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

nfsd4: permit layoutget of executable-only files

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: nfsd4-permit-layoutget-of-executable-only-files.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 foo@baz Thu Mar 22 14:40:24 CET 2018

From: Benjamin Coddington bcodding@redhat.com Date: Tue, 19 Dec 2017 09:35:25 -0500 Subject: nfsd4: permit layoutget of executable-only files

From: Benjamin Coddington bcodding@redhat.com

[ Upstream commit 66282ec1cf004c09083c29cb5e49019037937bbd ]

Clients must be able to read a file in order to execute it, and for pNFS that means the client needs to be able to perform a LAYOUTGET on the file.

This behavior for executable-only files was added for OPEN in commit a043226bc140 "nfsd4: permit read opens of executable-only files".

This fixes up xfstests generic/126 on block/scsi layouts.

Signed-off-by: Benjamin Coddington bcodding@redhat.com Signed-off-by: J. Bruce Fields bfields@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/nfsd/nfs4proc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1338,14 +1338,14 @@ nfsd4_layoutget(struct svc_rqst *rqstp, const struct nfsd4_layout_ops *ops; struct nfs4_layout_stateid *ls; __be32 nfserr; - int accmode; + int accmode = NFSD_MAY_READ_IF_EXEC;

switch (lgp->lg_seg.iomode) { case IOMODE_READ: - accmode = NFSD_MAY_READ; + accmode |= NFSD_MAY_READ; break; case IOMODE_RW: - accmode = NFSD_MAY_READ | NFSD_MAY_WRITE; + accmode |= NFSD_MAY_READ | NFSD_MAY_WRITE; break; default: dprintk("%s: invalid iomode %d\n",

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

queue-4.9/nfsd4-permit-layoutget-of-executable-only-files.patch queue-4.9/nfs-fix-missing-pg_cleanup-after-nfs_pageio_cond_complete.patch