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btrfs: Cleanup num_tolerated_disk_barrier_failures

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As we use per-chunk degradable check, the global
num_tolerated_disk_barrier_failures is of no use.

We can now remove it.

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
2017-03-09 09:34:41 +08:00
committed by David Sterba
parent d10b82fe29
commit bc3cce2378
4 changed files with 0 additions and 75 deletions
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17
fs/btrfs/volumes.c
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@@ -1987,9 +1987,6 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path,
free_fs_devices(cur_devices);
}
fs_info->num_tolerated_disk_barrier_failures =
btrfs_calc_num_tolerated_disk_barrier_failures(fs_info);
out:
mutex_unlock(&uuid_mutex);
return ret;
@@ -2487,8 +2484,6 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
"sysfs: failed to create fsid for sprout");
}
fs_info->num_tolerated_disk_barrier_failures =
btrfs_calc_num_tolerated_disk_barrier_failures(fs_info);
ret = btrfs_commit_transaction(trans);
if (seeding_dev) {
@@ -3898,13 +3893,6 @@ int btrfs_balance(struct btrfs_balance_control *bctl,
meta_target, data_target);
}
if (bctl->sys.flags & BTRFS_BALANCE_ARGS_CONVERT) {
fs_info->num_tolerated_disk_barrier_failures = min(
btrfs_calc_num_tolerated_disk_barrier_failures(fs_info),
btrfs_get_num_tolerated_disk_barrier_failures(
bctl->sys.target));
}
ret = insert_balance_item(fs_info, bctl);
if (ret && ret != -EEXIST)
goto out;
@@ -3927,11 +3915,6 @@ int btrfs_balance(struct btrfs_balance_control *bctl,
mutex_lock(&fs_info->balance_mutex);
atomic_dec(&fs_info->balance_running);
if (bctl->sys.flags & BTRFS_BALANCE_ARGS_CONVERT) {
fs_info->num_tolerated_disk_barrier_failures =
btrfs_calc_num_tolerated_disk_barrier_failures(fs_info);
}
if (bargs) {
memset(bargs, 0, sizeof(*bargs));
update_ioctl_balance_args(fs_info, 0, bargs);