da1895f731
[ Upstream commit 6920b3913235f517728bb69abe9b39047a987113 ] There is no functional change in this patch but just split the codes, which serachs free block and does trim, into a new function ext4_try_to_trim_range. This is preparing for the following async backgroup discard. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Wang Jianchao <wangjianchao@kuaishou.com> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20210724074124.25731-3-jianchao.wan9@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu> Stable-dep-of: 45e4ab320c9b ("ext4: move setting of trimmed bit into ext4_try_to_trim_range()") Signed-off-by: Sasha Levin <sashal@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.