[PATCH 12/14] resource limits: track highwater mark of size of message queues

[Topi Miettinen]

Track maximum size of message queues, to be able to configure
RLIMIT_MSGQUEUE resource limits. The information is available
with taskstats and cgroupstats netlink socket.

Signed-off-by: Topi Miettinen <toiwo...@gmail.com>
---
 ipc/mqueue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index ade739f..037ea47 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -287,6 +287,7 @@ static struct inode *mqueue_get_inode(struct super_block 
*sb,
 
                /* all is ok */
                info->user = get_uid(u);
+               update_resource_highwatermark(RLIMIT_MSGQUEUE, u->mq_bytes);
        } else if (S_ISDIR(mode)) {
                inc_nlink(inode);
                /* Some things misbehave if size == 0 on a directory */
-- 
2.8.1