diff options
| author | Jon Medhurst <tixy@linaro.org> | 2013-12-05 14:29:24 +0000 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2013-12-05 15:09:30 +0000 |
| commit | c7f6c4257b883fc2d76b12cc8904994665760dc8 (patch) | |
| tree | 6cecbed7a465c6d61430ada649718705b71c6787 | |
| parent | c59ea19258eed520acef080c58d17ca9b5b3af81 (diff) | |
ARM: cacheflush: correctly limit range of memory region being flushedtracking-integration-linaro-vexpress-ll-20131206.0tracking-integration-linaro-vexpress-ll-20131205.0
The __do_cache_op function operates with a 'chunk' size of one page
but fails to limit the size of the final chunk so as to not exceed
the specified memory region. Fix this.
Signed-off-by: Jon Medhurst <tixy@linaro.org>
| -rw-r--r-- | arch/arm/kernel/traps.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index dbf0923e8d76..7940241f0576 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -509,9 +509,10 @@ static inline int __do_cache_op(unsigned long start, unsigned long end) { int ret; - unsigned long chunk = PAGE_SIZE; do { + unsigned long chunk = min(PAGE_SIZE, end - start); + if (signal_pending(current)) { struct thread_info *ti = current_thread_info(); |