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1757598ffa
Fix the unnecessary periodic wakeups of discard thread that happens under below two conditions - 1. When f2fs is heavily utilized over 80%, the current discard policy sets the max sleep timeout of discard thread as 50ms (DEF_MIN_DISCARD_ISSUE_TIME). But this is set even when there are no pending discard commands to be issued. 2. In the issue_discard_thread() path when there are no pending discard commands, it fails to reset the wait_ms to max timeout value. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.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.