1 files changed, 32 insertions, 2 deletions

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 8c0e4b92574f..aedaeba82ae5 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -398,7 +398,7 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt,
 }
 
 /**
- *      sysfs_add_one - add sysfs_dirent to parent
+ *      __sysfs_add_one - add sysfs_dirent to parent without warning
  *      @acxt: addrm context to use
  *      @sd: sysfs_dirent to be added
  *
@@ -417,7 +417,7 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt,
  *      0 on success, -EEXIST if entry with the given name already
  *      exists.
  */
-int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
+int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 {
         if (sysfs_find_dirent(acxt->parent_sd, sd->s_name))
                 return -EEXIST;
@@ -435,6 +435,36 @@ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 }
 
 /**
+ *      sysfs_add_one - add sysfs_dirent to parent
+ *      @acxt: addrm context to use
+ *      @sd: sysfs_dirent to be added
+ *
+ *      Get @acxt->parent_sd and set sd->s_parent to it and increment
+ *      nlink of parent inode if @sd is a directory and link into the
+ *      children list of the parent.
+ *
+ *      This function should be called between calls to
+ *      sysfs_addrm_start() and sysfs_addrm_finish() and should be
+ *      passed the same @acxt as passed to sysfs_addrm_start().
+ *
+ *      LOCKING:
+ *      Determined by sysfs_addrm_start().
+ *
+ *      RETURNS:
+ *      0 on success, -EEXIST if entry with the given name already
+ *      exists.
+ */
+int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
+{
+        int ret;
+
+        ret = __sysfs_add_one(acxt, sd);
+        WARN(ret == -EEXIST, KERN_WARNING "sysfs: duplicate filename '%s' "
+                       "can not be created\n", sd->s_name);
+        return ret;
+}
+
+/**
  *      sysfs_remove_one - remove sysfs_dirent from parent
  *      @acxt: addrm context to use
  *      @sd: sysfs_dirent to be removed