diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-04-15 07:52:55 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-04-18 04:49:59 +0300 |
| commit | 70200574cc229f6ba038259e8142af2aa09e6976 (patch) | |
| tree | 07398810532d1e075f413bb4771d7b90b40b1226 /drivers/md/bcache | |
| parent | cf0fbf894bb543f472f682c486be48298eccf199 (diff) | |
| download | linux-70200574cc229f6ba038259e8142af2aa09e6976.tar.xz | |
block: remove QUEUE_FLAG_DISCARD
Just use a non-zero max_discard_sectors as an indicator for discard
support, similar to what is done for write zeroes.
The only places where needs special attention is the RAID5 driver,
which must clear discard support for security reasons by default,
even if the default stacking rules would allow for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> [drbd]
Acked-by: Jan Höppner <hoeppner@linux.ibm.com> [s390]
Acked-by: Coly Li <colyli@suse.de> [bcache]
Acked-by: David Sterba <dsterba@suse.com> [btrfs]
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-25-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/bcache')
| -rw-r--r-- | drivers/md/bcache/request.c | 4 | ||||
| -rw-r--r-- | drivers/md/bcache/super.c | 3 | ||||
| -rw-r--r-- | drivers/md/bcache/sysfs.c | 2 |
3 files changed, 4 insertions, 5 deletions
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index fdd0194f84dd..e27f67f06a42 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -1005,7 +1005,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s) bio_get(s->iop.bio); if (bio_op(bio) == REQ_OP_DISCARD && - !blk_queue_discard(bdev_get_queue(dc->bdev))) + !bdev_max_discard_sectors(dc->bdev)) goto insert_data; /* I/O request sent to backing device */ @@ -1115,7 +1115,7 @@ static void detached_dev_do_request(struct bcache_device *d, struct bio *bio, bio->bi_private = ddip; if ((bio_op(bio) == REQ_OP_DISCARD) && - !blk_queue_discard(bdev_get_queue(dc->bdev))) + !bdev_max_discard_sectors(dc->bdev)) bio->bi_end_io(bio); else submit_bio_noacct(bio); diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index bf3de149d3c9..2f49e31142f6 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -973,7 +973,6 @@ static int bcache_device_init(struct bcache_device *d, unsigned int block_size, blk_queue_flag_set(QUEUE_FLAG_NONROT, d->disk->queue); blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, d->disk->queue); - blk_queue_flag_set(QUEUE_FLAG_DISCARD, d->disk->queue); blk_queue_write_cache(q, true, true); @@ -2350,7 +2349,7 @@ static int register_cache(struct cache_sb *sb, struct cache_sb_disk *sb_disk, ca->bdev->bd_holder = ca; ca->sb_disk = sb_disk; - if (blk_queue_discard(bdev_get_queue(bdev))) + if (bdev_max_discard_sectors((bdev))) ca->discard = CACHE_DISCARD(&ca->sb); ret = cache_alloc(ca); diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index d1029d71ff3b..c6f677059214 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -1151,7 +1151,7 @@ STORE(__bch_cache) if (attr == &sysfs_discard) { bool v = strtoul_or_return(buf); - if (blk_queue_discard(bdev_get_queue(ca->bdev))) + if (bdev_max_discard_sectors(ca->bdev)) ca->discard = v; if (v != CACHE_DISCARD(&ca->sb)) { |