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[SCSI] sd: Permit merged discard requests
authorMartin K. Petersen <martin.petersen@oracle.com>
Tue, 18 Sep 2012 16:19:31 +0000 (12:19 -0400)
committerJames Bottomley <JBottomley@Parallels.com>
Wed, 14 Nov 2012 05:23:53 +0000 (21:23 -0800)
Support requests with more than one bio payload for discards. The total
number of bytes to be discarded is stored in req->__data_len and used in
sd_done() to complete the I/O.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

No differences found
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