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(parent: 28018c2) | patch
scsi: add sd_unprep_fn to free discard page
authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Thu, 1 Jul 2010 10:49:18 +0000 (19:49 +0900)
committerJens Axboe <jaxboe@fusionio.com>
Sat, 7 Aug 2010 16:23:49 +0000 (18:23 +0200)
commitf1126e950d28ff875d96ed6a04a9ff96c7bfc357
tree4d7217b91a658c1c8fa31325f39b102377765f21tree | snapshot
parent28018c242a4ec7017bbbf81d2d3952f820a27118commit | diff
scsi: add sd_unprep_fn to free discard page

This fixes discard page leak by using q->unprep_rq_fn facility.

q->unprep_rq_fn is called when all the data buffer (req->bio and
scsi_data_buffer) in the request is freed.

sd_unprep() uses rq->buffer to free discard page allocated in
sd_prepare_discard().

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
drivers/scsi/sd.c diff | blob | history
Beck SC1x5 Kernel