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| author | Zhao Lei <zhaolei@cn.fujitsu.com> | 2015-02-12 15:42:16 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2015-02-16 18:48:44 +0100 |
| commit | 08da757d3f29e9d33480ae1c44b557a2514d70c5 (patch) | |
| tree | d4a3b2df5f7766cbf5fe066f1d21869ff9e4be4f /fs/btrfs/volumes.c | |
| parent | a688a04aab72a775e07fe460f563b46f7791cfc1 (diff) | |
| download | lwn-08da757d3f29e9d33480ae1c44b557a2514d70c5.tar.gz lwn-08da757d3f29e9d33480ae1c44b557a2514d70c5.zip | |
btrfs: cleanup: use for() loop in btrfs_map_bio()
for() is obviously better in these code block, and remove noused
init-value to reduce about 6 bytes binary size.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 30c6074f3d00..d7d1dde5f2ff 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -5820,8 +5820,8 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, u64 length = 0; u64 map_length; int ret; - int dev_nr = 0; - int total_devs = 1; + int dev_nr; + int total_devs; struct btrfs_bio *bbio = NULL; length = bio->bi_iter.bi_size; @@ -5862,11 +5862,10 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, BUG(); } - while (dev_nr < total_devs) { + for (dev_nr = 0; dev_nr < total_devs; dev_nr++) { dev = bbio->stripes[dev_nr].dev; if (!dev || !dev->bdev || (rw & WRITE && !dev->writeable)) { bbio_error(bbio, first_bio, logical); - dev_nr++; continue; } @@ -5879,7 +5878,6 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, ret = breakup_stripe_bio(root, bbio, first_bio, dev, dev_nr, rw, async_submit); BUG_ON(ret); - dev_nr++; continue; } @@ -5894,7 +5892,6 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, submit_stripe_bio(root, bbio, bio, bbio->stripes[dev_nr].physical, dev_nr, rw, async_submit); - dev_nr++; } btrfs_bio_counter_dec(root->fs_info); return 0; |