From: Paulo Alcantara <pc@manguebit.com>
Date: Fri, 19 Jan 2024 04:08:29 +0000 (-0300)
Subject: smb: client: don't clobber ->i_rdev from cached reparse points
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=66c9314b61ed5b7bfcff0d89359aa0f975c0ab53;p=users%2Fjedix%2Flinux-maple.git

smb: client: don't clobber ->i_rdev from cached reparse points

Don't clobber ->i_rdev from valid reparse inodes over readdir(2) as it
can't be provided by query dir responses.

Signed-off-by: Paulo Alcantara <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c
index e24684112ab0..94255401b38d 100644
--- a/fs/smb/client/readdir.c
+++ b/fs/smb/client/readdir.c
@@ -133,14 +133,14 @@ retry:
 				 * Query dir responses don't provide enough
 				 * information about reparse points other than
 				 * their reparse tags.  Save an invalidation by
-				 * not clobbering the existing mode, size and
-				 * symlink target (if any) when reparse tag and
-				 * ctime haven't changed.
+				 * not clobbering some existing attributes when
+				 * reparse tag and ctime haven't changed.
 				 */
 				rc = 0;
 				if (fattr->cf_cifsattrs & ATTR_REPARSE) {
 					if (likely(reparse_inode_match(inode, fattr))) {
 						fattr->cf_mode = inode->i_mode;
+						fattr->cf_rdev = inode->i_rdev;
 						fattr->cf_eof = CIFS_I(inode)->server_eof;
 						fattr->cf_symlink_target = NULL;
 					} else {