Merge "block: test-iosched: Restrict number of bios in the test request" (027647a4) · Commits · e / devices / android_kernel_xiaomi_markw

block/test-iosched.c

+8 −1

Original line number	Diff line number	Diff line
		/* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2012-2015, 2017 The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -316,6 +316,13 @@ struct test_request *test_iosched_create_test_req(
		goto err;
		}

		/* Restrict num_bios value as it may lead to bios_buffer overflow */
		if (num_bios >= BLK_MAX_SEGMENTS) {
		pr_warn("%s: num_bios %d is changed to BLK_MAX_SEGMENTS\n",
		__func__, num_bios);
		num_bios = BLK_MAX_SEGMENTS;
		}

		test_rq->buf_size = TEST_BIO_SIZE * num_bios;
		test_rq->wr_rd_data_pattern = pattern;