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btrfs: Allow barrier_all_devices to do chunk level device check

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The last user of num_tolerated_disk_barrier_failures is
barrier_all_devices().
But it can be easily changed to the new per-chunk degradable check
framework.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2017-06-27 17:28:40 +08:00 committed by David Sterba
parent b382cfe889
commit d10b82fe29
1 changed files with 3 additions and 13 deletions
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16
fs/btrfs/disk-io.c
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@ -3519,20 +3519,10 @@ static blk_status_t wait_dev_flush(struct btrfs_device *device)
return bio->bi_status;
}
static int check_barrier_error(struct btrfs_fs_devices *fsdevs)
static int check_barrier_error(struct btrfs_fs_info *fs_info)
{
int dev_flush_error = 0;
struct btrfs_device *dev;
list_for_each_entry_rcu(dev, &fsdevs->devices, dev_list) {
if (!dev->bdev || dev->last_flush_error)
dev_flush_error++;
}
if (dev_flush_error >
fsdevs->fs_info->num_tolerated_disk_barrier_failures)
if (!btrfs_check_rw_degradable(fs_info))
return -EIO;
return 0;
}
@ -3587,7 +3577,7 @@ static int barrier_all_devices(struct btrfs_fs_info *info)
* to arrive at the volume status. So error checking
* is being pushed to a separate loop.
*/
return check_barrier_error(info->fs_devices);
return check_barrier_error(info);
}
return 0;
}