This is a note to let you know that I've just added the patch titled
nfsd: revert v2 half of "nfsd: don't return high mode bits"
to the 3.14-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:
nfsd-revert-v2-half-of-nfsd-don-t-return-high-mode-bits.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 082f31a2169bd639785e45bf252f3d5bce0303c6 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <[email protected]>
Date: Thu, 3 Apr 2014 15:10:35 -0400
Subject: nfsd: revert v2 half of "nfsd: don't return high mode bits"
From: "J. Bruce Fields" <[email protected]>
commit 082f31a2169bd639785e45bf252f3d5bce0303c6 upstream.
This reverts the part of commit 6e14b46b91fee8a049b0940333ce13a820beaaa5
that changes NFSv2 behavior.
Mark Lord found that it broke nfs-root for Linux clients, because it
broke NFSv2.
In fact, from RFC 1094:
"Notice that the file type is specified both in the mode bits
and in the file type. This is really a bug in the protocol and
will be fixed in future versions."
So NFSv2 clients really are expected to depend on the high bits of the
mode.
Reported-by: Mark Lord <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: J. Bruce Fields <[email protected]>
Cc: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/nfsd/nfsxdr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -152,7 +152,7 @@ encode_fattr(struct svc_rqst *rqstp, __b
type = (stat->mode & S_IFMT);
*p++ = htonl(nfs_ftypes[type >> 12]);
- *p++ = htonl((u32) (stat->mode & S_IALLUGO));
+ *p++ = htonl((u32) stat->mode);
*p++ = htonl((u32) stat->nlink);
*p++ = htonl((u32) from_kuid(&init_user_ns, stat->uid));
*p++ = htonl((u32) from_kgid(&init_user_ns, stat->gid));
Patches currently in stable-queue which might be from [email protected] are
queue-3.14/nfsd4-fix-test_stateid-error-reply-encoding.patch
queue-3.14/nfsd4-leave-reply-buffer-space-for-failed-setattr.patch
queue-3.14/nfsd4-session-needs-room-for-following-op-to-error-out.patch
queue-3.14/nfsd4-buffer-length-check-for-suppattr_exclcreat.patch
queue-3.14/nfsd-revert-v2-half-of-nfsd-don-t-return-high-mode-bits.patch
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