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bcache: Fix discard granularity

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blk_stack_limits() doesn't like a discard granularity of 0.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
This commit is contained in:
Kent Overstreet 2014-02-10 17:26:40 -08:00
parent 487dded86e
commit 90db6919f5
1 changed files with 1 additions and 0 deletions
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drivers/md/bcache/super.c
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@ -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_segment_size = UINT_MAX;
q->limits.max_segments = BIO_MAX_PAGES; q->limits.max_segments = BIO_MAX_PAGES;
q->limits.max_discard_sectors = UINT_MAX; q->limits.max_discard_sectors = UINT_MAX;
q->limits.discard_granularity = 512;
q->limits.io_min = block_size; q->limits.io_min = block_size;
q->limits.logical_block_size = block_size; q->limits.logical_block_size = block_size;
q->limits.physical_block_size = block_size; q->limits.physical_block_size = block_size;