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| author | Al Viro <viro@zeniv.linux.org.uk> | 2010-03-22 15:22:31 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-05-21 18:31:14 -0400 |
| commit | 1712ac8fda7d8bc4dc921f5777b7423aacad7263 (patch) | |
| tree | 1493bc7166ace04d9ac2f4d5383eaab1d43e17c4 /kernel/rcutiny.c | |
| parent | b20bd1a5e78af267dc4b6e1ffed48d5d776302c5 (diff) | |
| download | linux-1712ac8fda7d8bc4dc921f5777b7423aacad7263.tar.gz linux-1712ac8fda7d8bc4dc921f5777b7423aacad7263.tar.bz2 linux-1712ac8fda7d8bc4dc921f5777b7423aacad7263.zip | |
Saner locking around deactivate_super()
Make sure that s_umount is acquired *before* we drop the final
active reference; we still have the fast path (atomic_dec_unless)
and we have gotten rid of the window between the moment when
s_active hits zero and s_umount is acquired. Which simplifies
the living hell out of grab_super() and inotify pin_to_kill()
stuff.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/rcutiny.c')
0 files changed, 0 insertions, 0 deletions