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Commit 6ff48ce0 authored by David Sterba's avatar David Sterba
Browse files

btrfs: send: use vmalloc only as fallback for send_buf 



Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 779bf3fe

fs/btrfs/send.c

+7 −4
Original line number Diff line number Diff line
@@ -6028,11 +6028,14 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_) 
	sctx->clone_roots_cnt = arg->clone_sources_count;



	sctx->send_max_size = BTRFS_SEND_BUF_SIZE;

	sctx->send_buf = kmalloc(sctx->send_max_size, GFP_KERNEL | __GFP_NOWARN);

	if (!sctx->send_buf) {

		sctx->send_buf = vmalloc(sctx->send_max_size);

		if (!sctx->send_buf) {

			ret = -ENOMEM;

			goto out;

		}

	}



	sctx->read_buf = vmalloc(BTRFS_SEND_READ_SIZE);

	if (!sctx->read_buf) {
@@ -6220,7 +6223,7 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_) 
			fput(sctx->send_filp);



		vfree(sctx->clone_roots);

		vfree(sctx->send_buf);

		kvfree(sctx->send_buf);

		vfree(sctx->read_buf);



		name_cache_free(sctx);