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Takashi Iwai ecb41f0f44 ALSA: pcm: Remove down_write() hack for snd_pcm_link_rwsem
Remove the hackish down_write_nonfifo() that was introduced as a
workaround of rwsem deadlock.

It used to be a problem for non-atomic PCM streams that take the rwsem
for the locking and hit the high lock contention.  Since the current
PCM locking refactoring, we'll no longer hit it as the hot code-paths
don't take global locks.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-01-23 07:40:49 +01:00
arch
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include ALSA: pcm: More fine-grained PCM link locking 2019-01-23 07:25:08 +01:00
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sound ALSA: pcm: Remove down_write() hack for snd_pcm_link_rwsem 2019-01-23 07:40:49 +01:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.