| author | Davidlohr Bueso <davidlohr.bueso@hp.com> | |
| Mon, 8 Jul 2013 23:01:15 +0000 (16:01 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Fri, 18 Oct 2013 14:45:46 +0000 (07:45 -0700) | ||
| commit | 15d49ab4814e9b3e6b340ec073a3ce95862643a9 | |
| tree | c8829ba3bb8d7fc71929db896f6fdd705e0b7573 | tree | snapshot (tar.xz tar.gz zip) |
| parent | f1f7913980afb02f8dee9ee190b29230e69cf7a4 | commit | diff |
ipc,msg: introduce lockless functions to obtain the ipc object
commit a5001a0d9768568de5d613c3b3a5b9c7721299da upstream.
Add msq_obtain_object() and msq_obtain_object_check(), which will allow
us to get the ipc object without acquiring the lock. Just as with
semaphores, these functions are basically wrappers around
ipc_obtain_object*().
Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit a5001a0d9768568de5d613c3b3a5b9c7721299da upstream.
Add msq_obtain_object() and msq_obtain_object_check(), which will allow
us to get the ipc object without acquiring the lock. Just as with
semaphores, these functions are basically wrappers around
ipc_obtain_object*().
Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| ipc/msg.c | diff | blob | history |