scsi: remove unused free discard page in sd_done

- sd_done isn't called for pc request so we never call the code.
- we use sd_unprep to free discard page now.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 0 insertions, 9 deletions

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 2d4e3a865f39..aa6b48ba78b1 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1179,15 +1179,6 @@ static int sd_done(struct scsi_cmnd *SCpnt)
         int sense_valid = 0;
         int sense_deferred = 0;
 
-        /*
-         * If this is a discard request that originated from the kernel
-         * we need to free our payload here.  Note that we need to check
-         * the request flag as the normal payload rules apply for
-         * pass-through UNMAP / WRITE SAME requests.
-         */
-        if (SCpnt->request->cmd_flags & REQ_DISCARD)
-                __free_page(bio_page(SCpnt->request->bio));
-
         if (result) {
                 sense_valid = scsi_command_normalize_sense(SCpnt, &sshdr);
                 if (sense_valid)