linux.git/fs/dcache.c, branch v2.6.34

fix race in d_splice_alias()

2010-03-03T19:13:08+00:00

rehashing the negative placeholder opens a race with d_lookup();
we unhash it almost immediately (by d_move()), but the race
window is there.  Since d_move() doesn't rely on target being
hashed, we don't need that d_rehash() at all.

Signed-off-by: Al Viro

New helper: path_is_under(path1, path2)

2010-03-03T19:07:55+00:00

Analog of is_subdir for vfsmount,dentry pairs, moved from audit_tree.c

Signed-off-by: Al Viro

fs/dcache.c: CodingStyle cleanup

2010-03-03T18:00:19+00:00

Cleanup EXPORT* macros according to Documantation/CodingStyle.

Move EXPORT* macros to the line immediately after the closing
function brace.

Signed-off-by: H Hartley Sweeten 
Signed-off-by: Al Viro

libfs: move EXPORT_SYMBOL for d_alloc_name

2009-12-16T17:16:48+00:00

The EXPORT_SYMBOL for d_alloc_name is in fs/libfs.c but the function
is in fs/dcache.c.  Move the EXPORT_SYMBOL to the line immediately
after the closing function brace line in fs/dcache.c as mentioned
in Documentation/CodingStyle.

Signed-off-by: H Hartley Sweeten 
Signed-off-by: Al Viro

sched: Pull up the might_sleep() check into cond_resched()

2009-07-18T13:51:44+00:00

might_sleep() is called late-ish in cond_resched(), after the
need_resched()/preempt enabled/system running tests are
checked.

It's better to check the sleeps while atomic earlier and not
depend on some environment datas that reduce the chances to
detect a problem.

Also define cond_resched_*() helpers as macros, so that the
FILE/LINE reported in the sleeping while atomic warning
displays the real origin and not sched.h

Changes in v2:

 - Call __might_sleep() directly instead of might_sleep() which
   may call cond_resched()

 - Turn cond_resched() into a macro so that the file:line
   couple reported refers to the caller of cond_resched() and
   not __cond_resched() itself.

Changes in v3:

 - Also propagate this __might_sleep() pull up to
   cond_resched_lock() and cond_resched_softirq()

Signed-off-by: Frederic Weisbecker 
Signed-off-by: Peter Zijlstra 
LKML-Reference: <1247725694-6082-6-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar

dcache: extrace and use d_unlinked()

2009-06-12T01:36:06+00:00

d_unlinked() will be used in middle-term to ban checkpointing when opened
but unlinked file is detected, and in long term, to detect such situation
and special case on it.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Al Viro

fs: dcache fix LRU ordering

2009-05-09T14:49:40+00:00

Fix ordering of LRU when moving referenced dentries to the head of the list
(they should go to the head of the list in the same order as they were found
from the tail, rather than reverse order).

Signed-off-by: Nick Piggin 
Signed-off-by: Al Viro

No need for crossing to mountpoint in audit_tag_tree()

2009-04-21T03:01:15+00:00

is_under() will DTRT anyway.  And yes, is_subdir() behaviour
is intentional.

Signed-off-by: Al Viro

Trim includes of fdtable.h

2009-04-01T03:00:28+00:00

Signed-off-by: Al Viro

Get rid of indirect include of fs_struct.h

2009-04-01T03:00:27+00:00

Don't pull it in sched.h; very few files actually need it and those
can include directly.  sched.h itself only needs forward declaration
of struct fs_struct;

Signed-off-by: Al Viro