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authorTejun Heo <tj@kernel.org>2009-05-07 15:24:38 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-05-11 09:50:53 +0200
commit5b93629b4509c03ffa87a9316412fedf6f58cb37 (patch)
treead5ceda3f718361b8df3057b4f9edcc79aa4cd9d /kernel
parentblock: add rq->resid_len (diff)
downloadlinux-5b93629b4509c03ffa87a9316412fedf6f58cb37.tar.xz
linux-5b93629b4509c03ffa87a9316412fedf6f58cb37.zip
block: implement blk_rq_pos/[cur_]sectors() and convert obvious ones
Implement accessors - blk_rq_pos(), blk_rq_sectors() and blk_rq_cur_sectors() which return rq->hard_sector, rq->hard_nr_sectors and rq->hard_cur_sectors respectively and convert direct references of the said fields to the accessors. This is in preparation of request data length handling cleanup. Geert : suggested adding const to struct request * parameter to accessors Sergei : spotted error in patch description [ Impact: cleanup ] Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Tested-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Grant Likely <grant.likely@secretlab.ca> Ackec-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Borislav Petkov <petkovbb@googlemail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/blktrace.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 921ef5d1f0ba..42f1c11e754c 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -646,7 +646,7 @@ static void blk_add_trace_rq(struct request_queue *q, struct request *rq,
rq->cmd_len, rq->cmd);
} else {
what |= BLK_TC_ACT(BLK_TC_FS);
- __blk_add_trace(bt, rq->hard_sector, rq->hard_nr_sectors << 9,
+ __blk_add_trace(bt, blk_rq_pos(rq), blk_rq_sectors(rq) << 9,
rw, what, rq->errors, 0, NULL);
}
}
@@ -857,7 +857,7 @@ void blk_add_driver_data(struct request_queue *q,
__blk_add_trace(bt, 0, rq->data_len, 0, BLK_TA_DRV_DATA,
rq->errors, len, data);
else
- __blk_add_trace(bt, rq->hard_sector, rq->hard_nr_sectors << 9,
+ __blk_add_trace(bt, blk_rq_pos(rq), blk_rq_sectors(rq) << 9,
0, BLK_TA_DRV_DATA, rq->errors, len, data);
}
EXPORT_SYMBOL_GPL(blk_add_driver_data);