This is a note to let you know that I've just added the patch titled nfsd: update create verifier comment to the 5.10-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-update-create-verifier-comment.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 3e8ec11c86668f8970c79d5401684531df6f8e8e Author: J. Bruce Fields <bfields@xxxxxxxxxxxx> Date: Fri Oct 15 14:42:11 2021 -0400 nfsd: update create verifier comment [ Upstream commit 2336d696862186fd4a6ddd1ea0cb243b3e32847c ] I don't know if that Solaris behavior matters any more or if it's still possible to look up that bug ID any more. The XFS behavior's definitely still relevant, though; any but the most recent XFS filesystems will lose the top bits. Reported-by: Frank S. Filz <ffilzlnx@xxxxxxxxxxxxxx> Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx> Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 05b5f7e241e70..5b0abdf8de27e 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1431,7 +1431,8 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, if (nfsd_create_is_exclusive(createmode)) { /* solaris7 gets confused (bugid 4218508) if these have - * the high bit set, so just clear the high bits. If this is + * the high bit set, as do xfs filesystems without the + * "bigtime" feature. So just clear the high bits. If this is * ever changed to use different attrs for storing the * verifier, then do_open_lookup() will also need to be fixed * accordingly.