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| author | Kent Overstreet <kmo@daterainc.com> | 2013-11-08 00:20:26 +0400 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2013-11-24 10:33:46 +0400 |
| commit | 2c30c71bd653afcbed7f6754e8fe3d16e0e708a1 (patch) | |
| tree | a6b1147e4302b7216600c397cb47ca7f7f375a43 /fs/logfs | |
| parent | 33879d4512c021ae65be9706608dacb36b4687b1 (diff) | |
| download | linux-2c30c71bd653afcbed7f6754e8fe3d16e0e708a1.tar.xz | |
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 <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>
Diffstat (limited to 'fs/logfs')
| -rw-r--r-- | fs/logfs/dev_bdev.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c index 0f95f0d0b313..e6df3be3b31b 100644 --- a/fs/logfs/dev_bdev.c +++ b/fs/logfs/dev_bdev.c @@ -56,22 +56,18 @@ static DECLARE_WAIT_QUEUE_HEAD(wq); static void writeseg_end_io(struct bio *bio, int err) { const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); - struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1; + struct bio_vec *bvec; + int i; struct super_block *sb = bio->bi_private; struct logfs_super *super = logfs_super(sb); - struct page *page; BUG_ON(!uptodate); /* FIXME: Retry io or write elsewhere */ BUG_ON(err); - BUG_ON(bio->bi_vcnt == 0); - do { - page = bvec->bv_page; - if (--bvec >= bio->bi_io_vec) - prefetchw(&bvec->bv_page->flags); - - end_page_writeback(page); - page_cache_release(page); - } while (bvec >= bio->bi_io_vec); + + bio_for_each_segment_all(bvec, bio, i) { + end_page_writeback(bvec->bv_page); + page_cache_release(bvec->bv_page); + } bio_put(bio); if (atomic_dec_and_test(&super->s_pending_writes)) wake_up(&wq); |