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btrfs: remove unused setup_root_args()
Since setup_root_args() is not used anymore, just remove it. Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
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1 changed files with 0 additions and 36 deletions
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@ -1407,42 +1407,6 @@ static inline int is_subvolume_inode(struct inode *inode)
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return 0;
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}
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/*
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* This will add subvolid=0 to the argument string while removing any subvol=
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* and subvolid= arguments to make sure we get the top-level root for path
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* walking to the subvol we want.
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*/
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static char *setup_root_args(char *args)
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{
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char *buf, *dst, *sep;
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if (!args)
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return kstrdup("subvolid=0", GFP_KERNEL);
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/* The worst case is that we add ",subvolid=0" to the end. */
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buf = dst = kmalloc(strlen(args) + strlen(",subvolid=0") + 1,
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GFP_KERNEL);
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if (!buf)
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return NULL;
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while (1) {
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sep = strchrnul(args, ',');
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if (!strstarts(args, "subvol=") &&
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!strstarts(args, "subvolid=")) {
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memcpy(dst, args, sep - args);
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dst += sep - args;
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*dst++ = ',';
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}
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if (*sep)
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args = sep + 1;
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else
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break;
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}
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strcpy(dst, "subvolid=0");
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return buf;
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}
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static struct dentry *mount_subvol(const char *subvol_name, u64 subvol_objectid,
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int flags, const char *device_name,
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char *data, struct vfsmount *mnt)
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