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authorIngo Molnar <mingo@kernel.org>2016-11-03 07:16:43 +0100
committerIngo Molnar <mingo@kernel.org>2016-11-03 07:21:12 +0100
commitc7faee2109f978f3ef826c48b7e60609061fda4f (patch)
treed7228d7eeda57462d253ef362d3d5e24932880d1 /arch/cris
parentb341afb325eb390f707a82cbefd65cda887302ab (diff)
downloadlinux-c7faee2109f978f3ef826c48b7e60609061fda4f.tar.bz2
locking/drm: Fix i915_gem_shrinker_lock() locking
Mike Krinkin reported hangs in the DRM code and bisected it to: 3ab7c086d5ec72585ef0 ("locking/drm: Kill mutex trickery") Hugh Dickins observed: "i915_gem_shrinker_lock() is broken: but copy the pattern from msm_gem_shrinker_lock() and it's okay - patch below." Pick up the fix in isolation to make sure the bug is fixed, cleanup patch will follow up. Originally-From: Hugh Dickins <hughd@google.com> Reported-by: Hugh Dickins <hughd@google.com> Reported-by: Mike Krinkin <krinkin.m.u@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dave Airlie <airlied@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: chris@chris-wilson.co.uk Cc: jason.low2@hpe.com Link: http://lkml.kernel.org/r/alpine.LSU.2.11.1610301645180.28429@eggly.anvils Signed-off-by: Ingo Molnar <mingo@kernel.org>
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