[PATCH v3 01/15] block: handle zone management operations completions

[Hannes Reinecke]

On 11/4/25 02:31, Damien Le Moal wrote:
> The functions blk_zone_wplug_handle_reset_or_finish() and
> blk_zone_wplug_handle_reset_all() both modify the zone write pointer
> offset of zone write plugs that are the target of a reset, reset all or
> finish zone management operation. However, these functions do this
> modification before the BIO is executed. So if the zone operation fails,
> the modified zone write pointer offsets become invalid.
> 
> Avoid this by modifying the zone write pointer offset of a zone write
> plug that is the target of a zone management operation when the
> operation completes. To do so, modify blk_zone_bio_endio() to call the
> new function blk_zone_mgmt_bio_endio() which in turn calls the functions
> blk_zone_reset_all_bio_endio(), blk_zone_reset_bio_endio() or
> blk_zone_finish_bio_endio() depending on the operation of the completed
> BIO, to modify a zone write plug write pointer offset accordingly.
> These functions are called only if the BIO execution was successful.
> 
> Fixes: dd291d77cc90 ("block: Introduce zone write plugging")
> Cc: stable at vger.kernel.org
> Signed-off-by: Damien Le Moal <dlemoal at kernel.org>
> Reviewed-by: Christoph Hellwig <hch at lst.de>
> Reviewed-by: Johannes Thumshirn <johannes.thumshirn at wdc.com>
> ---
>   block/blk-zoned.c | 139 ++++++++++++++++++++++++++++++----------------
>   block/blk.h       |  14 +++++
>   2 files changed, 104 insertions(+), 49 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare at suse.de                                +49 911 74053 688
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