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-rw-r--r--fs/sysfs/inode.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index f95966847a81..3756e152285a 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -197,62 +197,6 @@ void sysfs_instantiate(struct dentry *dentry, struct inode *inode)
d_instantiate(dentry, inode);
}
-/**
- * sysfs_drop_dentry - drop dentry for the specified sysfs_dirent
- * @sd: target sysfs_dirent
- *
- * Drop dentry for @sd. @sd must have been unlinked from its
- * parent on entry to this function such that it can't be looked
- * up anymore.
- *
- * @sd->s_dentry which is protected with sysfs_assoc_lock points
- * to the currently associated dentry but we're not holding a
- * reference to it and racing with dput(). Grab dcache_lock and
- * verify dentry before dropping it. If @sd->s_dentry is NULL or
- * dput() beats us, no need to bother.
- */
-void sysfs_drop_dentry(struct sysfs_dirent *sd)
-{
- struct dentry *dentry = NULL;
- struct inode *inode;
-
- /* We're not holding a reference to ->s_dentry dentry but the
- * field will stay valid as long as sysfs_assoc_lock is held.
- */
- spin_lock(&sysfs_assoc_lock);
- spin_lock(&dcache_lock);
-
- /* drop dentry if it's there and dput() didn't kill it yet */
- if (sd->s_dentry && sd->s_dentry->d_inode) {
- dentry = dget_locked(sd->s_dentry);
- spin_lock(&dentry->d_lock);
- __d_drop(dentry);
- spin_unlock(&dentry->d_lock);
- }
-
- spin_unlock(&dcache_lock);
- spin_unlock(&sysfs_assoc_lock);
-
- dput(dentry);
- /* XXX: unpin if directory, this will go away soon */
- if (sysfs_type(sd) == SYSFS_DIR)
- dput(dentry);
-
- /* adjust nlink and update timestamp */
- inode = ilookup(sysfs_sb, sd->s_ino);
- if (inode) {
- mutex_lock(&inode->i_mutex);
-
- inode->i_ctime = CURRENT_TIME;
- drop_nlink(inode);
- if (sysfs_type(sd) == SYSFS_DIR)
- drop_nlink(inode);
-
- mutex_unlock(&inode->i_mutex);
- iput(inode);
- }
-}
-
int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name)
{
struct sysfs_addrm_cxt acxt;