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| author |   Damien Le Moal <damien.lemoal@wdc.com> | 2017-05-08 15:48:19 +0900 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2017-05-11 23:11:49 -0400 |
| commit | ed44fd7fd8a6785b73cfc6d44594c434e578d724 (patch) | |
| tree | 189581b28758c7b9ce23e3b6caf038f8d7478c1b /drivers/scsi | |
| parent | scsi: sd: Unlock zone in case of error in sd_setup_write_same_cmnd() (diff) | |
| download | linux-dev-ed44fd7fd8a6785b73cfc6d44594c434e578d724.tar.xz linux-dev-ed44fd7fd8a6785b73cfc6d44594c434e578d724.zip | |
scsi: sd: Write lock zone for REQ_OP_WRITE_ZEROES
For a zoned block device, sd_zbc_complete() handles zone write unlock on
completion of a REQ_OP_WRITE_ZEROES command but the zone write locking
is missing from sd_setup_write_zeroes_cmnd(). This patch fixes this
problem by locking the target zone of a REQ_OP_WRITE_ZEROES request.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/sd.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index e60a309b26bf..de9e2f2ef662 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -827,21 +827,32 @@ static int sd_setup_write_zeroes_cmnd(struct scsi_cmnd *cmd) struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); u64 sector = blk_rq_pos(rq) >> (ilog2(sdp->sector_size) - 9); u32 nr_sectors = blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9); + int ret; if (!(rq->cmd_flags & REQ_NOUNMAP)) { switch (sdkp->zeroing_mode) { case SD_ZERO_WS16_UNMAP: - return sd_setup_write_same16_cmnd(cmd, true); + ret = sd_setup_write_same16_cmnd(cmd, true); + goto out; case SD_ZERO_WS10_UNMAP: - return sd_setup_write_same10_cmnd(cmd, true); + ret = sd_setup_write_same10_cmnd(cmd, true); + goto out; } } if (sdp->no_write_same) return BLKPREP_INVALID; + if (sdkp->ws16 || sector > 0xffffffff || nr_sectors > 0xffff) - return sd_setup_write_same16_cmnd(cmd, false); - return sd_setup_write_same10_cmnd(cmd, false); + ret = sd_setup_write_same16_cmnd(cmd, false); + else + ret = sd_setup_write_same10_cmnd(cmd, false); + +out: + if (sd_is_zoned(sdkp) && ret == BLKPREP_OK) + return sd_zbc_write_lock_zone(cmd); + + return ret; } static void sd_config_write_same(struct scsi_disk *sdkp) |