From: Vladimir Murzin <murzin.v@gmail.com>
To: linux-arch@vger.kernel.org
Cc: tglx@linutronix.de, davem@davemloft.net, lethal@linux-sh.org,
linux@arm.linux.org.uk, Vladimir Murzin <murzin.v@gmail.com>
Subject: [PATCH 1/6] get_unmapped_area checks for TASK_SIZE before MAP_FIXED on arm
Date: Tue, 8 May 2012 18:40:17 +0400 [thread overview]
Message-ID: <1336488022-3723-2-git-send-email-murzin.v@gmail.com> (raw)
In-Reply-To: <1336488022-3723-1-git-send-email-murzin.v@gmail.com>
Move check for TASK_SIZE before MAP_FIXED in arm's arch_get_unmapped_area().
Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
---
arch/arm/mm/mmap.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index ce8cb19..288cc5f 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -80,6 +80,9 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
if (aliasing)
do_align = filp || (flags & MAP_SHARED);
+ if (len > TASK_SIZE)
+ return -ENOMEM;
+
/*
* We enforce the MAP_FIXED case.
*/
@@ -90,9 +93,6 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
- if (len > TASK_SIZE)
- return -ENOMEM;
-
if (addr) {
if (do_align)
addr = COLOUR_ALIGN(addr, pgoff);
--
1.7.2.5
next prev parent reply other threads:[~2012-05-08 14:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-08 14:40 [PATCH 0/6] get rid of extra check for TASK_SIZE in get_unmapped_area Vladimir Murzin
2012-05-08 14:40 ` Vladimir Murzin [this message]
2012-05-08 14:40 ` [PATCH 2/6] get_unmapped_area checks for TASK_SIZE before MAP_FIXED on sh Vladimir Murzin
2012-05-08 14:40 ` [PATCH 3/6] get_unmapped_area checks for TASK_SIZE before MAP_FIXED on sparc32 Vladimir Murzin
2012-05-08 16:27 ` Sam Ravnborg
2012-05-09 8:07 ` Vladimir Murzin
2012-05-09 16:18 ` Sam Ravnborg
2012-05-09 18:04 ` Vladimir Murzin
2012-05-08 17:00 ` David Miller
2012-05-08 14:40 ` [PATCH 4/6] get_unmapped_area checks for TASK_SIZE before MAP_FIXED on sparc64 Vladimir Murzin
2012-05-08 17:00 ` David Miller
2012-05-08 14:40 ` [PATCH 5/6] get_unmapped_area checks for TASK_SIZE before MAP_FIXED on x86_64 Vladimir Murzin
2012-05-08 14:40 ` [PATCH 6/6] get_unmapped_area remove extra check for TASK_SIZE Vladimir Murzin
2012-05-09 16:26 ` [PATCH 0/6] get rid of extra check for TASK_SIZE in get_unmapped_area Russell King - ARM Linux
2012-05-09 17:56 ` Vladimir Murzin
2012-05-09 18:07 ` Russell King - ARM Linux
2012-05-10 3:01 ` Vladimir Murzin
2012-05-10 7:55 ` Russell King - ARM Linux
2012-05-10 18:08 ` Vladimir Murzin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1336488022-3723-2-git-send-email-murzin.v@gmail.com \
--to=murzin.v@gmail.com \
--cc=davem@davemloft.net \
--cc=lethal@linux-sh.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).