f2fs: fix dcache lookup of !casefolded directories

Do the name comparison for non-casefolded directories correctly.

This is analogous to ext4's commit 66883da1eee8 ("ext4: fix dcache
lookup of !casefolded directories").

Fixes: 2c2eb7a300cd ("f2fs: Support case-insensitive file name lookups")
Cc: <stable@vger.kernel.org> # v5.4+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index b56f6060c1a6b348f7a0bf02e4aedc0e876beeaa..aea9e2806144df1a55f2858ad07222cf3b7cb312 100644 (file)
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -1087,7 +1087,7 @@ static int f2fs_d_compare(const struct dentry *dentry, unsigned int len,
        if (!IS_CASEFOLDED(dentry->d_parent->d_inode)) {
                if (len != name->len)
                        return -1;
-               return memcmp(str, name, len);
+               return memcmp(str, name->name, len);
        }
 
        return f2fs_ci_compare(dentry->d_parent->d_inode, name, &qstr, false);