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(parent: 7911561) | 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)
commit21fb84fa91168501465c9918cd8bf9ad4a12ebb7
tree4d7217b91a658c1c8fa31325f39b102377765f21tree | snapshot
parent791156164ffade3bda3f49be88be573e21cd5f69commit | 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
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