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| author |   Davidlohr Bueso <davidlohr.bueso@hp.com> | 2013-09-11 14:26:20 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:59:39 -0700 |
| commit | c97cb9ccab8c85428ec21eff690642ad2ce1fa8a (patch) | |
| tree | c435476a079d3bff28ec8c67377227effba57ca9 /COPYING | |
| parent | ipc,shm: introduce shmctl_nolock (diff) | |
| download | linux-dev-c97cb9ccab8c85428ec21eff690642ad2ce1fa8a.tar.xz linux-dev-c97cb9ccab8c85428ec21eff690642ad2ce1fa8a.zip | |
ipc,shm: make shmctl_nolock lockless
While the INFO cmd doesn't take the ipc lock, the STAT commands do acquire
it unnecessarily. We can do the permissions and security checks only
holding the rcu lock.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'COPYING')
0 files changed, 0 insertions, 0 deletions