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btrfs: convert btrfs_inc_block_group_ro to accept fs_info

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btrfs_inc_block_group_ro is either passed the extent root or the dev
root, but it doesn't do anything with the dev tree.  Let's convert
to passing an fs_info and using the extent root.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Jeff Mahoney 2017-02-15 16:28:29 -05:00 committed by David Sterba
parent 0c9ab349c2
commit 5e00f1939f
4 changed files with 5 additions and 6 deletions
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2
fs/btrfs/ctree.h
View File

@ -2729,7 +2729,7 @@ int btrfs_cond_migrate_bytes(struct btrfs_fs_info *fs_info,
void btrfs_block_rsv_release(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *block_rsv,
u64 num_bytes);
int btrfs_inc_block_group_ro(struct btrfs_root *root,
int btrfs_inc_block_group_ro(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache *cache);
void btrfs_dec_block_group_ro(struct btrfs_block_group_cache *cache);
void btrfs_put_block_group_cache(struct btrfs_fs_info *info);

5
fs/btrfs/extent-tree.c
View File

@ -9359,17 +9359,16 @@ out:
return ret;
}
int btrfs_inc_block_group_ro(struct btrfs_root *root,
int btrfs_inc_block_group_ro(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache *cache)
{
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
u64 alloc_flags;
int ret;
again:
trans = btrfs_join_transaction(root);
trans = btrfs_join_transaction(fs_info->extent_root);
if (IS_ERR(trans))
return PTR_ERR(trans);

2
fs/btrfs/relocation.c
View File

@ -4334,7 +4334,7 @@ int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start)
rc->block_group = btrfs_lookup_block_group(fs_info, group_start);
BUG_ON(!rc->block_group);
ret = btrfs_inc_block_group_ro(extent_root, rc->block_group);
ret = btrfs_inc_block_group_ro(fs_info, rc->block_group);
if (ret) {
err = ret;
goto out;

2
fs/btrfs/scrub.c
View File

@ -3582,7 +3582,7 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
* -> btrfs_scrub_pause()
*/
scrub_pause_on(fs_info);
ret = btrfs_inc_block_group_ro(root, cache);
ret = btrfs_inc_block_group_ro(fs_info, cache);
if (!ret && is_dev_replace) {
/*
* If we are doing a device replace wait for any tasks