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authorChristoph Hellwig <hch@lst.de>2023-12-28 10:55:38 +0300
committerJens Axboe <axboe@kernel.dk>2023-12-29 18:44:12 +0300
commit5e7169e7f7c0989304dbe8467a1d703d614c64db (patch)
tree67ea6c4acd129810052f358c83f867d845da2243 /drivers/md
parent928a5dd3a849dc6d8298835bdcb25c360d41bccb (diff)
downloadlinux-5e7169e7f7c0989304dbe8467a1d703d614c64db.tar.xz
bcache: discard_granularity should not be smaller than a sector
Just like all block I/O, discards are in units of sectors. Thus setting a smaller than sector size discard limit in case of > 512 byte sectors in bcache doesn't make sense. Always set the discard granularity to 512 bytes instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20231228075545.362768-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/bcache/super.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index bfe1685dbae5..ecc1447f202a 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -954,7 +954,7 @@ static int bcache_device_init(struct bcache_device *d, unsigned int block_size,
q->limits.max_segment_size = UINT_MAX;
q->limits.max_segments = BIO_MAX_VECS;
blk_queue_max_discard_sectors(q, UINT_MAX);
- q->limits.discard_granularity = 512;
+ q->limits.discard_granularity = block_size;
q->limits.io_min = block_size;
q->limits.logical_block_size = block_size;
q->limits.physical_block_size = block_size;