diff options
| author | Konstantin Khlebnikov <khlebnikov@openvz.org> | 2011-07-25 17:12:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 20:57:11 -0700 |
| commit | 72c4783210f77fd743f0a316858d33f27db51e7c (patch) | |
| tree | 4efc95eb0aaade090bac42e72c5973ada6d2cdb1 /kernel/futex.c | |
| parent | 76d3fbf8fbf6cc78ceb63549e0e0c5bc8a88f838 (diff) | |
mm: remove useless rcu lock-unlock from mapping_tagged()
radix_tree_tagged() is lockless - it reads from a member of the raid-tree
root node. It does not require any protection.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/futex.c')
0 files changed, 0 insertions, 0 deletions