The patch titled
mqueue: apply mathematics distributivity on mq_bytes calculation
has been added to the -mm tree. Its filename is
mqueue-apply-mathematics-distributivity-on-mq_bytes-calculation.patch
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------------------------------------------------------
Subject: mqueue: apply mathematics distributivity on mq_bytes calculation
From: André Goddard Rosa <andre.goddard@xxxxxxxxx>
Code size reduction:
text data bss dec hex filename
9941 72 16 10029 272d ipc/mqueue-BEFORE.o
9925 72 16 10013 271d 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 | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff -puN ipc/mqueue.c~mqueue-apply-mathematics-distributivity-on-mq_bytes-calculation ipc/mqueue.c
--- a/ipc/mqueue.c~mqueue-apply-mathematics-distributivity-on-mq_bytes-calculation
+++ a/ipc/mqueue.c
@@ -261,8 +261,9 @@ static void mqueue_delete_inode(struct i
clear_inode(inode);
- mq_bytes = (info->attr.mq_maxmsg * sizeof(struct msg_msg *) +
- (info->attr.mq_maxmsg * info->attr.mq_msgsize));
+ /* Total amount of bytes accounted for the mqueue */
+ mq_bytes = info->attr.mq_maxmsg * (sizeof(struct msg_msg *)
+ + info->attr.mq_msgsize);
user = info->user;
if (user) {
spin_lock(&mq_lock);
@@ -601,8 +602,8 @@ static int mq_attr_ok(struct ipc_namespa
/* check for overflow */
if (attr->mq_msgsize > ULONG_MAX/attr->mq_maxmsg)
return 0;
- if ((unsigned long)(attr->mq_maxmsg * attr->mq_msgsize) +
- (attr->mq_maxmsg * sizeof (struct msg_msg *)) <
+ if ((unsigned long)(attr->mq_maxmsg * (attr->mq_msgsize
+ + sizeof (struct msg_msg *))) <
(unsigned long)(attr->mq_maxmsg * attr->mq_msgsize))
return 0;
return 1;
_
Patches currently in -mm which might be from andre.goddard@xxxxxxxxx are
linux-next.patch
mqueue-fix-mq_open-file-descriptor-leak-on-user-space-processes.patch
mqueue-remove-unneeded-info-messages-initialization.patch
mqueue-apply-mathematics-distributivity-on-mq_bytes-calculation.patch
mqueue-simplify-do_open-error-handling.patch
mqueue-only-set-error-codes-if-they-are-really-necessary.patch
mqueue-fix-typo-failues-failures.patch
lib-stringc-simplify-stricmp.patch
lib-stringc-simplify-strnstr.patch
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