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authorYan, Zheng <zheng.yan@oracle.com>2010-05-16 18:49:58 +0400
committerChris Mason <chris.mason@oracle.com>2010-05-25 18:34:52 +0400
commit8929ecfa50f266163832eeacfbc3642ed5eb83b6 (patch)
treee0177748af36d49d5f652cff0e421a8268cf7194 /fs/btrfs/ioctl.c
parent0ca1f7ceb1991099ed5273885ebcf4323948c72e (diff)
downloadlinux-8929ecfa50f266163832eeacfbc3642ed5eb83b6.tar.xz
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.c10
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);