| commit | e339c1a7c09ef736dca7b3a4353c7742557d9f8f | [log] [tgz] |
|---|---|---|
| author | Martin K. Petersen <martin.petersen@oracle.com> | Thu Nov 26 12:00:40 2009 -0500 |
| committer | James Bottomley <James.Bottomley@suse.de> | Thu Dec 10 08:54:15 2009 -0600 |
| tree | 60f7bc7c1867f180262dab01cc8c047967d728cd | |
| parent | cc9b2e9f6603190c009e5d2629ce8e3f99571346 [diff] |
[SCSI] sd: WRITE SAME(16) / UNMAP support Implement a function for handling discard requests that sends either WRITE SAME(16) or UNMAP(10) depending on parameters indicated by the device in the block limits VPD. Extract unmap constraints and report them to the block layer. Based in part by a patch by Christoph Hellwig <hch@lst.de>. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>