audit: Fix sleep in atomic

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Audit tree code was happily adding new notification marks while holding
spinlocks. Since fsnotify_add_mark() acquires group->mark_mutex this can
lead to sleeping while holding a spinlock, deadlocks due to lock
inversion, and probably other fun. Fix the problem by acquiring
group->mark_mutex earlier.

CC: Paul Moore <paul@paul-moore.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Paul Moore <paul@paul-moore.com>

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Jan Kara 2016-12-14 14:40:05 +01:00 • committed by Paul Moore

parent e3ba730702

commit be29d20f3f

1 changed files with 14 additions and 4 deletions

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kernel/audit_tree.c

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