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8d30cc05011b54f6092b89d2b8aafe546320683d
If free blocks hole is smaller than discard_granularity,
TRIM to this range can be skipped.
Fix this by changing the granularity to 4kb at dm-bow layer,
not to skip TRIM to every tiny free blocks.
Bug: 154411183
Signed-off-by: hyeongseok.kim <hyeongseok@gmail.com>
Cc: hyeongseok.kim <hyeongseok.kim@lge.com>
Change-Id: Ic7c33d94a016d0ad5a75514eae1056c328c9c1ba
(cherry picked from commit ca986e448c)
Signed-off-by: Paul Lawrence <paullawrence@google.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.
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