This is a note to let you know that I've just added the patch titled
nfs: fix v4.2 SEEK on files over 2 gigs
to the 4.2-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:
nfs-fix-v4.2-seek-on-files-over-2-gigs.patch
and it can be found in the queue-4.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 306a5549355966e480e0dcacdc6b9321d153e0c0 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
Date: Wed, 16 Sep 2015 17:21:27 -0400
Subject: nfs: fix v4.2 SEEK on files over 2 gigs
From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
commit 306a5549355966e480e0dcacdc6b9321d153e0c0 upstream.
We're incorrectly assigning a loff_t return to an int. If SEEK_HOLE or
SEEK_DATA returns an offset over 2^31 then the application will see a
weird lseek() result (usually -EIO).
Fixes: bdcc2cd14e4e "NFSv4.2: handle NFS-specific llseek errors"
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
Reviewed-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/nfs/nfs42proc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -175,10 +175,12 @@ loff_t nfs42_proc_llseek(struct file *fi
{
struct nfs_server *server = NFS_SERVER(file_inode(filep));
struct nfs4_exception exception = { };
- int err;
+ loff_t err;
do {
err = _nfs42_proc_llseek(filep, offset, whence);
+ if (err >= 0)
+ break;
if (err == -ENOTSUPP)
return -EOPNOTSUPP;
err = nfs4_handle_exception(server, err, &exception);
Patches currently in stable-queue which might be from bfields@xxxxxxxxxx are
queue-4.2/svcrdma-fix-send_reply-scatter-gather-set-up.patch
queue-4.2/nfs-fix-v4.2-seek-on-files-over-2-gigs.patch
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