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 5/6] get_unmapped_area checks for TASK_SIZE before MAP_FIXED on x86_64
Date: Tue, 8 May 2012 18:40:21 +0400 [thread overview]
Message-ID: <1336488022-3723-6-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 x86_64's arch_get_unmapped_area().
Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
---
arch/x86/kernel/sys_x86_64.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 0514890..1988a9f 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -129,14 +129,14 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
unsigned long start_addr;
unsigned long begin, end;
- if (flags & MAP_FIXED)
- return addr;
-
find_start_end(flags, &begin, &end);
if (len > end)
return -ENOMEM;
+ if (flags & MAP_FIXED)
+ return addr;
+
if (addr) {
addr = PAGE_ALIGN(addr);
vma = find_vma(mm, addr);
--
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 ` [PATCH 1/6] get_unmapped_area checks for TASK_SIZE before MAP_FIXED on arm Vladimir Murzin
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 ` Vladimir Murzin [this message]
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
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