diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-04-09 16:37:34 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-04-11 21:37:49 -0400 |
| commit | 693a1e8cbe121bcef3331152259216bc397b6db6 (patch) | |
| tree | a3a9f7e5e069ba26330163336430af011b650423 /drivers/scsi/scsi_scan.c | |
| parent | 67144d3c58b4256cc15ebad2c90c0a283e707aa1 (diff) | |
scsi: core: Use the atomic queue limits API in scsi_add_lun()
Switch scsi_add_lun() to use the atomic queue limits API to update the
max_hw_sectors for devices with quirks.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240409143748.980206-10-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_scan.c')
| -rw-r--r-- | drivers/scsi/scsi_scan.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 205ab3b3ea89..1ec4b309af72 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -874,6 +874,7 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, blist_flags_t *bflags, int async) { + struct queue_limits lim; int ret; /* @@ -1005,19 +1006,6 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, sdev->select_no_atn = 1; /* - * Maximum 512 sector transfer length - * broken RA4x00 Compaq Disk Array - */ - if (*bflags & BLIST_MAX_512) - blk_queue_max_hw_sectors(sdev->request_queue, 512); - /* - * Max 1024 sector transfer length for targets that report incorrect - * max/optimal lengths and relied on the old block layer safe default - */ - else if (*bflags & BLIST_MAX_1024) - blk_queue_max_hw_sectors(sdev->request_queue, 1024); - - /* * Some devices may not want to have a start command automatically * issued when a device is added. */ @@ -1077,6 +1065,20 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, transport_configure_device(&sdev->sdev_gendev); + /* + * No need to freeze the queue as it isn't reachable to anyone else yet. + */ + lim = queue_limits_start_update(sdev->request_queue); + if (*bflags & BLIST_MAX_512) + lim.max_hw_sectors = 512; + else if (*bflags & BLIST_MAX_1024) + lim.max_hw_sectors = 1024; + ret = queue_limits_commit_update(sdev->request_queue, &lim); + if (ret) { + sdev_printk(KERN_ERR, sdev, "failed to apply queue limits.\n"); + return SCSI_SCAN_NO_RESPONSE; + } + if (sdev->host->hostt->slave_configure) { ret = sdev->host->hostt->slave_configure(sdev); if (ret) { |