diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2010-02-08 11:16:24 +0000 |
|---|---|---|
| committer | Pekka Enberg <penberg@cs.helsinki.fi> | 2010-02-17 21:39:08 +0200 |
| commit | 81fc03909a80bead8f553287a2b749a1d29dca64 (patch) | |
| tree | 6c62a780be628ea551bf1e5854260ce94608c521 /arch/x86/mm/kmemcheck/shadow.h | |
| parent | 724e6d3fe8003c3f60bf404bf22e4e331327c596 (diff) | |
kmemcheck: Test the full object in kmemcheck_is_obj_initialized()
This is a fix for bug #14845 (bugzilla.kernel.org). The update_checksum()
function in mm/kmemleak.c calls kmemcheck_is_obj_initialised() before scanning
an object. When KMEMCHECK_PARTIAL_OK is enabled, this function returns true.
However, the crc32_le() reads smaller intervals (32-bit) for which
kmemleak_is_obj_initialised() may be false leading to a kmemcheck warning.
Note that kmemcheck_is_obj_initialized() is currently only used by
kmemleak before scanning a memory location.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christian Casteyde <casteyde.christian@free.fr>
Cc: Vegard Nossum <vegardno@ifi.uio.no>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'arch/x86/mm/kmemcheck/shadow.h')
| -rw-r--r-- | arch/x86/mm/kmemcheck/shadow.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/mm/kmemcheck/shadow.h b/arch/x86/mm/kmemcheck/shadow.h index af46d9ab9d8..ff0b2f70fbc 100644 --- a/arch/x86/mm/kmemcheck/shadow.h +++ b/arch/x86/mm/kmemcheck/shadow.h @@ -11,6 +11,8 @@ enum kmemcheck_shadow { void *kmemcheck_shadow_lookup(unsigned long address); enum kmemcheck_shadow kmemcheck_shadow_test(void *shadow, unsigned int size); +enum kmemcheck_shadow kmemcheck_shadow_test_all(void *shadow, + unsigned int size); void kmemcheck_shadow_set(void *shadow, unsigned int size); #endif |