linux-toradex.git/fs/sysv/namei.c, branch v3.0.18 Linux kernel for Apalis and Colibri modules sysv: remove unnecessary dentry_unhash from rmdir, dir rename 2011-05-28T05:02:50+00:00 Sage Weil sage@newdream.net 2011-05-27T20:41:55+00:00 873ae4d5a8b282c6e2bbc09c6d59eeb1bec97ef7 sysv does not have problems with references to unlinked directories. CC: Christoph Hellwig <hch@infradead.org> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
sysv does not have problems with references to unlinked directories.

CC: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: push dentry_unhash on rename_dir into file systems 2011-05-26T11:26:48+00:00 Sage Weil sage@newdream.net 2011-05-24T20:06:07+00:00 e4eaac06bcccb2a70bca6a2de9871882dce2aa14 Only a few file systems need this. Start by pushing it down into each rename method (except gfs2 and xfs) so that it can be dealt with on a per-fs basis. Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Only a few file systems need this.  Start by pushing it down into each
rename method (except gfs2 and xfs) so that it can be dealt with on a
per-fs basis.

Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: push dentry_unhash on rmdir into file systems 2011-05-26T11:26:47+00:00 Sage Weil sage@newdream.net 2011-05-24T20:06:06+00:00 79bf7c732b5ff75b96022ed9d29181afd3d2509c Only a few file systems need this. Start by pushing it down into each fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs basis. This does not change behavior for any in-tree file systems. Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Only a few file systems need this.  Start by pushing it down into each
fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs
basis.

This does not change behavior for any in-tree file systems.

Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
sysv: i_nlink races in rename() 2011-03-03T06:28:16+00:00 Al Viro viro@zeniv.linux.org.uk 2011-03-02T14:38:45+00:00 4787d45fa76b97e224a8299086bb5fb496275796 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
switch sysv 2011-01-13T01:02:44+00:00 Al Viro viro@zeniv.linux.org.uk 2010-12-18T16:16:30+00:00 30304aba6a053f114092cea6643a96ac2902bc5a Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs: dcache reduce branches in lookup path 2011-01-07T06:50:28+00:00 Nick Piggin npiggin@kernel.dk 2011-01-07T06:49:55+00:00 fb045adb99d9b7c562dc7fef834857f78249daa1 Reduce some branches and memory accesses in dcache lookup by adding dentry flags to indicate common d_ops are set, rather than having to check them. This saves a pointer memory access (dentry->d_op) in common path lookup situations, and saves another pointer load and branch in cases where we have d_op but not the particular operation. Patched with: git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i Signed-off-by: Nick Piggin <npiggin@kernel.dk> 
Reduce some branches and memory accesses in dcache lookup by adding dentry
flags to indicate common d_ops are set, rather than having to check them.
This saves a pointer memory access (dentry->d_op) in common path lookup
situations, and saves another pointer load and branch in cases where we
have d_op but not the particular operation.

Patched with:

git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
fs: change d_hash for rcu-walk 2011-01-07T06:50:20+00:00 Nick Piggin npiggin@kernel.dk 2011-01-07T06:49:28+00:00 b1e6a015a580ad145689ad1d6b4aa0e03e6c868b Change d_hash so it may be called from lock-free RCU lookups. See similar patch for d_compare for details. For in-tree filesystems, this is just a mechanical change. Signed-off-by: Nick Piggin <npiggin@kernel.dk> 
Change d_hash so it may be called from lock-free RCU lookups. See similar
patch for d_compare for details.

For in-tree filesystems, this is just a mechanical change.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
new helper: ihold() 2010-10-26T01:26:11+00:00 Al Viro viro@zeniv.linux.org.uk 2010-10-23T15:11:40+00:00 7de9c6ee3ecffd99e1628e81a5ea5468f7581a1f Clones an existing reference to inode; caller must already hold one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Clones an existing reference to inode; caller must already hold one.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
constify dentry_operations: misc filesystems 2009-03-27T18:44:00+00:00 Al Viro viro@zeniv.linux.org.uk 2009-02-20T05:55:13+00:00 e16404ed0f3f330dc3e99b95cef69bb60bcd27f7 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
iget: stop the SYSV filesystem from using iget() and read_inode() 2008-02-07T16:42:29+00:00 David Howells dhowells@redhat.com 2008-02-07T08:15:47+00:00 b8e1343f67460554ca5321956c440cc064e9889b Stop the SYSV filesystem from using iget() and read_inode(). Replace sysv_read_inode() with sysv_iget(), and call that instead of iget(). sysv_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Stop the SYSV filesystem from using iget() and read_inode().  Replace
sysv_read_inode() with sysv_iget(), and call that instead of iget().
sysv_iget() then uses iget_locked() directly and returns a proper error code
instead of an inode in the event of an error.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>