block: Convert various code to bio_for_each_segment()
With immutable biovecs we don't want code accessing bi_io_vec directly -
the uses this patch changes weren't incorrect since they all own the
bio, but it makes the code harder to audit for no good reason - also,
this will help with multipage bvecs later.
Signed-off-by: Kent Overstreet <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Alexander Viro <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Jaegeuk Kim <[email protected]>
Cc: Joern Engel <[email protected]>
Cc: Prasad Joshi <[email protected]>
Cc: Trond Myklebust <[email protected]>
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 1499b27..eac6784 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -201,18 +201,16 @@
if (cb->errors) {
bio_io_error(cb->orig_bio);
} else {
- int bio_index = 0;
- struct bio_vec *bvec = cb->orig_bio->bi_io_vec;
+ int i;
+ struct bio_vec *bvec;
/*
* we have verified the checksum already, set page
* checked so the end_io handlers know about it
*/
- while (bio_index < cb->orig_bio->bi_vcnt) {
+ bio_for_each_segment_all(bvec, cb->orig_bio, i)
SetPageChecked(bvec->bv_page);
- bvec++;
- bio_index++;
- }
+
bio_endio(cb->orig_bio, 0);
}
