diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-06-13 10:48:22 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-06-14 10:20:07 -0600 |
| commit | c6e56cf6b2e79a463af21286ba951714ed20828c (patch) | |
| tree | 9c8d0217fab2cac74942478466deb6b803ac87fd /drivers/scsi/sd.c | |
| parent | 9f4aa46f2a7401025d8561495cf8740f773310fc (diff) | |
block: move integrity information into queue_limits
Move the integrity information into the queue limits so that it can be
set atomically with other queue limits, and that the sysfs changes to
the read_verify and write_generate flags are properly synchronized.
This also allows to provide a more useful helper to stack the integrity
fields, although it still is separate from the main stacking function
as not all stackable devices want to inherit the integrity settings.
Even with that it greatly simplifies the code in md and dm.
Note that the integrity field is moved as-is into the queue limits.
While there are good arguments for removing the separate blk_integrity
structure, this would cause a lot of churn and might better be done at a
later time if desired. However the integrity field in the queue_limits
structure is now unconditional so that various ifdefs can be avoided or
replaced with IS_ENABLED(). Given that tiny size of it that seems like
a worthwhile trade off.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20240613084839.1044015-13-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index d957e29b17a98..e01393ed42076 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2482,11 +2482,13 @@ static int sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer return 0; } -static void sd_config_protection(struct scsi_disk *sdkp) +static void sd_config_protection(struct scsi_disk *sdkp, + struct queue_limits *lim) { struct scsi_device *sdp = sdkp->device; - sd_dif_config_host(sdkp); + if (IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY)) + sd_dif_config_host(sdkp, lim); if (!sdkp->protection_type) return; @@ -3677,7 +3679,7 @@ static int sd_revalidate_disk(struct gendisk *disk) sd_read_app_tag_own(sdkp, buffer); sd_read_write_same(sdkp, buffer); sd_read_security(sdkp, buffer); - sd_config_protection(sdkp); + sd_config_protection(sdkp, &lim); } /* |