diff options
| author | Yan Zheng | 2008-11-12 20:34:12 +0100 |
|---|---|---|
| committer | Chris Mason | 2008-11-12 20:34:12 +0100 |
| commit | c146afad2c7fea6a366d4945c1bab9b03880f526 (patch) | |
| tree | dd217139525a521895125843ca31f61cfbb49dca /fs/btrfs/inode.c | |
| parent | Btrfs: batch extent inserts/updates/deletions on the extent root (diff) | |
| download | kernel-qcow2-linux-c146afad2c7fea6a366d4945c1bab9b03880f526.tar.gz kernel-qcow2-linux-c146afad2c7fea6a366d4945c1bab9b03880f526.tar.xz kernel-qcow2-linux-c146afad2c7fea6a366d4945c1bab9b03880f526.zip | |
Btrfs: mount ro and remount support
This patch adds mount ro and remount support. The main
changes in patch are: adding btrfs_remount and related
helper function; splitting the transaction related code
out of close_ctree into btrfs_commit_super; updating
allocator to properly handle read only block group.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 2ed2deacde90..3e3620e69bb9 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1808,10 +1808,6 @@ void btrfs_orphan_cleanup(struct btrfs_root *root) struct inode *inode; int ret = 0, nr_unlink = 0, nr_truncate = 0; - /* don't do orphan cleanup if the fs is readonly. */ - if (root->fs_info->sb->s_flags & MS_RDONLY) - return; - path = btrfs_alloc_path(); if (!path) return; @@ -3050,7 +3046,7 @@ static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry, struct btrfs_root *root = bi->root; struct btrfs_root *sub_root = root; struct btrfs_key location; - int ret, new, do_orphan = 0; + int ret, new; if (dentry->d_name.len > BTRFS_NAME_LEN) return ERR_PTR(-ENAMETOOLONG); @@ -3076,13 +3072,9 @@ static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry, if (new && root != sub_root) { igrab(inode); sub_root->inode = inode; - do_orphan = 1; } } - if (unlikely(do_orphan)) - btrfs_orphan_cleanup(sub_root); - return d_splice_alias(inode, dentry); } @@ -3237,7 +3229,7 @@ int btrfs_write_inode(struct inode *inode, int wait) struct btrfs_trans_handle *trans; int ret = 0; - if (root->fs_info->closing > 1) + if (root->fs_info->btree_inode == inode) return 0; if (wait) { @@ -4625,6 +4617,9 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root) struct inode *inode; unsigned long flags; + if (root->fs_info->sb->s_flags & MS_RDONLY) + return -EROFS; + spin_lock_irqsave(&root->fs_info->delalloc_lock, flags); while(!list_empty(head)) { binode = list_entry(head->next, struct btrfs_inode, |