Commit 8eb2fd00 authored Sep 21, 2020 by Denis Efremov Committed by David Sterba Oct 07, 2020

btrfs: use kvzalloc() to allocate clone_roots in btrfs_ioctl_send()

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



Fixes: 818e010b ("btrfs: replace opencoded kvzalloc with the helper")
CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Denis Efremov <efremov@linux.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent c0a43603

fs/btrfs/send.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -7149,7 +7149,7 @@ 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;

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