On 11/4/25 02:31, Damien Le Moal wrote:
Modify btrfs_get_dev_zones() and btrfs_sb_log_location_bdev() to replace
the call to blkdev_report_zones() with blkdev_report_zones_cached() to
speed-up mount operations. btrfs_get_dev_zone_info() is also modified to
take into account the BLK_ZONE_COND_ACTIVE condition, which is
equivalent to either BLK_ZONE_COND_IMP_OPEN, BLK_ZONE_COND_EXP_OPEN or
BLK_ZONE_COND_CLOSED.
With this change, mounting a freshly formatted large capacity (30 TB)
SMR HDD completes under 100ms compared to over 1.8s before.
Signed-off-by: Damien Le Moal <[email protected]>
Acked-by: David Sterba <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
---
fs/btrfs/zoned.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
Reviewed-by: Hannes Reinecke <[email protected]>
Cheers,
hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
[email protected] +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
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