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authorAl Viro <viro@zeniv.linux.org.uk>2009-05-06 04:10:44 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-12 03:36:07 +0200
commita9e220f8322e2b0e0b8903fe00265461cffad3f0 (patch)
treeb3be7d58b8eb9fd810636223f0458191ec1b9d75 /fs/freevxfs
parentTrim a bit of crap from fs.h (diff)
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No need to do lock_super() for exclusion in generic_shutdown_super()
We can't run into contention on it. All other callers of lock_super() either hold s_umount (and we have it exclusive) or hold an active reference to superblock in question, which prevents the call of generic_shutdown_super() while the reference is held. So we can replace lock_super(s) with get_fs_excl() in generic_shutdown_super() (and corresponding change for unlock_super(), of course). Since ext4 expects s_lock held for its put_super, take lock_super() into it. The rest of filesystems do not care at all. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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