| commit | aa45ee8fc0ee87c1711b5fe8eb3556d06530c39e | |
| author | Russell King <rmk+kernel@arm.linux.org.uk> | |
| Mon, 28 Sep 2009 10:41:51 +0000 (28 11:41 +0100) | ||
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | |
| Mon, 28 Sep 2009 17:06:21 +0000 (28 18:06 +0100) | ||
| tree | 4fd5a65dd1dda67ba8e2c4857bf1c7f5c19edaf8 | treesnapshot (tar.gz zip) |
| parent | 90140c30a7b8c77e8872a389d48678d78e58789f | commitdiff |
ARM: Ensure do_cache_op takes mmap_sem
do_cache_op() uses find_vma() to validate its arguments without holding
any locking. This means that the VMA could vanish beneath us. Fix
this by taking a read lock on mmap_sem.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
do_cache_op() uses find_vma() to validate its arguments without holding
any locking. This means that the VMA could vanish beneath us. Fix
this by taking a read lock on mmap_sem.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| arch/arm/kernel/traps.c | diffblobblamehistory |