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| author | Jens Axboe <axboe@fb.com> | 2014-04-16 21:37:30 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-04-16 21:37:30 -0600 |
| commit | dc4a93078b8a6a10d2dcaba76ab488d6dbe73922 (patch) | |
| tree | cee24991c2d4fa7d6ad6e2be790fde880c0223ed /drivers/block/skd_main.c | |
| parent | fb1be43301ce045b5e563416e701573464a2ed96 (diff) | |
| download | linux-dc4a93078b8a6a10d2dcaba76ab488d6dbe73922.tar.bz2 | |
sd/skd: stuff discard page in request->completion_data
Store the pointer to the page there, so we can always safely
reference it from end_io context where ->bio may have been
cleared.
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/skd_main.c')
| -rw-r--r-- | drivers/block/skd_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c index 36bcedfd930c..c48d9084c965 100644 --- a/drivers/block/skd_main.c +++ b/drivers/block/skd_main.c @@ -743,6 +743,7 @@ static void skd_request_fn(struct request_queue *q) break; } skreq->discard_page = 1; + req->completion_data = page; skd_prep_discard_cdb(scsi_req, skreq, page, lba, count); } else if (flush == SKD_FLUSH_ZERO_SIZE_FIRST) { @@ -855,10 +856,9 @@ static void skd_end_request(struct skd_device *skdev, if ((io_flags & REQ_DISCARD) && (skreq->discard_page == 1)) { - struct bio *bio = req->bio; pr_debug("%s:%s:%d, free the page!", skdev->name, __func__, __LINE__); - __free_page(bio->bi_io_vec->bv_page); + __free_page(req->completion_data); } if (unlikely(error)) { |