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btrfs: Use fs_info directly in btrfs_delete_unused_bgs

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No need to use root->fs_info in btrfs_delete_unused_bgs(),
use fs_info directly instead.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Zhao Lei 2015-10-08 18:46:44 +08:00 committed by Chris Mason
parent 2c9fe83552
commit d5f2e33b92
1 changed files with 2 additions and 2 deletions
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4
fs/btrfs/extent-tree.c
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@ -10289,7 +10289,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
}
spin_unlock(&fs_info->unused_bgs_lock);
mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
mutex_lock(&fs_info->delete_unused_bgs_mutex);
/* Don't want to race with allocators so take the groups_sem */
down_write(&space_info->groups_sem);
@ -10413,7 +10413,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
end_trans:
btrfs_end_transaction(trans, root);
next:
mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
mutex_unlock(&fs_info->delete_unused_bgs_mutex);
btrfs_put_block_group(block_group);
spin_lock(&fs_info->unused_bgs_lock);
}