Re: [PATCH] ipc/mqueue: simplify reading msgqueue limit

From: Davidlohr Bueso
Date: Mon Nov 07 2011 - 17:16:08 EST


ping?

On Thu, 2011-11-03 at 15:31 -0300, Davidlohr Bueso wrote:
> From: Davidlohr Bueso <dave@xxxxxxx>
>
> 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@xxxxxxx>
> ---
> 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;


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