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kill dentry_update_name_case()

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the last user is gone

Spotted-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2018-06-23 17:16:44 -04:00
parent ce397d215c
commit 63a67a926e
2 changed files with 0 additions and 29 deletions
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27
fs/dcache.c
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@ -2676,33 +2676,6 @@ struct dentry *d_exact_alias(struct dentry *entry, struct inode *inode)
} }
EXPORT_SYMBOL(d_exact_alias); EXPORT_SYMBOL(d_exact_alias);
/**
* dentry_update_name_case - update case insensitive dentry with a new name
* @dentry: dentry to be updated
* @name: new name
*
* Update a case insensitive dentry with new case of name.
*
* dentry must have been returned by d_lookup with name @name. Old and new
* name lengths must match (ie. no d_compare which allows mismatched name
* lengths).
*
* Parent inode i_mutex must be held over d_lookup and into this call (to
* keep renames and concurrent inserts, and readdir(2) away).
*/
void dentry_update_name_case(struct dentry *dentry, const struct qstr *name)
{
BUG_ON(!inode_is_locked(dentry->d_parent->d_inode));
BUG_ON(dentry->d_name.len != name->len); /* d_lookup gives this */
spin_lock(&dentry->d_lock);
write_seqcount_begin(&dentry->d_seq);
memcpy((unsigned char *)dentry->d_name.name, name->name, name->len);
write_seqcount_end(&dentry->d_seq);
spin_unlock(&dentry->d_lock);
}
EXPORT_SYMBOL(dentry_update_name_case);
static void swap_names(struct dentry *dentry, struct dentry *target) static void swap_names(struct dentry *dentry, struct dentry *target)
{ {
if (unlikely(dname_external(target))) { if (unlikely(dname_external(target))) {

2
include/linux/dcache.h
View File

@ -271,8 +271,6 @@ extern void d_rehash(struct dentry *);
extern void d_add(struct dentry *, struct inode *); extern void d_add(struct dentry *, struct inode *);
extern void dentry_update_name_case(struct dentry *, const struct qstr *);
/* used for rename() and baskets */ /* used for rename() and baskets */
extern void d_move(struct dentry *, struct dentry *); extern void d_move(struct dentry *, struct dentry *);
extern void d_exchange(struct dentry *, struct dentry *); extern void d_exchange(struct dentry *, struct dentry *);