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block: Convert various code to bio_for_each_segment()

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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 <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Chris Mason <chris.mason@fusionio.com>
Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Cc: Joern Engel <joern@logfs.org>
Cc: Prasad Joshi <prasadjoshi.linux@gmail.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Kent Overstreet
2013-11-07 12:20:26 -08:00
parent 33879d4512
commit 2c30c71bd6
10 changed files with 66 additions and 101 deletions
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10
fs/btrfs/compression.c
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@@ -201,18 +201,16 @@ csum_failed:
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);
}