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| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2008-10-18 20:28:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-20 08:52:38 -0700 |
| commit | 47c59803becb55b72b26cdab3838d621a15badc8 (patch) | |
| tree | 63711f3e41f46288e2fa18db0b4ed734e9b1f668 /mm/memory.c | |
| parent | c012a54ae0b2ee2c73499f54596e0f5257288fec (diff) | |
| download | lwn-47c59803becb55b72b26cdab3838d621a15badc8.tar.gz lwn-47c59803becb55b72b26cdab3838d621a15badc8.zip | |
devcgroup: remove spin_lock()
Since we introduced rcu for read side, spin_lock is used only for update.
But we always hold cgroup_lock() when update, so spin_lock() is not need.
Additional cleanup:
1) include linux/rcupdate.h explicitly
2) remove unused variable cur_devcgroup in devcgroup_update_access()
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: "Serge E. Hallyn" <serue@us.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
0 files changed, 0 insertions, 0 deletions