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dm_zone_get_reset_bitmap() is used to generate a bitmap of the zones of
a zoned device target when a REQ_OP_ZONE_RESET_ALL request is being
processed. This bitmap is built by executing a zone report with a report
callback set to the function dm_zone_need_reset_cb() in struct
dm_report_zones_args. However, the cb callback pointer is not anymore
the same as the callback specified by callers of the
blkdev_report_zones() function. Rather, this is a DM internal callback
and report zones callback functions from blkdev_report_zones() are
passed using struct blk_report_zones_args, introduced with commit
db9aed869f34 ("block: introduce disk_report_zone()").
This commit changed the DM main report zones callback handler function
dm_report_zones_cb() to call the new disk_report_zone() so that callback
functions from blkdev_report_zones() are executed, and this change
resulted in the DM internal dm_zone_need_reset_cb() callback function to
not be executed anymore, turning any REQ_OP_ZONE_RESET_ALL request into
a no-op.
Fix this by calling in dm_report_zones_cb() the DM internal cb function
specified in struct dm_report_zones_args.
Fixes: db9aed869f34 ("block: introduce disk_report_zone()").
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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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 reStructuredText 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.