slab: Fix missing DEBUG_SLAB last user

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Even with SLAB_RED_ZONE and SLAB_STORE_USER enabled, kernel would NOT store
redzone and last user data around allocated memory space if "arch cache line >
sizeof(unsigned long long)". As a result, last user information is unexpectedly
MISSED while dumping slab corruption log.

This fix makes sure that redzone and last user tags get stored unless the
required alignment breaks redzone's.

Signed-off-by: Shiyong Li <shi-yong.li@motorola.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

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Shiyong Li 2010-04-12 13:48:21 +08:00 • committed by Pekka Enberg

parent 0d0fb0f9c5

commit 5c5e3b33b7

1 changed files with 4 additions and 4 deletions

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mm/slab.c

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