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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-07-07 21:44:25 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-07-20 07:44:20 +0200 |
| commit | 0ee5dc676a5f8fadede608c7281dfedb1ae714ea (patch) | |
| tree | 887896f0e1b51f39e9be21a1e8d960ec50a817a7 /fs/btrfs | |
| parent | get rid of pointless checks for dentry->sb == NULL (diff) | |
| download | linux-0ee5dc676a5f8fadede608c7281dfedb1ae714ea.tar.xz linux-0ee5dc676a5f8fadede608c7281dfedb1ae714ea.zip | |
btrfs: kill magical embedded struct superblock
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ctree.h | 2 | ||||
| -rw-r--r-- | fs/btrfs/disk-io.c | 15 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 2 |
3 files changed, 6 insertions, 13 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 9864cec801ed..9552afc24ef7 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1219,7 +1219,7 @@ struct btrfs_root { * right now this just gets used so that a root has its own devid * for stat. It may be used for more later */ - struct super_block anon_super; + dev_t anon_dev; }; struct btrfs_ioctl_defrag_range_args { diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 1ac8db5dc0a3..b231ae13b269 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1077,12 +1077,7 @@ static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize, init_completion(&root->kobj_unregister); root->defrag_running = 0; root->root_key.objectid = objectid; - root->anon_super.s_root = NULL; - root->anon_super.s_dev = 0; - INIT_LIST_HEAD(&root->anon_super.s_list); - INIT_LIST_HEAD(&root->anon_super.s_instances); - init_rwsem(&root->anon_super.s_umount); - + root->anon_dev = 0; return 0; } @@ -1311,7 +1306,7 @@ again: spin_lock_init(&root->cache_lock); init_waitqueue_head(&root->cache_wait); - ret = set_anon_super(&root->anon_super, NULL); + ret = get_anon_bdev(&root->anon_dev); if (ret) goto fail; @@ -2393,10 +2388,8 @@ static void free_fs_root(struct btrfs_root *root) { iput(root->cache_inode); WARN_ON(!RB_EMPTY_ROOT(&root->inode_tree)); - if (root->anon_super.s_dev) { - down_write(&root->anon_super.s_umount); - kill_anon_super(&root->anon_super); - } + if (root->anon_dev) + free_anon_bdev(root->anon_dev); free_extent_buffer(root->node); free_extent_buffer(root->commit_root); kfree(root->free_ino_ctl); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index cb170ca51c64..ecf0fac712d6 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6900,7 +6900,7 @@ static int btrfs_getattr(struct vfsmount *mnt, { struct inode *inode = dentry->d_inode; generic_fillattr(inode, stat); - stat->dev = BTRFS_I(inode)->root->anon_super.s_dev; + stat->dev = BTRFS_I(inode)->root->anon_dev; stat->blksize = PAGE_CACHE_SIZE; stat->blocks = (inode_get_bytes(inode) + BTRFS_I(inode)->delalloc_bytes) >> 9; |