tree 5cc8beee91f235cdaf6be986f90275e04137c2bc
parent 85f1fb72fa76eabc4481dc79f42d2b011df54762
author Wu Fengguang <fengguang.wu@intel.com> 1267825321 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1267903585 -0800

vfs: take f_lock on modifying f_mode after open time

We'll introduce FMODE_RANDOM which will be runtime modified.  So protect
all runtime modification to f_mode with f_lock to avoid races.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: <stable@kernel.org>			[2.6.33.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>