iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Btrfs: Add per-root block accounting and sysfs entries

Browse Source 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Josef Bacik
2007-08-29 15:47:34 -04:00
committed by David Woodhouse
parent b888db2bd7
commit 58176a9604
9 changed files with 393 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
fs/btrfs/inode.c
View File

@@ -733,7 +733,8 @@ out:
*/
static int fixup_tree_root_location(struct btrfs_root *root,
struct btrfs_key *location,
struct btrfs_root **sub_root)
struct btrfs_root **sub_root,
struct dentry *dentry)
{
struct btrfs_path *path;
struct btrfs_root_item *ri;
@@ -747,7 +748,9 @@ static int fixup_tree_root_location(struct btrfs_root *root,
BUG_ON(!path);
mutex_lock(&root->fs_info->fs_mutex);
*sub_root = btrfs_read_fs_root(root->fs_info, location);
*sub_root = btrfs_read_fs_root(root->fs_info, location,
dentry->d_name.name,
dentry->d_name.len);
if (IS_ERR(*sub_root))
return PTR_ERR(*sub_root);
@@ -812,7 +815,8 @@ static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry,
return ERR_PTR(ret);
inode = NULL;
if (location.objectid) {
ret = fixup_tree_root_location(root, &location, &sub_root);
ret = fixup_tree_root_location(root, &location, &sub_root,
dentry);
if (ret < 0)
return ERR_PTR(ret);
if (ret > 0)
@@ -1829,6 +1833,7 @@ static int create_subvol(struct btrfs_root *root, char *name, int namelen)
btrfs_set_root_blocknr(&root_item, bh_blocknr(subvol));
btrfs_set_root_refs(&root_item, 1);
btrfs_set_root_blocks_used(&root_item, 0);
memset(&root_item.drop_progress, 0, sizeof(root_item.drop_progress));
root_item.drop_level = 0;
brelse(subvol);
@@ -1865,7 +1870,7 @@ static int create_subvol(struct btrfs_root *root, char *name, int namelen)
if (ret)
goto fail_commit;
new_root = btrfs_read_fs_root(root->fs_info, &key);
new_root = btrfs_read_fs_root(root->fs_info, &key, name, namelen);
BUG_ON(!new_root);
trans = btrfs_start_transaction(new_root, 1);