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authorPeter Staubach <staubach@redhat.com>2006-02-17 13:52:36 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-17 13:59:26 -0800
commitb2f49033d80c952a0ffc2d5647bc1a0b8a09c1b3 (patch)
tree63a57e80389c1343e56150d31accf91829ce700a /drivers/char/tpm
parent614f8f50ca1361d054cdeca38d241684490d2296 (diff)
[PATCH] fix deadlock in ext2
Fix a deadlock possible in the ext2 file system implementation. This deadlock occurs when a file is removed from an ext2 file system which was mounted with the "sync" mount option. The problem is that ext2_xattr_delete_inode() was invoking the routine, sync_dirty_buffer(), using a buffer head which was previously locked via lock_buffer(). The first thing that sync_dirty_buffer() does is to lock the buffer head that it was passed. It does this via lock_buffer(). Oops. The solution is to unlock the buffer head in ext2_xattr_delete_inode() before invoking sync_dirty_buffer(). This makes the code in ext2_xattr_delete_inode() obey the same locking rules as all other callers of sync_dirty_buffer() in the ext2 file system implementation. Signed-off-by: Peter Staubach <staubach@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/tpm')
0 files changed, 0 insertions, 0 deletions