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GFS2: Fix unsafe dereference in dump_holder()
authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Thu, 2 Jan 2014 10:52:20 +0000 (19:52 +0900)
committerSteven Whitehouse <swhiteho@redhat.com>
Thu, 2 Jan 2014 12:18:04 +0000 (12:18 +0000)
commit55b2cd755d1b73b408b38cbc3a8e61478e548a96
treeb5c0d6cee7f88e7d6dfc99afc51ec2be066906a8tree | snapshot
parent8076ec45ce06e1ebbc6610cf5ce1631445089f6fcommit | diff
GFS2: Fix unsafe dereference in dump_holder()

GLOCK_BUG_ON() might call this function without RCU read lock. Make sure that
RCU read lock is held when using task_struct returned from pid_task().

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
fs/gfs2/glock.c diff | blob | history
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