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-rw-r--r--drivers/md/bcache/super.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 5136e11..fb34327 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -843,6 +843,7 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
q->limits.max_segment_size = UINT_MAX;
q->limits.max_segments = BIO_MAX_PAGES;
q->limits.max_discard_sectors = UINT_MAX;
+ q->limits.discard_granularity = 512;
q->limits.io_min = block_size;
q->limits.logical_block_size = block_size;
q->limits.physical_block_size = block_size;
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