From 4f48d5da81ee7004a789c8aac2d0dfb2514c37f1 Mon Sep 17 00:00:00 2001 From: Xiubo Li Date: Mon, 16 May 2022 11:23:19 +0800 Subject: fs/dcache: export d_same_name() helper Compare dentry name with case-exact name, return true if names are same, or false. Signed-off-by: Xiubo Li Reviewed-by: Jeff Layton Reviewed-by: Luis Chamberlain Signed-off-by: Ilya Dryomov --- fs/dcache.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'fs') diff --git a/fs/dcache.c b/fs/dcache.c index 93f4f5ee07bf..a409312ee0df 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2247,10 +2247,16 @@ struct dentry *d_add_ci(struct dentry *dentry, struct inode *inode, } EXPORT_SYMBOL(d_add_ci); - -static inline bool d_same_name(const struct dentry *dentry, - const struct dentry *parent, - const struct qstr *name) +/** + * d_same_name - compare dentry name with case-exact name + * @parent: parent dentry + * @dentry: the negative dentry that was passed to the parent's lookup func + * @name: the case-exact name to be associated with the returned dentry + * + * Return: true if names are same, or false + */ +bool d_same_name(const struct dentry *dentry, const struct dentry *parent, + const struct qstr *name) { if (likely(!(parent->d_flags & DCACHE_OP_COMPARE))) { if (dentry->d_name.len != name->len) @@ -2261,6 +2267,7 @@ static inline bool d_same_name(const struct dentry *dentry, dentry->d_name.len, dentry->d_name.name, name) == 0; } +EXPORT_SYMBOL_GPL(d_same_name); /** * __d_lookup_rcu - search for a dentry (racy, store-free) -- cgit v1.2.3-59-g8ed1b