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| Filename | Latest commit message | Latest commit date |
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d143b3d1cd
In !use_softirq runs, we clearly cannot rely on raise_softirq() and its lightweight bit setting, so we must instead do some form of wakeup. In the absence of a self-IPI when interrupts are disabled, these wakeups can be delayed until the next interrupt occurs. This means that calling invoke_rcu_core() doesn't actually do any expediting. In this case, it is better to take the "else" clause, which sets the current CPU's resched bits and, if there is an expedited grace period in flight, uses IRQ-work to force the needed self-IPI. This commit therefore removes the "else if" clause that calls invoke_rcu_core(). Reported-by: Scott Wood <swood@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com> |
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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.