diff options
| author | Hugh Dickins <hughd@google.com> | 2012-03-21 16:34:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-21 17:55:01 -0700 |
| commit | 9f7de8275b46d9d11b1505adbfe6c2bb48df4741 (patch) | |
| tree | 7495111b20585e6e4da20d1b46b7a3747903ce2a /lib/locking-selftest-wsem.h | |
| parent | 0e79dedde951e981612ed4e6d74873d61d2a113b (diff) | |
idr: make idr_get_next() good for rcu_read_lock()
Make one small adjustment to idr_get_next(): take the height from the top
layer (stable under RCU) instead of from the root (unprotected by RCU), as
idr_find() does: so that it can be used with RCU locking. Copied comment
on RCU locking from idr_find().
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/locking-selftest-wsem.h')
0 files changed, 0 insertions, 0 deletions