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Commit c715e155 authored by Filipe Manana's avatar Filipe Manana Committed by Chris Mason
Browse files

Btrfs: send, build path string only once in send_hole 



There's no point building the path string in each iteration of the
send_hole loop, as it produces always the same string.

Signed-off-by: default avatarFilipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent 9a40f122

fs/btrfs/send.c

+3 −3
Original line number Diff line number Diff line
@@ -4436,14 +4436,14 @@ static int send_hole(struct send_ctx *sctx, u64 end) 
	p = fs_path_alloc();

	if (!p)

		return -ENOMEM;

	ret = get_cur_path(sctx, sctx->cur_ino, sctx->cur_inode_gen, p);

	if (ret < 0)

		goto tlv_put_failure;

	memset(sctx->read_buf, 0, BTRFS_SEND_READ_SIZE);

	while (offset < end) {

		len = min_t(u64, end - offset, BTRFS_SEND_READ_SIZE);



		ret = begin_cmd(sctx, BTRFS_SEND_C_WRITE);

		if (ret < 0)

			break;

		ret = get_cur_path(sctx, sctx->cur_ino, sctx->cur_inode_gen, p);

		if (ret < 0)

			break;

		TLV_PUT_PATH(sctx, BTRFS_SEND_A_PATH, p);