00000021 [ 4005.426818] IP: [<c109a130>] page_cache_sync_readahead+0x18/0x3e Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Yan Zheng <yanzheng@21cn.com> Reported-by: Kirill A. Shutemov <kirill@shutemov.name> Tested-by: Kirill A. Shutemov <kirill@shutemov.name> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
btrfs relocate_file_extent_cluster() calls us with NULL filp:

  [ 4005.426805] BUG: unable to handle kernel NULL pointer dereference at 00000021
  [ 4005.426818] IP: [<c109a130>] page_cache_sync_readahead+0x18/0x3e

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Yan Zheng <yanzheng@21cn.com>
Reported-by: Kirill A. Shutemov <kirill@shutemov.name>
Tested-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>