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| author | Yan, Zheng <zheng.yan@oracle.com> | 2010-05-16 10:49:58 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-05-25 10:34:52 -0400 |
| commit | 8929ecfa50f266163832eeacfbc3642ed5eb83b6 (patch) | |
| tree | e0177748af36d49d5f652cff0e421a8268cf7194 /fs/btrfs/ioctl.c | |
| parent | 0ca1f7ceb1991099ed5273885ebcf4323948c72e (diff) | |
| download | lwn-8929ecfa50f266163832eeacfbc3642ed5eb83b6.tar.gz lwn-8929ecfa50f266163832eeacfbc3642ed5eb83b6.zip | |
Btrfs: Introduce global metadata reservation
Reserve metadata space for extent tree, checksum tree and root tree
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
| -rw-r--r-- | fs/btrfs/ioctl.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 6a706e691377..a0686658a3f6 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1341,8 +1341,10 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp) ret = -EPERM; goto out; } - btrfs_defrag_root(root, 0); - btrfs_defrag_root(root->fs_info->extent_root, 0); + ret = btrfs_defrag_root(root, 0); + if (ret) + goto out; + ret = btrfs_defrag_root(root->fs_info->extent_root, 0); break; case S_IFREG: if (!(file->f_mode & FMODE_WRITE)) { @@ -1372,9 +1374,11 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp) /* the rest are all set to zero by kzalloc */ range->len = (u64)-1; } - btrfs_defrag_file(file, range); + ret = btrfs_defrag_file(file, range); kfree(range); break; + default: + ret = -EINVAL; } out: mnt_drop_write(file->f_path.mnt); |