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[3.13.y-ckt,stable] Patch "fuse: notify: don't move pages" has been added to staging queue

Message ID 1428446920-32314-1-git-send-email-kamal@canonical.com
State New
Headers show

Commit Message

Kamal Mostafa April 7, 2015, 10:48 p.m. UTC
This is a note to let you know that I have just added a patch titled

    fuse: notify: don't move pages

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11-ckt19.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

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From 0c6bdae01a521d89a602424bd6975071313181c0 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Thu, 26 Feb 2015 11:45:47 +0100
Subject: fuse: notify: don't move pages

commit 0d2783626a53d4c922f82d51fa675cb5d13f0d36 upstream.

fuse_try_move_page() is not prepared for replacing pages that have already
been read.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/fuse/dev.c | 3 +++
 1 file changed, 3 insertions(+)

--
1.9.1
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Patch

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index fa8cb4b..9f4119f 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1725,6 +1725,9 @@  copy_finish:
 static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
 		       unsigned int size, struct fuse_copy_state *cs)
 {
+	/* Don't try to move pages (yet) */
+	cs->move_pages = 0;
+
 	switch (code) {
 	case FUSE_NOTIFY_POLL:
 		return fuse_notify_poll(fc, size, cs);