jbd2: use kmem_cache_zalloc for allocating journal head
authorZheng Liu <wenqing.lz@taobao.com>
Tue, 28 May 2013 11:27:11 +0000 (07:27 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Tue, 28 May 2013 11:27:11 +0000 (07:27 -0400)
This commit tries to use kmem_cache_zalloc instead of kmem_cache_alloc/
memset when a new journal head is alloctated.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>

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