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ext4: fix race in ext4_mb_add_n_trim()
authorNiu Yawei <yawei.niu@gmail.com>
Sat, 2 Feb 2013 02:31:27 +0000 (21:31 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Sat, 2 Feb 2013 02:31:27 +0000 (21:31 -0500)
In ext4_mb_add_n_trim(), lg_prealloc_lock should be taken when
changing the lg_prealloc_list.

Signed-off-by: Niu Yawei <yawei.niu@intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org

No differences found
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