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e4b7254c75
There was a lost wakeup between a read unlock in percpu mode and a write lock. The unlock path unlocks, then executes a barrier, then checks for waiters; correspondingly, the lock side should set the wait bit and execute a barrier, then attempt to take the lock. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
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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
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the problems which may result by upgrading your kernel.