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authorRafał Miłecki <rafal@milecki.pl>2017-01-28 14:31:22 +0100
committerKalle Valo <kvalo@codeaurora.org>2017-01-31 09:27:09 +0200
commita971df0b9d04674e325346c17de9a895425ca5e1 (patch)
treeeda823e66ba32740c28a8ce4113b27caaa969423 /sound/soc/codecs/tlv320aic26.c
parent2a2a5d1835b6f0baa0e207426d3c79eefd32e253 (diff)
bcma: use (get|put)_device when probing/removing device driver
This allows tracking device state and e.g. makes devm work as expected. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'sound/soc/codecs/tlv320aic26.c')
0 files changed, 0 insertions, 0 deletions
ue lock. It may be set when there are no tasks on the waitqueue, which will cause a harmless extra wakeup check that will clears the bit. The generic bit-waitqueue infrastructure is no longer used for pages. Instead, waitqueues are used directly with a custom key type. The generic code was not flexible enough to have PageWaiters manipulation under the waitqueue lock (which simplifies concurrency). This improves the performance of page lock intensive microbenchmarks by 2-3%. Putting two bits in the same word opens the opportunity to remove the memory barrier between clearing the lock bit and testing the waiters bit, after some work on the arch primitives (e.g., ensuring memory operand widths match and cover both bits). Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Bob Peterson <rpeterso@redhat.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Andrew Lutomirski <luto@kernel.org> Cc: Andreas Gruenbacher <agruenba@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/timers')