From bb09c8634b1e484b8840fb2384d55739bfcb68bd Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 10 Aug 2016 11:23:44 -0400 Subject: [PATCH] kernfs: remove kernfs_path_len() It doesn't have any in-kernel user and the same result can be obtained from kernfs_path(@kn, NULL, 0). Remove it. Signed-off-by: Tejun Heo Acked-by: Greg Kroah-Hartman Cc: Serge Hallyn --- fs/kernfs/dir.c | 23 ----------------------- include/linux/kernfs.h | 4 ---- 2 files changed, 27 deletions(-) diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c index 09242aaa8829..6e7fd37615f8 100644 --- a/fs/kernfs/dir.c +++ b/fs/kernfs/dir.c @@ -179,29 +179,6 @@ int kernfs_name(struct kernfs_node *kn, char *buf, size_t buflen) return ret; } -/** - * kernfs_path_len - determine the length of the full path of a given node - * @kn: kernfs_node of interest - * - * The returned length doesn't include the space for the terminating '\0'. - */ -size_t kernfs_path_len(struct kernfs_node *kn) -{ - size_t len = 0; - unsigned long flags; - - spin_lock_irqsave(&kernfs_rename_lock, flags); - - do { - len += strlen(kn->name) + 1; - kn = kn->parent; - } while (kn && kn->parent); - - spin_unlock_irqrestore(&kernfs_rename_lock, flags); - - return len; -} - /** * kernfs_path_from_node - build path of node @to relative to @from. * @from: parent kernfs_node relative to which we need to build the path diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index 4a02b1b49821..7056238fd9f5 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -269,7 +269,6 @@ static inline bool kernfs_ns_enabled(struct kernfs_node *kn) } int kernfs_name(struct kernfs_node *kn, char *buf, size_t buflen); -size_t kernfs_path_len(struct kernfs_node *kn); int kernfs_path_from_node(struct kernfs_node *root_kn, struct kernfs_node *kn, char *buf, size_t buflen); void pr_cont_kernfs_name(struct kernfs_node *kn); @@ -340,9 +339,6 @@ static inline bool kernfs_ns_enabled(struct kernfs_node *kn) static inline int kernfs_name(struct kernfs_node *kn, char *buf, size_t buflen) { return -ENOSYS; } -static inline size_t kernfs_path_len(struct kernfs_node *kn) -{ return 0; } - static inline int kernfs_path_from_node(struct kernfs_node *root_kn, struct kernfs_node *kn, char *buf, size_t buflen)