dm thin: use dm_target_offset

kergon · kergon · commit 6efd6e83092c · 2012-03-28T18:41:28.000+01:00
Use dm_target_offset wrapper instead of referencing the awkward ti-&gt;begin
explicitly.

Signed-off-by: Alasdair G Kergon &lt;agk@redhat.com&gt;
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
@@ -2389,7 +2389,7 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
 static int thin_map(struct dm_target *ti, struct bio *bio,
 		    union map_info *map_context)
 {
-	bio->bi_sector -= ti->begin;
+	bio->bi_sector = dm_target_offset(ti, bio->bi_sector);
 
 	return thin_bio_map(ti, bio, map_context);
 }

Original file line number	Diff line number	Diff line change
`@@ -2389,7 +2389,7 @@ static int thin_ctr(struct dm_target ti, unsigned argc, char *argv)`
`2389`	`2389`	`static int thin_map(struct dm_target ti, struct bio bio,`
`2390`	`2390`	`union map_info *map_context)`
`2391`	`2391`	`{`
`2392`		`- bio->bi_sector -= ti->begin;`
	`2392`	`+ bio->bi_sector = dm_target_offset(ti, bio->bi_sector);`
`2393`	`2393`
`2394`	`2394`	`return thin_bio_map(ti, bio, map_context);`
`2395`	`2395`	`}`