linux-kernel - [PATCH] ipc/mqueue: simplify reading msgqueue limit

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Date:	Thu, 03 Nov 2011 15:31:49 -0300
From:	Davidlohr Bueso <dave@....org>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Slaby <jslaby@...e.cz>,
	Wanlong Gao <gaowanlong@...fujitsu.com>,
	Nick Piggin <npiggin@...nel.dk>
Cc:	lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH] ipc/mqueue: simplify reading msgqueue limit

From: Davidlohr Bueso <dave@....org>

Because the current task is being used to get the limit, we can simply use rlimit() instead of task_rlimit().

Signed-off-by: Davidlohr Bueso <dave@....org>
---
 ipc/mqueue.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 2e0ecfc..c0e4fbb 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -127,7 +127,6 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
 
 	if (S_ISREG(mode)) {
 		struct mqueue_inode_info *info;
-		struct task_struct *p = current;
 		unsigned long mq_bytes, mq_msg_tblsz;
 
 		inode->i_fop = &mqueue_file_operations;
@@ -158,7 +157,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
 
 		spin_lock(&mq_lock);
 		if (u->mq_bytes + mq_bytes < u->mq_bytes ||
-		    u->mq_bytes + mq_bytes > task_rlimit(p, RLIMIT_MSGQUEUE)) {
+		    u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) {
 			spin_unlock(&mq_lock);
 			/* mqueue_evict_inode() releases info->messages */
 			ret = -EMFILE;
-- 
1.7.4.1



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