a2b0b41619
Tasklets have long been deprecated as being too heavy on the system by running in irq context - and this is not a performance critical path. If a higher priority process wants to run, it must wait for the tasklet to finish before doing so. The execution of the SME event will now occur in task context. There are, however, changes in concurrency. Workqueues, unlike tasklets, are not serialized among themselves and can run concurrently updating sme_i.qhead. However, the current code is already exposed in same ways, regardless of the deferral mechanism, in that hostif_sme_enqueue() does unserialized enqueues updating sme_i.qtail. Also get rid of the bogus (power save) tasklet enabling, as it is never disabled to begin with. Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Link: https://lore.kernel.org/r/20220411151620.129178-5-dave@stgolabs.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.