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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2008-12-18 14:49:38 +0900
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-01-02 11:10:35 -0600
commit97ae77a1cd332c7b011d71315c8faabce6840c72 (patch)
treefc243ca28ea474eaf81729079eeb3b259cd1b81b /fs/omfs
parent56c451f4b583ccdf80c9e676179c9cb49de86745 (diff)
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[SCSI] block: make blk_rq_map_user take a NULL user-space buffer for WRITE
The commit 818827669d85b84241696ffef2de485db46b0b5e (block: make blk_rq_map_user take a NULL user-space buffer) extended blk_rq_map_user to accept a NULL user-space buffer with a READ command. It was necessary to convert sg to use the block layer mapping API. This patch extends blk_rq_map_user again for a WRITE command. It is necessary to convert st and osst drivers to use the block layer apping API. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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