On 07/19/2016 03:23 AM, Christoph Hellwig wrote:
The first one is a repost of my BLKDEV_DISCARD_ZERO with the spelling fixes suggest from Martin, the second one just drops the -EOPNOTSUPP special casing in blkdev_issue_write_same. Note that the patches are against the block for-next tree, and unfortunately we have diverged significantly from 4.7 in this area: 4.7 has the missing bio_put for the sumbmit_bio_wait callers, and 4.8 has the various req_op changes, including a new calling convention for __blkdev_issue_zeroout. I'm not sure how to best sort this mess out, but I really think we need the bio_put in the for-4.8 tree as well, and we should probably bring the changed __blkdev_issue_discard calling convention into 4.7 as well. Suggestion for how to best handle this?
I think we should leave 4.7 as-is. The put issue being fixed is the most important one, so just roll a separate 4.8 patch for that.
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