Patch "ceph: fix endianness of getattr mask in ceph_d_revalidate" has been added to the 4.9-stable tree

Patch "ceph: fix endianness of getattr mask in ceph_d_revalidate" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ceph: fix endianness of getattr mask in ceph_d_revalidate

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ceph-fix-endianness-of-getattr-mask-in-ceph_d_revalidate.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 1097680d759918ce4a8705381c0ab2ed7bd60cf1 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Thu, 12 Jan 2017 14:42:38 -0500
Subject: ceph: fix endianness of getattr mask in ceph_d_revalidate

From: Jeff Layton <jlayton@redhat.com>

commit 1097680d759918ce4a8705381c0ab2ed7bd60cf1 upstream.

sparse says:

    fs/ceph/dir.c:1248:50: warning: incorrect type in assignment (different base types)
    fs/ceph/dir.c:1248:50:    expected restricted __le32 [usertype] mask
    fs/ceph/dir.c:1248:50:    got int [signed] [assigned] mask

Fixes: 200fd27c8fa2 ("ceph: use lookup request to revalidate dentry")
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/ceph/dir.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1255,7 +1255,8 @@ static int ceph_d_revalidate(struct dent
 		struct ceph_mds_client *mdsc =
 			ceph_sb_to_client(dir->i_sb)->mdsc;
 		struct ceph_mds_request *req;
-		int op, mask, err;
+		int op, err;
+		u32 mask;
 
 		if (flags & LOOKUP_RCU)
 			return -ECHILD;
@@ -1270,7 +1271,7 @@ static int ceph_d_revalidate(struct dent
 			mask = CEPH_STAT_CAP_INODE | CEPH_CAP_AUTH_SHARED;
 			if (ceph_security_xattr_wanted(dir))
 				mask |= CEPH_CAP_XATTR_SHARED;
-			req->r_args.getattr.mask = mask;
+			req->r_args.getattr.mask = cpu_to_le32(mask);
 
 			err = ceph_mdsc_do_request(mdsc, NULL, req);
 			switch (err) {


Patches currently in stable-queue which might be from jlayton@redhat.com are

queue-4.9/ceph-fix-endianness-of-getattr-mask-in-ceph_d_revalidate.patch
queue-4.9/ceph-fix-endianness-bug-in-frag_tree_split_cmp.patch
queue-4.9/ceph-fix-bad-endianness-handling-in-parse_reply_info_extra.patch