Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Denis Efremov <efremov@linux.com>
To:     David Sterba <dsterba@suse.com>
Cc:     Denis Efremov <efremov@linux.com>,
        Josef Bacik <josef@toxicpanda.com>, Chris Mason <clm@fb.com>,
        linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
        stable@vger.kernel.org
Subject: [PATCH 1/2] btrfs: use kvzalloc() to allocate clone_roots in btrfs_ioctl_send()
Date:   Mon, 21 Sep 2020 20:03:35 +0300
Message-Id: <20200921170336.82643-1-efremov@linux.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

btrfs_ioctl_send() used open-coded kvzalloc implementation earlier.
The code was accidentally replaced with kzalloc() call [1]. Restore
the original code by using kvzalloc() to allocate sctx->clone_roots.

[1] https://patchwork.kernel.org/patch/9757891/#20529627

Cc: stable@vger.kernel.org
Fixes: 818e010bf9d0 ("btrfs: replace opencoded kvzalloc with the helper")
Signed-off-by: Denis Efremov <efremov@linux.com>
---
 fs/btrfs/send.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index d9813a5b075a..c874ddda6252 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -7181,7 +7181,7 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
 
 	alloc_size = sizeof(struct clone_root) * (arg->clone_sources_count + 1);
 
-	sctx->clone_roots = kzalloc(alloc_size, GFP_KERNEL);
+	sctx->clone_roots = kvzalloc(alloc_size, GFP_KERNEL);
 	if (!sctx->clone_roots) {
 		ret = -ENOMEM;
 		goto out;
-- 
2.26.2