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The commit25f9080576("f2fs: add async reset zone command support") introduced "async reset zone commands" by calling __submit_zone_reset_cmd() in async discard operations. However, __submit_zone_reset_cmd() is called regardless of zone type of discard target zone. When devices have conventional zones, zone reset commands are sent to the conventional zones and cause I/O errors. Avoid the I/O errors by checking that the discard target zone type is sequential write required. If not, handle the discard operation in same manner as non-zoned, regular block devices. For that purpose, add a new helper function f2fs_bdev_index() which gets index of the zone reset target device. Fixes:25f9080576("f2fs: add async reset zone command support") Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Reviewed-by: Chao Yu <chao@kernel.org> 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.