From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yang Xu Date: Thu, 2 Apr 2020 23:06:30 +0800 Subject: [LTP] [PATCH v1 10/10] syscalls/ioctl_loop08: Add LOOP_SET/GET_STATUS64 sizelimit field test In-Reply-To: <1585839990-19923-1-git-send-email-xuyang2018.jy@cn.fujitsu.com> References: <1585839990-19923-1-git-send-email-xuyang2018.jy@cn.fujitsu.com> Message-ID: <1585839990-19923-11-git-send-email-xuyang2018.jy@cn.fujitsu.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it Test its lo_sizelimit field. If lo_sizelimit is 0,it means max available. If sizelimit is less than loop_size, loopsize will be truncated. Signed-off-by: Yang Xu --- runtest/syscalls | 1 + testcases/kernel/syscalls/ioctl/.gitignore | 1 + .../kernel/syscalls/ioctl/ioctl_loop08.c | 96 +++++++++++++++++++ 3 files changed, 98 insertions(+) create mode 100644 testcases/kernel/syscalls/ioctl/ioctl_loop08.c diff --git a/runtest/syscalls b/runtest/syscalls index 0e4dbaa77..d88848cb9 100644 --- a/runtest/syscalls +++ b/runtest/syscalls @@ -534,6 +534,7 @@ ioctl_loop04 ioctl_loop04 ioctl_loop05 ioctl_loop05 ioctl_loop06 ioctl_loop06 ioctl_loop07 ioctl_loop07 +ioctl_loop08 ioctl_loop08 ioctl_ns01 ioctl_ns01 ioctl_ns02 ioctl_ns02 diff --git a/testcases/kernel/syscalls/ioctl/.gitignore b/testcases/kernel/syscalls/ioctl/.gitignore index 3a3d49adc..97134aa0b 100644 --- a/testcases/kernel/syscalls/ioctl/.gitignore +++ b/testcases/kernel/syscalls/ioctl/.gitignore @@ -13,6 +13,7 @@ /ioctl_loop05 /ioctl_loop06 /ioctl_loop07 +/ioctl_loop08 /ioctl_ns01 /ioctl_ns02 /ioctl_ns03 diff --git a/testcases/kernel/syscalls/ioctl/ioctl_loop08.c b/testcases/kernel/syscalls/ioctl/ioctl_loop08.c new file mode 100644 index 000000000..37e6c02b3 --- /dev/null +++ b/testcases/kernel/syscalls/ioctl/ioctl_loop08.c @@ -0,0 +1,96 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2020 FUJITSU LIMITED. All rights reserved. + * Author: Yang Xu + * + * This is a basic ioctl test about loopdevice LOOP_SET_STATUS64 + * and LOOP_GET_STATUS64. + * Test its lo_sizelimit field. If lo_sizelimit is 0,it means max + * available. If sizelimit is less than loop_size, loopsize will + * be truncated. + */ + +#include +#include +#include +#include +#include "ioctl_loop_support.h" +#include "lapi/loop.h" +#include "tst_test.h" + +static char dev_path[1024], sys_loop_sizepath[1024], sys_loop_sizelimitpath[1024]; +static int dev_num, dev_fd, file_fd, attach_flag; + +static struct tcase { + unsigned int set_sizelimit; + unsigned int exp_loopsize; + char *message; +} tcases[] = { + {1024 * 4096, 2048, "When sizelimit is greater than loopsize "}, + {1024 * 512, 1024, "When sizelimit is less than loopsize"}, +}; + +static void verify_ioctl_loop(unsigned int n) +{ + struct tcase *tc = &tcases[n]; + struct loop_info64 loopinfo, loopinfoget; + + tst_res(TINFO, "%s", tc->message); + memset(&loopinfo, 0, sizeof(loopinfo)); + memset(&loopinfoget, 0, sizeof(loopinfoget)); + + loopinfo.lo_sizelimit = tc->set_sizelimit; + safe_set_status64(dev_fd, loopinfo); + + check_sys_value(sys_loop_sizepath, tc->exp_loopsize); + check_sys_value(sys_loop_sizelimitpath, tc->set_sizelimit); + SAFE_IOCTL(dev_fd, LOOP_GET_STATUS64, &loopinfoget); + if (loopinfoget.lo_sizelimit == tc->set_sizelimit) + tst_res(TPASS, "LOOP_GET_STATUS64 gets correct lo_sizelimit(%d)", tc->set_sizelimit); + else + tst_res(TFAIL, "LOOP_GET_STATUS64 gets wrong lo_sizelimit(%llu), expect %d", + loopinfoget.lo_sizelimit, tc->set_sizelimit); + /*Reset*/ + loopinfo.lo_sizelimit = 0; + safe_set_status64(dev_fd, loopinfo); +} + +static void setup(void) +{ + dev_num = tst_find_free_loopdev(dev_path, sizeof(dev_path)); + if (dev_num < 0) + tst_brk(TBROK, "Failed to find free loop device"); + + tst_fill_file("test.img", 0, 1024, 1024); + tst_attach_device(dev_path, "test.img"); + attach_flag = 1; + + sprintf(sys_loop_sizepath, "/sys/block/loop%d/size", dev_num); + sprintf(sys_loop_sizelimitpath, "/sys/block/loop%d/loop/sizelimit", dev_num); + + dev_fd = SAFE_OPEN(dev_path, O_RDWR); + tst_res(TINFO, "original loop size 2048 sectors"); +} + +static void cleanup(void) +{ + if (dev_fd > 0) + SAFE_CLOSE(dev_fd); + if (file_fd > 0) + SAFE_CLOSE(file_fd); + if (attach_flag) + tst_detach_device(dev_path); +} + +static struct tst_test test = { + .setup = setup, + .cleanup = cleanup, + .test = verify_ioctl_loop, + .tcnt = ARRAY_SIZE(tcases), + .needs_root = 1, + .needs_tmpdir = 1, + .needs_drivers = (const char *const []) { + "loop", + NULL + } +}; -- 2.23.0