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author | Al Viro <viro@zeniv.linux.org.uk> | 2009-05-05 22:10:44 -0400 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-11 21:36:07 -0400 |
commit | a9e220f8322e2b0e0b8903fe00265461cffad3f0 (patch) | |
tree | b3be7d58b8eb9fd810636223f0458191ec1b9d75 /Kbuild | |
parent | 62c6943b4b1e818aea60c11c5a68a50785b83119 (diff) |
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>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions