As we use per-chunk degradable check, now the global
num_tolerated_disk_barrier_failures is of no use.
So cleanup it.
Signed-off-by: Qu Wenruo <quwen...@cn.fujitsu.com>
---
fs/btrfs/ctree.h | 2 --
fs/btrfs/disk-io.c | 54 ------------------------------------------------------
fs/btrfs/disk-io.h | 2 --
fs/btrfs/volumes.c | 17 -----------------
4 files changed, 75 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index f03c2f285eb1..068c1be83266 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1061,8 +1061,6 @@ struct btrfs_fs_info {
/* next backup root to be overwritten */
int backup_root_index;
- int num_tolerated_disk_barrier_failures;
-
/* device replace state */
struct btrfs_dev_replace dev_replace;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f596bd130524..f86eaf63e5f5 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3639,60 +3639,6 @@ int btrfs_get_num_tolerated_disk_barrier_failures(u64
flags)
return min_tolerated;
}
-int btrfs_calc_num_tolerated_disk_barrier_failures(
- struct btrfs_fs_info *fs_info)
-{
- struct btrfs_ioctl_space_info space;
- struct btrfs_space_info *sinfo;
- u64 types[] = {BTRFS_BLOCK_GROUP_DATA,
- BTRFS_BLOCK_GROUP_SYSTEM,
- BTRFS_BLOCK_GROUP_METADATA,
- BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_METADATA};
- int i;
- int c;
- int num_tolerated_disk_barrier_failures =
- (int)fs_info->fs_devices->num_devices;
-
- for (i = 0; i < ARRAY_SIZE(types); i++) {
- struct btrfs_space_info *tmp;
-
- sinfo = NULL;
- rcu_read_lock();
- list_for_each_entry_rcu(tmp, &fs_info->space_info, list) {
- if (tmp->flags == types[i]) {
- sinfo = tmp;
- break;
- }
- }
- rcu_read_unlock();
-
- if (!sinfo)
- continue;
-
- down_read(&sinfo->groups_sem);
- for (c = 0; c < BTRFS_NR_RAID_TYPES; c++) {
- u64 flags;
-
- if (list_empty(&sinfo->block_groups[c]))
- continue;
-
- btrfs_get_block_group_info(&sinfo->block_groups[c],
- &space);
- if (space.total_bytes == 0 || space.used_bytes == 0)
- continue;
- flags = space.flags;
-
- num_tolerated_disk_barrier_failures = min(
- num_tolerated_disk_barrier_failures,
- btrfs_get_num_tolerated_disk_barrier_failures(
- flags));
- }
- up_read(&sinfo->groups_sem);
- }
-
- return num_tolerated_disk_barrier_failures;
-}
-
int write_all_supers(struct btrfs_fs_info *fs_info, int max_mirrors)
{
struct list_head *head;
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 2e0ec29bfd69..4522d2f11909 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -142,8 +142,6 @@ struct btrfs_root *btrfs_create_tree(struct
btrfs_trans_handle *trans,
int btree_lock_page_hook(struct page *page, void *data,
void (*flush_fn)(void *));
int btrfs_get_num_tolerated_disk_barrier_failures(u64 flags);
-int btrfs_calc_num_tolerated_disk_barrier_failures(
- struct btrfs_fs_info *fs_info);
int __init btrfs_end_io_wq_init(void);
void btrfs_end_io_wq_exit(void);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 729cbd0d2b60..72c78f096755 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1973,9 +1973,6 @@ 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;
@@ -2474,8 +2471,6 @@ 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) {
@@ -3858,13 +3853,6 @@ int btrfs_balance(struct btrfs_balance_control *bctl,
bctl->meta.target, bctl->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;
@@ -3887,11 +3875,6 @@ 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);
--
2.12.0
--
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