From 5e2a4b25da232a2f4ce264a4b2ae113d0b2a799c Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Wed, 20 Mar 2013 13:21:10 +0000
Subject: [PATCH] btrfs: deprecate subvolrootid mount option
This mount option was a workaround when subvol= assumed path relative
to the default subvolume, not the toplevel one. This was fixed long time
ago and subvolrootid has no effect.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
---
fs/btrfs/super.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 3fd4f2c3d529..3c404b8e83bb 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -643,7 +643,7 @@ out:
*/
static int btrfs_parse_early_options(const char *options, fmode_t flags,
void *holder, char **subvol_name, u64 *subvol_objectid,
- u64 *subvol_rootid, struct btrfs_fs_devices **fs_devices)
+ struct btrfs_fs_devices **fs_devices)
{
substring_t args[MAX_OPT_ARGS];
char *device_name, *opts, *orig, *p;
@@ -686,16 +686,8 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags,
}
break;
case Opt_subvolrootid:
- intarg = 0;
- error = match_int(&args[0], &intarg);
- if (!error) {
- /* we want the original fs_tree */
- if (!intarg)
- *subvol_rootid =
- BTRFS_FS_TREE_OBJECTID;
- else
- *subvol_rootid = intarg;
- }
+ printk(KERN_WARNING
+ "btrfs: 'subvolrootid' mount option is deprecated and has no effect\n");
break;
case Opt_device:
device_name = match_strdup(&args[0]);
@@ -1073,7 +1065,6 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
fmode_t mode = FMODE_READ;
char *subvol_name = NULL;
u64 subvol_objectid = 0;
- u64 subvol_rootid = 0;
int error = 0;
if (!(flags & MS_RDONLY))
@@ -1081,7 +1072,7 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
error = btrfs_parse_early_options(data, mode, fs_type,
&subvol_name, &subvol_objectid,
- &subvol_rootid, &fs_devices);
+ &fs_devices);
if (error) {
kfree(subvol_name);
return ERR_PTR(error);
--
2.34.1