The patch titled
mqueue: remove unneeded info->messages initialization
has been removed from the -mm tree. Its filename was
mqueue-remove-unneeded-info-messages-initialization.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mqueue: remove unneeded info->messages initialization
From: André Goddard Rosa <andre.goddard@xxxxxxxxx>
... and abort earlier if we couldn't allocate the message pointers array,
avoiding the u->mq_bytes accounting logic.
It reduces code size:
text data bss dec hex filename
9949 72 16 10037 2735 ipc/mqueue-BEFORE.o
9941 72 16 10029 272d ipc/mqueue-AFTER.o
Signed-off-by: André Goddard Rosa <andre.goddard@xxxxxxxxx>
Cc: Serge E. Hallyn <serue@xxxxxxxxxx>
Cc: Cedric Le Goater <clg@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
ipc/mqueue.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff -puN ipc/mqueue.c~mqueue-remove-unneeded-info-messages-initialization ipc/mqueue.c
--- a/ipc/mqueue.c~mqueue-remove-unneeded-info-messages-initialization
+++ a/ipc/mqueue.c
@@ -134,7 +134,6 @@ static struct inode *mqueue_get_inode(st
init_waitqueue_head(&info->wait_q);
INIT_LIST_HEAD(&info->e_wait_q[0].list);
INIT_LIST_HEAD(&info->e_wait_q[1].list);
- info->messages = NULL;
info->notify_owner = NULL;
info->qsize = 0;
info->user = NULL; /* set when all is ok */
@@ -146,6 +145,10 @@ static struct inode *mqueue_get_inode(st
info->attr.mq_msgsize = attr->mq_msgsize;
}
mq_msg_tblsz = info->attr.mq_maxmsg * sizeof(struct msg_msg *);
+ info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL);
+ if (!info->messages)
+ goto out_inode;
+
mq_bytes = (mq_msg_tblsz +
(info->attr.mq_maxmsg * info->attr.mq_msgsize));
@@ -154,18 +157,12 @@ static struct inode *mqueue_get_inode(st
u->mq_bytes + mq_bytes >
p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur) {
spin_unlock(&mq_lock);
+ kfree(info->messages);
goto out_inode;
}
u->mq_bytes += mq_bytes;
spin_unlock(&mq_lock);
- info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL);
- if (!info->messages) {
- spin_lock(&mq_lock);
- u->mq_bytes -= mq_bytes;
- spin_unlock(&mq_lock);
- goto out_inode;
- }
/* all is ok */
info->user = get_uid(u);
} else if (S_ISDIR(mode)) {
_
Patches currently in -mm which might be from andre.goddard@xxxxxxxxx are
origin.patch
linux-next.patch
includecheck-fix-for-kernel-paramsc.patch
lib-stringc-simplify-stricmp.patch
lib-stringc-simplify-strnstr.patch
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