Re: [PATCH 14/26] null_blk: Introduce zone_append_max_sectors attribute

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On 2/2/24 15:30, Damien Le Moal wrote:
Add the zone_append_max_sectors configfs attribute and module parameter
to allow configuring the maximum number of 512B sectors of zone append
operations. This attribute is meaningful only for zoned null block

If not specified, the default is unchanged and the zoned device max
append sectors limit is set to the device max sectors limit.
If a non 0 value is used for this attribute, which is the default,
then native support for zone append operations is enabled.
Setting a 0 value disables native zone append operations support to
instead use the block layer emulation.

null_submit_bio() is modified to use blk_zone_write_plug_bio() to
handle zone append emulation if that is enabled.

Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
  drivers/block/null_blk/main.c     | 40 +++++++++++++++++++++----------
  drivers/block/null_blk/null_blk.h |  1 +
  drivers/block/null_blk/zoned.c    | 31 ++++++++++++++++++------
  3 files changed, 52 insertions(+), 20 deletions(-)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>


Dr. Hannes Reinecke                Kernel Storage Architect
hare@xxxxxxx                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), GF: Ivo Totev, Andrew McDonald,
Werner Knoblich

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]

  Powered by Linux