aha/ipc
Manfred Spraul b97e820fff ipc/sem.c: add a per-semaphore pending list
Based on Nick's findings:

sysv sem has the concept of semaphore arrays that consist out of multiple
semaphores.  Atomic operations that affect multiple semaphores are
supported.

The patch is the first step for optimizing simple, single semaphore
operations: In addition to the global list of all pending operations, a
2nd, per-semaphore list with the simple operations is added.

Note: this patch does not make sense by itself, the new list is used
nowhere.

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Pierre Peiffer <peifferp@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16 07:20:10 -08:00
..
compat.c fix logic error in ipc compat semctl() 2007-07-06 10:23:43 -07:00
compat_mq.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipc_sysctl.c sysctl ipc: Remove dead binary sysctl support code. 2009-11-12 02:04:54 -08:00
ipcns_notifier.c ipc: do not use a negative value to re-enable msgmni automatic recomputing 2008-07-25 10:53:42 -07:00
Makefile namespaces: mqueue namespace: adapt sysctl 2009-04-07 08:31:09 -07:00
mq_sysctl.c sysctl ipc: Remove dead binary sysctl support code. 2009-11-12 02:04:54 -08:00
mqueue.c const: mark remaining super_operations const 2009-09-22 07:17:24 -07:00
msg.c ipc ns: fix memory leak (idr) 2009-12-16 07:20:09 -08:00
msgutil.c namespaces: ipc namespaces: implement support for posix msqueues 2009-04-07 08:31:09 -07:00
namespace.c ipcns: make free_ipc_ns() static 2009-06-18 13:03:56 -07:00
sem.c ipc/sem.c: add a per-semaphore pending list 2009-12-16 07:20:10 -08:00
shm.c ipc ns: fix memory leak (idr) 2009-12-16 07:20:09 -08:00
util.c seq_file: constify seq_operations 2009-09-23 07:39:29 -07:00
util.h ipc: unbreak 32-bit shmctl/semctl/msgctl 2009-06-21 12:48:43 -07:00