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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-04 19:13:40 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-05 02:19:39 +0200 |
| commit | 4091fd942e96af5a0b1dfa6aac5f44153ebf7cdb (patch) | |
| tree | 0455a439ad1a9884018286670e49c4e18cfaa359 /kernel/rcutree.h | |
| parent | ipc: sem_putref() does not need the semaphore lock any more (diff) | |
| download | linux-4091fd942e96af5a0b1dfa6aac5f44153ebf7cdb.tar.xz linux-4091fd942e96af5a0b1dfa6aac5f44153ebf7cdb.zip | |
ipc: move the rcu_read_lock() from sem_lock_and_putref() into callers
This is another ipc semaphore locking cleanup, trying to make the
locking more straightforward. We move the rcu read locking into the
callers of sem_lock_and_putref(), which in general means that we now
mostly do the rcu_read_lock() and rcu_read_unlock() in the same
function.
Mostly. We still have the ipc_addid/newary/freeary mess, and things
like ipcctl_pre_down_nolock().
Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/rcutree.h')
0 files changed, 0 insertions, 0 deletions