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| author | Takashi Iwai <tiwai@suse.de> | 2018-01-08 14:03:53 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-01-08 16:40:26 +0100 |
| commit | 900498a34a3ac9c611e9b425094c8106bdd7dc1c (patch) | |
| tree | 844ccba051c0491b8e7d74879e6a8d20f11c6e53 /drivers/firmware/dmi-sysfs.c | |
| parent | 29159a4ed7044c52e3e2cf1a9fb55cec4745c60b (diff) | |
| download | blackbird-obmc-linux-900498a34a3ac9c611e9b425094c8106bdd7dc1c.tar.gz blackbird-obmc-linux-900498a34a3ac9c611e9b425094c8106bdd7dc1c.zip | |
ALSA: pcm: Allow aborting mutex lock at OSS read/write loops
PCM OSS read/write loops keep taking the mutex lock for the whole
read/write, and this might take very long when the exceptionally high
amount of data is given. Also, since it invokes with mutex_lock(),
the concurrent read/write becomes unbreakable.
This patch tries to address these issues by replacing mutex_lock()
with mutex_lock_interruptible(), and also splits / re-takes the lock
at each read/write period chunk, so that it can switch the context
more finely if requested.
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/firmware/dmi-sysfs.c')
0 files changed, 0 insertions, 0 deletions
