diff options
| author | Eugene Surovegin | 2006-03-28 10:13:12 -0800 |
|---|---|---|
| committer | Paul Mackerras | 2006-03-29 13:44:15 +1100 |
| commit | bab70a4af737f623de5b034976a311055308ab86 (patch) | |
| tree | f8c0e9463de01323db2cb1a62f4eb83adb5ce7ca /kernel/sys.c | |
| parent | bac30d1a78d0f11c613968fc8b351a91ed465386 (diff) | |
[PATCH] lock PTE before updating it in 440/BookE page fault handler
Fix 44x and BookE page fault handler to correctly lock PTE before
trying to pte_update() it, otherwise this PTE might be swapped out
after pte_present() check but before pte_uptdate() call, resulting in
corrupted PTE. This can happen with enabled preemption and low memory
condition.
Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'kernel/sys.c')
0 files changed, 0 insertions, 0 deletions