Commit 83085935 authored by Misono, Tomohiro's avatar Misono, Tomohiro Committed by David Sterba

btrfs: remove unused setup_root_args()

Since setup_root_args() is not used anymore, just remove it.
Signed-off-by: default avatarTomohiro Misono <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent d7407606
......@@ -1407,42 +1407,6 @@ static inline int is_subvolume_inode(struct inode *inode)
return 0;
}
/*
* This will add subvolid=0 to the argument string while removing any subvol=
* and subvolid= arguments to make sure we get the top-level root for path
* walking to the subvol we want.
*/
static char *setup_root_args(char *args)
{
char *buf, *dst, *sep;
if (!args)
return kstrdup("subvolid=0", GFP_KERNEL);
/* The worst case is that we add ",subvolid=0" to the end. */
buf = dst = kmalloc(strlen(args) + strlen(",subvolid=0") + 1,
GFP_KERNEL);
if (!buf)
return NULL;
while (1) {
sep = strchrnul(args, ',');
if (!strstarts(args, "subvol=") &&
!strstarts(args, "subvolid=")) {
memcpy(dst, args, sep - args);
dst += sep - args;
*dst++ = ',';
}
if (*sep)
args = sep + 1;
else
break;
}
strcpy(dst, "subvolid=0");
return buf;
}
static struct dentry *mount_subvol(const char *subvol_name, u64 subvol_objectid,
int flags, const char *device_name,
char *data, struct vfsmount *mnt)
......
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