Serge E. Hallyn a0dffef321 ipc ns: fix memory leak (idr) ...

commit 7d6feeb287 upstream.

We have apparently had a memory leak since
7ca7e564e0 "ipc: store ipcs into IDRs" in
2007.  The idr of which 3 exist for each ipc namespace is never freed.

This patch simply frees them when the ipcns is freed.  I don't believe any
idr_remove() are done from rcu (and could therefore be delayed until after
this idr_destroy()), so the patch should be safe.  Some quick testing
showed no harm, and the memory leak fixed.

Caught by kmemleak.

Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2010-01-28 15:02:25 -08:00

..

compat_mq.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

compat.c

fix logic error in ipc compat semctl()

2007-07-06 10:23:43 -07:00

ipc_sysctl.c

sysctl: remove "struct file *" argument of ->proc_handler

2009-09-24 07:21:04 -07:00

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: remove "struct file *" argument of ->proc_handler

2009-09-24 07:21:04 -07:00

mqueue.c

const: mark remaining super_operations const

2009-09-22 07:17:24 -07:00

msg.c

ipc ns: fix memory leak (idr)

2010-01-28 15:02:25 -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 ns: fix memory leak (idr)

2010-01-28 15:02:25 -08:00

shm.c

ipc ns: fix memory leak (idr)

2010-01-28 15:02:25 -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