This is a note to let you know that I've just added the patch titled
ext4: check return value of kstrtoull correctly in reserved_clusters_store
to the 4.9-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:
ext4-check-return-value-of-kstrtoull-correctly-in-reserved_clusters_store.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@xxxxxxxxxxxxxxx> know about it.
>From 1ea1516fbbab2b30bf98c534ecaacba579a35208 Mon Sep 17 00:00:00 2001
From: Chao Yu <yuchao0@xxxxxxxxxx>
Date: Fri, 23 Jun 2017 01:08:22 -0400
Subject: ext4: check return value of kstrtoull correctly in reserved_clusters_store
From: Chao Yu <yuchao0@xxxxxxxxxx>
commit 1ea1516fbbab2b30bf98c534ecaacba579a35208 upstream.
kstrtoull returns 0 on success, however, in reserved_clusters_store we
will return -EINVAL if kstrtoull returns 0, it makes us fail to update
reserved_clusters value through sysfs.
Fixes: 76d33bca5581b1dd5c3157fa168db849a784ada4
Signed-off-by: Chao Yu <yuchao0@xxxxxxxxxx>
Signed-off-by: Miao Xie <miaoxie@xxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/sysfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -100,7 +100,7 @@ static ssize_t reserved_clusters_store(s
int ret;
ret = kstrtoull(skip_spaces(buf), 0, &val);
- if (!ret || val >= clusters)
+ if (ret || val >= clusters)
return -EINVAL;
atomic64_set(&sbi->s_resv_clusters, val);
Patches currently in stable-queue which might be from yuchao0@xxxxxxxxxx are
queue-4.9/ext4-check-return-value-of-kstrtoull-correctly-in-reserved_clusters_store.patch