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| author | Ming Lei <ming.lei@redhat.com> | 2020-08-17 17:52:39 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-08-17 06:59:41 -0700 |
| commit | 943b40c832beb71115e38a1c4d99b640b5342738 (patch) | |
| tree | bad51d9f93dd0e6f0cd7e4acec5016f6acb62dab /drivers/block | |
| parent | bcb21c8cc9947286211327d663ace69f07d37a76 (diff) | |
| download | linux-943b40c832beb71115e38a1c4d99b640b5342738.tar.gz | |
block: respect queue limit of max discard segment
When queue_max_discard_segments(q) is 1, blk_discard_mergable() will
return false for discard request, then normal request merge is applied.
However, only queue_max_segments() is checked, so max discard segment
limit isn't respected.
Check max discard segment limit in the request merge code for fixing
the issue.
Discard request failure of virtio_blk is fixed.
Fixes: 69840466086d ("block: fix the DISCARD request merge")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
0 files changed, 0 insertions, 0 deletions