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ec680c1990
In the discussion about preempt count consistency across kernel configurations: https://lore.kernel.org/r/20200914204209.256266093@linutronix.de/ it was concluded that the usage of in_interrupt() and related context checks should be removed from non-core code. Both BUG_ON()s in ide-probe.c were introduced in commit 4015c949fb465 ("[PATCH] update ide core") when ide_unregister() was extended with semaphore based locking. Both checks won't complain about disabled preemption which is also wrong. The might_sleep() in today's mutex_lock() will complain about the missuses. Remove the BUG_ON() statements. Link: https://lkml.kernel.org/r/20201120092421.1023428-3-bigeasy@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Jens Axboe <axboe@kernel.dk> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| README | ||
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.