linux/ipc
Eric W. Biederman bc1fc6d88c [PATCH] ipc: save the ipc namespace while reading proc files
The problem we were assuming that current->nsproxy->ipc_ns would never
change while someone has our file in /proc/sysvipc/ file open.  Given that
this can change with both unshare and by passing the file descriptor to
another process that assumption is occasionally wrong.

Therefore this patch causes /proc/sysvipc/* to cache the namespace and
increment it's count when we open the file and to decrement the count when
we close the file, ensuring consistent operation with no surprises.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Serge E. Hallyn <serue@us.ibm.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Kirill Korotaev <dev@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:29 -08:00
..
compat_mq.c
compat.c
Makefile
mqueue.c
msg.c
msgutil.c
sem.c
shm.c [PATCH] correct sys_shmget allocation check 2007-01-23 11:18:50 -08:00
util.c [PATCH] ipc: save the ipc namespace while reading proc files 2007-02-12 09:48:29 -08:00
util.h