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| author | Ming Lei <ming.lei@redhat.com> | 2018-10-12 10:53:10 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-10-18 16:23:40 +0300 |
| commit | 744889b7cbb56a64f957e65ade7cb65fe3f35714 (patch) | |
| tree | 65972a4045c33b737862a4522271ec5705f41e2c /Documentation/percpu-rw-semaphore.txt | |
| parent | 7a7080b53467ad96c0b371e9d2a2a312f96f99c2 (diff) | |
| download | linux-744889b7cbb56a64f957e65ade7cb65fe3f35714.tar.xz | |
block: don't deal with discard limit in blkdev_issue_discard()
blk_queue_split() does respect this limit via bio splitting, so no
need to do that in blkdev_issue_discard(), then we can align to
normal bio submit(bio_add_page() & submit_bio()).
More importantly, this patch fixes one issue introduced in a22c4d7e34402cc
("block: re-add discard_granularity and alignment checks"), in which
zero discard bio may be generated in case of zero alignment.
Fixes: a22c4d7e34402ccdf3 ("block: re-add discard_granularity and alignment checks")
Cc: stable@vger.kernel.org
Cc: Ming Lin <ming.l@ssi.samsung.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Xiao Ni <xni@redhat.com>
Tested-by: Mariusz Dabrowski <mariusz.dabrowski@intel.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/percpu-rw-semaphore.txt')
0 files changed, 0 insertions, 0 deletions