Manfred Spraul 196aa0132f ipc/util.c, ipc_rcu_alloc: cacheline align allocation ...

Enforce that ipc_rcu_alloc returns a cacheline aligned pointer on SMP.

Rationale:

The SysV sem code tries to move the main spinlock into a seperate
cacheline (____cacheline_aligned_in_smp).  This works only if
ipc_rcu_alloc returns cacheline aligned pointers.  vmalloc and kmalloc
return cacheline algined pointers, the implementation of ipc_rcu_alloc
breaks that.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-07-09 10:33:28 -07:00

..

compat_mq.c

ipc: initialize structure memory to zero for compat functions

2010-10-27 18:03:13 -07:00

compat.c

get rid of union semop in sys_semctl(2) arguments

2013-03-05 15:14:16 -05:00

ipc_sysctl.c

ipc: add sysctl to specify desired next object id

2013-01-04 16:11:45 -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

Add generic sys_ipc wrapper

2010-03-12 15:52:32 -08:00

mq_sysctl.c

mqueue: separate mqueue default value from maximum value

2012-05-31 17:49:31 -07:00

mqueue.c

audit: fix mq_open and mq_unlink to add the MQ root as a hidden parent audit_names record

2013-07-09 10:33:19 -07:00

msg.c

ipc: remove unused functions

2013-07-09 10:33:27 -07:00

msgutil.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

namespace.c

proc: Split the namespace stuff out into linux/proc_ns.h

2013-05-01 17:29:39 -04:00

sem.c

ipc: remove unused functions

2013-07-09 10:33:27 -07:00

shm.c

ipc: move locking out of ipcctl_pre_down_nolock

2013-07-09 10:33:27 -07:00

syscall.c

get rid of union semop in sys_semctl(2) arguments

2013-03-05 15:14:16 -05:00

util.c

ipc/util.c, ipc_rcu_alloc: cacheline align allocation

2013-07-09 10:33:28 -07:00

util.h

ipc: close open coded spin lock calls

2013-07-09 10:33:27 -07:00