[SCSI] sd: Permit merged discard requests

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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>

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Martin K. Petersen 2012-09-18 12:19:31 -04:00 • committed by James Bottomley

parent 3c6bdaeab4

commit 26e85fcd15

1 changed files with 19 additions and 13 deletions

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32

drivers/scsi/sd.c

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