From: Christoph Hellwig Date: Tue, 17 Jul 2007 11:04:32 +0000 (-0700) Subject: knfsd: exportfs: move acceptable check into find_acceptable_alias X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fb66a1989c8abc3015aa334f617658b277e5fe98;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git knfsd: exportfs: move acceptable check into find_acceptable_alias All callers of find_acceptable_alias check if the current dentry is acceptable before looking for other acceptable aliases using find_acceptable_alias. Move the check into find_acceptable_alias to make the code a little more dense and add a comment to find_acceptable_alias that documents its intent. Signed-off-by: Christoph Hellwig Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c index abf0a316aa1..085d6c547f4 100644 --- a/fs/exportfs/expfs.c +++ b/fs/exportfs/expfs.c @@ -37,6 +37,9 @@ static int exportfs_get_name(struct dentry *dir, char *name, return get_name(dir, name, child); } +/* + * Check if the dentry or any of it's aliases is acceptable. + */ static struct dentry * find_acceptable_alias(struct dentry *result, int (*acceptable)(void *context, struct dentry *dentry), @@ -44,6 +47,9 @@ find_acceptable_alias(struct dentry *result, { struct dentry *dentry, *toput = NULL; + if (acceptable(context, result)) + return result; + spin_lock(&dcache_lock); list_for_each_entry(dentry, &result->d_inode->i_dentry, d_alias) { dget_locked(dentry); @@ -126,9 +132,6 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent, target_dir = dget(result); } else { - if (acceptable(context, result)) - return result; - alias = find_acceptable_alias(result, acceptable, context); if (alias) return alias; @@ -289,9 +292,6 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent, } } dput(target_dir); - /* now result is properly connected, it is our best bet */ - if (acceptable(context, result)) - return result; alias = find_acceptable_alias(result, acceptable, context); if (alias)