f2fs crypto: add filename encryption for f2fs_lookup

This patch implements filename encryption support for f2fs_lookup.

Note that, f2fs_find_entry should be outside of f2fs_(un)lock_op().

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index dd51d3f262b7..38e75fb1e488 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -284,23 +284,26 @@ process_inline:
 }
 
 struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
-				struct qstr *name, struct page **res_page)
+			struct f2fs_filename *fname, struct page **res_page)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
 	struct f2fs_inline_dentry *inline_dentry;
+	struct qstr name = FSTR_TO_QSTR(&fname->disk_name);
 	struct f2fs_dir_entry *de;
 	struct f2fs_dentry_ptr d;
 	struct page *ipage;
+	f2fs_hash_t namehash;
 
 	ipage = get_node_page(sbi, dir->i_ino);
 	if (IS_ERR(ipage))
 		return NULL;
 
+	namehash = f2fs_dentry_hash(&name);
+
 	inline_dentry = inline_data_addr(ipage);
 
 	make_dentry_ptr(NULL, &d, (void *)inline_dentry, 2);
-	de = find_target_dentry(name, NULL, &d);
-
+	de = find_target_dentry(fname, namehash, NULL, &d);
 	unlock_page(ipage);
 	if (de)
 		*res_page = ipage;