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authorBen Skeggs <bskeggs@redhat.com>2017-01-24 09:32:26 +1000
committerBen Skeggs <bskeggs@redhat.com>2017-01-31 20:05:26 +1000
commit2b5078937355c0d662ecef54b7d4d04f48da4fa9 (patch)
tree9e75490ab352bf7d2e4a689ee761656d3dafc7d1 /net/mac80211/debugfs_sta.h
parent24bf7ae359b8cca165bb30742d2b1c03a1eb23af (diff)
drm/nouveau/kms/nv50: request vblank events for commits that send completion events
This somehow fixes an issue where sync-to-vblank longer works correctly after resume from suspend. From a HW perspective, we don't need the IRQs turned on to be able to detect flip completion, so it's assumed that this is required for the voodoo in the core DRM vblank core. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'net/mac80211/debugfs_sta.h')
0 files changed, 0 insertions, 0 deletions
1e0 vfs_write+0xd0/0x270 SyS_write+0x6c/0x110 system_call+0x38/0xe0 Examination of the queue showed a single reference (no PERCPU_COUNT_BIAS, and __PERCPU_REF_DEAD, __PERCPU_REF_ATOMIC set) and no requests. However, conditions at the time of the race are count of PERCPU_COUNT_BIAS + 0 and __PERCPU_REF_DEAD and __PERCPU_REF_ATOMIC set. The fix is to make the tryget routines use an actual boolean internally instead of the atomic long result truncated to a int. Fixes: e625305b3907 percpu-refcount: make percpu_ref based on longs instead of ints Link: https://bugzilla.kernel.org/show_bug.cgi?id=190751 Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com> Reviewed-by: Jens Axboe <axboe@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: e625305b3907 ("percpu-refcount: make percpu_ref based on longs instead of ints") Cc: stable@vger.kernel.org # v3.18+
Diffstat (limited to 'drivers/usb/gadget')