Commit Graph

308866 Commits

Author SHA1 Message Date
Shai Fultheim
a0a9b04337 fs: Move bh_cachep to the __read_mostly section
bh_cachep is only written to once on initialization, so move it to the
__read_mostly section.

Signed-off-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Vlad Zolotarov <vlad@scalemp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:52 -04:00
Cong Wang
3ed37648e1 fs: move file_remove_suid() to fs/inode.c
file_remove_suid() is a generic function operates on struct file,
it almost has no relations with file mapping, so move it to fs/inode.c.

Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:52 -04:00
Artem Bityutskiy
8bdc81c506 jffs2: get rid of jffs2_sync_super
Currently JFFS2 file-system maps the VFS "superblock" abstraction to the
write-buffer. Namely, it uses VFS services to synchronize the write-buffer
periodically.

The whole "superblock write-out" VFS infrastructure is served by the
'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and
writes out all dirty superblock using the '->write_super()' call-back. But the
problem with this thread is that it wastes power by waking up the system every
5 seconds no matter what. So we want to kill it completely and thus, we need to
make file-systems to stop using the '->write_super' VFS service, and then
remove it together with the kernel thread.

This patch switches the JFFS2 write-buffer management from
'->write_super()'/'->s_dirt' to a delayed work. Instead of setting the 's_dirt'
flag we just schedule a delayed work for synchronizing the write-buffer.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:52 -04:00
Artem Bityutskiy
06688905cc jffs2: remove unnecessary GC pass on sync
We do not need to call 'jffs2_write_super()' on sync. This function
causes a GC pass to make sure the current contents is pushed out with
the data which we already have on the media.

But this is not needed on unmount and only slows sync down unnecessarily.
It is enough to just sync the write-buffer.

This call was added by one of the generic VFS rework patch-sets,
see d579ed00aa.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:51 -04:00
Artem Bityutskiy
d0490eea14 jffs2: remove unnecessary GC pass on umount
We do not need to call 'jffs2_write_super()' on unmount. This function
causes a GC pass to make sure the current contents is pushed out with
the data which we already have on the media.

But this is not needed on unmount and only slows unmount down unnecessarily.
It is enough to just sync the write-buffer.

This call was added by one of the generic VFS rework patch-sets,
see 8c85e12512.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:51 -04:00
Artem Bityutskiy
3a0c0e26b6 jffs2: remove lock_super
We do not need 'lock_super()'/'unlock_super()' in JFFS2 - kill them.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:51 -04:00
Al Viro
bb8ac181a5 bury __kernel_nlink_t, make internal nlink_t consistent
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:50 -04:00
Al Viro
1dfb5751a4 parisc: get rid of nlink_t, switch to explicitly-sized type
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:50 -04:00
Al Viro
e57f93cc53 powerpc: get rid of nlink_t uses, switch to explicitly-sized type
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-30 21:04:35 -04:00
Al Viro
dcc62b6b38 mips: get rid of nlink_t, use explictly-sized type (__u32 in all cases)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:42 -04:00
Al Viro
726592a9be mode_t whack-a-mole: ->is_visible() returns umode_t...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:42 -04:00
Al Viro
1676765238 get rid of idiotic misplaced __kernel_mode_t in ncfps kernel-private data structure
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:42 -04:00
Andi Kleen
962830df36 brlocks/lglocks: API cleanups
lglocks and brlocks are currently generated with some complicated macros
in lglock.h.  But there's no reason to not just use common utility
functions and put all the data into a common data structure.

In preparation, this patch changes the API to look more like normal
function calls with pointers, not magic macros.

The patch is rather large because I move over all users in one go to keep
it bisectable.  This impacts the VFS somewhat in terms of lines changed.
But no actual behaviour change.

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:41 -04:00
Andi Kleen
eea62f831b brlocks/lglocks: turn into functions
lglocks and brlocks are currently generated with some complicated macros
in lglock.h.  But there's no reason to not just use common utility
functions and put all the data into a common data structure.

Since there are at least two users it makes sense to share this code in a
library.  This is also easier maintainable than a macro forest.

This will also make it later possible to dynamically allocate lglocks and
also use them in modules (this would both still need some additional, but
now straightforward, code)

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:41 -04:00
Rusty Russell
9dd6fa03ab lglock: remove online variants of lock
Optimizing the slow paths adds a lot of complexity.  If you need to
grab every lock often, you have other problems.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:41 -04:00
Al Viro
ea022dfb3c ocfs: simplify symlink handling
seeing that "fast" symlinks still get allocation + copy, we might as
well simply switch them to pagecache-based variant of ->follow_link();
just need an appropriate ->readpage() for them...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:40 -04:00
Al Viro
408bd629ba get rid of pointless allocations and copying in ecryptfs_follow_link()
switch to generic_readlink(), while we are at it

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:40 -04:00
Al Viro
28fe3c1963 hpfs: assorted endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:39 -04:00
Al Viro
77ee26e44c hpfs: annotate ea
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:39 -04:00
Al Viro
46287aa652 hpfs: annotate struct hpfs_dirent
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:39 -04:00
Al Viro
6ce2bbba52 hpfs: annotate struct anode
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:38 -04:00
Al Viro
2b9f1cc29b hpfs: annotate struct fnode
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:38 -04:00
Al Viro
ddc19e6e04 hpfs: annotate btree nodes, get rid of bitfields mess
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:38 -04:00
Al Viro
39413c6046 hpfs: annotate struct dnode
little-endians...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:37 -04:00
Al Viro
52576da354 hpfs: bitmaps are little-endian
annotate properly...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:37 -04:00
Al Viro
c4c995430a hpfs: get rid of bitfields in struct fnode
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:37 -04:00
Al Viro
4085e155b1 hpfs: get rid of bitfields endianness wanking in extended_attribute
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:36 -04:00
Randy Dunlap
185553b224 fs: fix inode.c kernel-doc warnings
Fix kernel-doc warnings in fs/inode.c:

Warning(fs/inode.c:1493): No description found for parameter 'path'
Warning(fs/inode.c:1493): Excess function parameter 'mnt' description in 'touch_atime'
Warning(fs/inode.c:1493): Excess function parameter 'dentry' description in 'touch_atime'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:36 -04:00
Al Viro
de5e2b3628 hpfs: endianness bugs
a couple of le32 and le16 used with wrong le..._to_cpu(), plus
idiotic use of le32_to_cpu() on 1-bit bitfield

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:36 -04:00
Al Viro
528c032764 btrfs: trivial endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:35 -04:00
Al Viro
1db5df98fa ocfs2: kill endianness abuses in blockcheck.c
ocfs2_block_check is for little-endian contents; if we just want to
its fields converted to host-endian in a couple of functions, just
put those values into local u32 and u16...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:35 -04:00
Al Viro
f6a5690324 ocfs2: deal with __user misannotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:35 -04:00
Al Viro
8515841086 ocfs2: trivial endianness misannotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:34 -04:00
Al Viro
66f8f50920 affs: bury unused macros
... unused since 2.4.4.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:34 -04:00
Al Viro
af569596a9 kill v9fs_dentry_from_dir_inode()
In *all* callers we have a dentry of child of that directory.
Just use ->d_parent of that one, for fsck sake...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:34 -04:00
Al Viro
cc1dad7183 selinuxfs snprintf() misuses
a) %d does _not_ produce a page worth of output
b) snprintf() doesn't return negatives - it used to in old glibc, but
that's the kernel...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:33 -04:00
Sage Weil
c862868bb4 ceph: move encode_fh to new API
Use parent_inode has a flag for whether nfsd wants a connectable fh, but
generate one opportunistically so that we can take advantage of the
additional info in there.

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:33 -04:00
Al Viro
b0b0382bb4 ->encode_fh() API change
pass inode + parent's inode or NULL instead of dentry + bool saying
whether we want the parent or not.

NOTE: that needs ceph fix folded in.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:33 -04:00
Al Viro
6d42e7e9f6 ubifs: use generic_fillattr()
don't open-code it...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:32 -04:00
Al Viro
77ba78776e xfs: switch to proper __bitwise type for KM_... flags
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:32 -04:00
Al Viro
c217a2a004 switch utimes() to fget_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:32 -04:00
Al Viro
0aa2ee5f0a switch statfs to fget_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:31 -04:00
Al Viro
bdc689594b switch flock to fget_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:31 -04:00
Al Viro
20ba5d736f switch signalfd4() to fget_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:30 -04:00
Al Viro
545ec2c794 switch fcntl to fget_raw_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:30 -04:00
Al Viro
7449af1e8b switch xattr syscalls to fget_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:30 -04:00
Al Viro
863ced7fe7 switch readdir/getdents to fget_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:29 -04:00
Al Viro
c2bd6c11cd switch do_fsync() to fget_light()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-29 23:28:29 -04:00
Linus Torvalds
442a9ffabb Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS updates from Steve French.

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6: (29 commits)
  cifs: fix oops while traversing open file list (try #4)
  cifs: Fix comment as d_alloc_root() is replaced by d_make_root()
  CIFS: Introduce SMB2 mounts as vers=2.1
  CIFS: Introduce SMB2 Kconfig option
  CIFS: Move add/set_credits and get_credits_field to ops structure
  CIFS: Move protocol specific demultiplex thread calls to ops struct
  CIFS: Move protocol specific part from cifs_readv_receive to ops struct
  CIFS: Move header_size/max_header_size to ops structure
  CIFS: Move protocol specific part from SendReceive2 to ops struct
  cifs: Include backup intent search flags during searches {try #2)
  CIFS: Separate protocol specific part from setlk
  CIFS: Separate protocol specific part from getlk
  CIFS: Separate protocol specific lock type handling
  CIFS: Convert lock type to 32 bit variable
  CIFS: Move locks to cifsFileInfo structure
  cifs: convert send_nt_cancel into a version specific op
  cifs: add a smb_version_operations/values structures and a smb_version enum
  cifs: remove the vers= and version= synonyms for ver=
  cifs: add warning about change in default cache semantics in 3.7
  cifs: display cache= option in /proc/mounts
  ...
2012-05-29 12:42:10 -07:00
Linus Torvalds
4b78147468 MFD changes for 3.5
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Merge tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

Pull MFD changes from Samuel Ortiz:
 "Besides the usual cleanups, this one brings:

   * Support for 5 new chipsets: Intel's ICH LPC and SCH Centerton,
     ST-E's STAX211, Samsung's MAX77693 and TI's LM3533.

   * Device tree support for the twl6040, tps65910, da9502 and ab8500
     drivers.

   * Fairly big tps56910, ab8500 and db8500 updates.

   * i2c support for mc13xxx.

   * Our regular update for the wm8xxx driver from Mark."

Fix up various conflicts with other trees, largely due to ab5500 removal
etc.

* tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (106 commits)
  mfd: Fix build break of max77693 by adding REGMAP_I2C option
  mfd: Fix twl6040 build failure
  mfd: Fix max77693 build failure
  mfd: ab8500-core should depend on MFD_DB8500_PRCMU
  gpio: tps65910: dt: process gpio specific device node info
  mfd: Remove the parsing of dt info for tps65910 gpio
  mfd: Save device node parsed platform data for tps65910 sub devices
  mfd: Add r_select to lm3533 platform data
  gpio: Add Intel Centerton support to gpio-sch
  mfd: Emulate active low IRQs as well as active high IRQs for wm831x
  mfd: Mark two lm3533 zone registers as volatile
  mfd: Fix return type of lm533 attribute is_visible
  mfd: Enable Device Tree support in the ab8500-pwm driver
  mfd: Enable Device Tree support in the ab8500-sysctrl driver
  mfd: Add support for Device Tree to twl6040
  mfd: Register the twl6040 child for the ASoC codec unconditionally
  mfd: Allocate twl6040 IRQ numbers dynamically
  mfd: twl6040 code cleanup in interrupt initialization part
  mfd: Enable ab8500-gpadc driver for Device Tree
  mfd: Prevent unassigned pointer from being used in ab8500-gpadc driver
  ...
2012-05-29 11:53:11 -07:00