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(parent: e781a9a) | patch
mm: kmemleak: do not acquire scan_mutex in kmemleak_do_cleanup()
authorCatalin Marinas <catalin.marinas@arm.com>
Wed, 24 Jun 2015 23:58:31 +0000 (16:58 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 25 Jun 2015 00:49:45 +0000 (17:49 -0700)
commit5f369f374ba4889fe3c17883402db5ee8d254216
tree984086416ed58cc61811fd4f277511b8f720ed1atree | snapshot
parente781a9ab4847a81224667f5faab0b2bc5f78908fcommit | diff
mm: kmemleak: do not acquire scan_mutex in kmemleak_do_cleanup()

The kmemleak_do_cleanup() work thread already waits for the kmemleak_scan
thread to finish via kthread_stop().  Waiting in kthread_stop() while
scan_mutex is held may lead to deadlock if kmemleak_scan_thread() also
waits to acquire for scan_mutex.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/kmemleak.c diff | blob | history
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