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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)
committerPaul Gortmaker <paul.gortmaker@windriver.com>
Mon, 10 Feb 2014 21:11:30 +0000 (16:11 -0500)
commit1adc9064553cd3efd382d49e3198988af5462c29
treea902a92c05a81eb92397d115cb27a92bc7e2d58dtree
parent0fd8d8773fd8c2a136efbc0f0e705e51ee181be9commit | diff
ext4: fix race in ext4_mb_add_n_trim()

commit f1167009711032b0d747ec89a632a626c901a1ad upstream.

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>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
fs/ext4/mballoc.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git