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btrfs: cleanup device states define BTRFS_DEV_STATE_WRITEABLE

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Currently device state is being managed by each individual int
variable such as struct btrfs_device::writeable. Instead of that
declare device state BTRFS_DEV_STATE_WRITEABLE and use the
bit operations.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
[ whitespace adjustments ]
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain
2017-12-04 12:54:52 +08:00
committed by David Sterba
parent 3c958bd23b
commit ebbede42d4
7 changed files with 49 additions and 34 deletions
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3
fs/btrfs/extent_io.c
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@@ -2026,7 +2026,8 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 ino, u64 start,
bio->bi_iter.bi_sector = sector;
dev = bbio->stripes[bbio->mirror_num - 1].dev;
btrfs_put_bbio(bbio);
if (!dev || !dev->bdev || !dev->writeable) {
if (!dev || !dev->bdev ||
!test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) {
btrfs_bio_counter_dec(fs_info);
bio_put(bio);
return -EIO;