Re: [PATCH] kmemcheck: Test the full object in kmemcheck_is_obj_initialized()

[Pekka Enberg]

Catalin Marinas wrote:
> 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@xxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Christian Casteyde <casteyde.christian@xxxxxxx>
> Cc: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
> Cc: Vegard Nossum <vegardno@xxxxxxxxxx>

Applied to slab.git.
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