linux.git/fs/dcache.c, branch v2.6.25

dentries: Extract common code to remove dentry from lru

2008-02-15T05:17:09+00:00

Extract the common code to remove a dentry from the lru into a new function
dentry_lru_remove().

Two call sites used list_del() instead of list_del_init().  AFAIK the
performance of both is the same.  dentry_lru_remove() does a list_del_init().

As a result dentry->d_lru is now always empty when a dentry is freed.

Signed-off-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

d_path: Make d_path() use a struct path

2008-02-15T05:17:09+00:00

d_path() is used on a  pair.  Lets use a struct path to
reflect this.

[akpm@linux-foundation.org: fix build in mm/memory.c]
Signed-off-by: Jan Blunck 
Acked-by: Bryan Wu 
Acked-by: Christoph Hellwig 
Cc: Al Viro 
Cc: "J. Bruce Fields" 
Cc: Neil Brown 
Cc: Michael Halcrow 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

d_path: kerneldoc cleanup

2008-02-15T05:17:08+00:00

Move and update d_path() kernel API documentation.

Signed-off-by: Jan Blunck 
Acked-by: Christoph Hellwig 
Cc: Al Viro 
Cc: "J. Bruce Fields" 
Cc: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

One less parameter to __d_path

2008-02-15T05:17:08+00:00

All callers to __d_path pass the dentry and vfsmount of a struct path to
__d_path.  Pass the struct path directly, instead.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Andreas Gruenbacher 
Signed-off-by: Jan Blunck 
Acked-by: Christoph Hellwig 
Cc: Al Viro 
Cc: "J. Bruce Fields" 
Cc: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Use struct path in fs_struct

2008-02-15T05:13:33+00:00

* Use struct path in fs_struct.

Signed-off-by: Andreas Gruenbacher 
Signed-off-by: Jan Blunck 
Acked-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

inotify: remove debug code

2008-02-06T18:41:07+00:00

The inotify debugging code is supposed to verify that the
DCACHE_INOTIFY_PARENT_WATCHED scalability optimisation does not result in
notifications getting lost nor extra needless locking generated.

Unfortunately there are also some races in the debugging code.  And it isn't
very good at finding problems anyway.  So remove it for now.

Signed-off-by: Nick Piggin 
Cc: Robert Love 
Cc: John McCutchan 
Cc: Jan Kara 
Cc: Yan Zheng 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fs: use hlist_unhashed

2008-02-06T18:41:04+00:00

Use hlist_unhashed() instead of opencoded equivalent.

Signed-off-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

dcache: don't expose uninitialized memory in /proc//fd/

2007-10-22T15:13:18+00:00

Well, it's not especially important that target->d_iname get the contents
of dentry->d_iname, but it's important that it get initialized with
*something*, otherwise we're just exposing some random piece of memory to
anyone who reads the link at /proc//fd/ for the deleted file, when
it's still held open by someone.

I've run a test program that copies a short (<36 character) name ontop of a
long (>=36 character) name and see that the first time I run it, without
this patch, I get unpredicatable results out of /proc//fd/.

Signed-off-by: J. Bruce Fields 
Cc: Al Viro 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] audit: watching subtrees

2007-10-21T06:37:45+00:00

New kind of audit rule predicates: "object is visible in given subtree".
The part that can be sanely implemented, that is.  Limitations:
	* if you have hardlink from outside of tree, you'd better watch
it too (or just watch the object itself, obviously)
	* if you mount something under a watched tree, tell audit
that new chunk should be added to watched subtrees
	* if you umount something in a watched tree and it's still mounted
elsewhere, you will get matches on events happening there.  New command
tells audit to recalculate the trees, trimming such sources of false
positives.

Note that it's _not_ about path - if something mounted in several places
(multiple mount, bindings, different namespaces, etc.), the match does
_not_ depend on which one we are using for access.

Signed-off-by: Al Viro

vfs: use the predefined d_unhashed inline function instead

2007-10-17T15:43:00+00:00

Signed-off-by: Denis Cheng 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds