From mboxrd@z Thu Jan 1 00:00:00 1970 From: Li Wang Date: Thu, 2 Jan 2020 09:52:36 +0800 Subject: [LTP] [PATCH COMMITTED] tst_device: do sync() before reading test block device stat file Message-ID: <20200102015236.7400-1-liwang@redhat.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it To avoid FS deferred IO metadata/cache interferes test result, so we do sync simply before the tst_dev_bytes_written invocation. Signed-off-by: Li Wang Cc: Sumit Garg Cc: Yang Xu --- testcases/kernel/syscalls/fdatasync/fdatasync03.c | 2 ++ testcases/kernel/syscalls/fsync/fsync04.c | 2 ++ testcases/kernel/syscalls/sync/sync03.c | 2 ++ testcases/kernel/syscalls/syncfs/syncfs01.c | 2 ++ 4 files changed, 8 insertions(+) diff --git a/testcases/kernel/syscalls/fdatasync/fdatasync03.c b/testcases/kernel/syscalls/fdatasync/fdatasync03.c index ee50e75c9..032ac4b58 100644 --- a/testcases/kernel/syscalls/fdatasync/fdatasync03.c +++ b/testcases/kernel/syscalls/fdatasync/fdatasync03.c @@ -32,6 +32,8 @@ static void verify_fdatasync(void) fd = SAFE_OPEN(FNAME, O_RDWR|O_CREAT, MODE); + sync(); + tst_dev_bytes_written(tst_device->dev); tst_fill_fd(fd, 0, TST_MB, FILE_SIZE_MB); diff --git a/testcases/kernel/syscalls/fsync/fsync04.c b/testcases/kernel/syscalls/fsync/fsync04.c index c67fc5692..3c1f45e94 100644 --- a/testcases/kernel/syscalls/fsync/fsync04.c +++ b/testcases/kernel/syscalls/fsync/fsync04.c @@ -32,6 +32,8 @@ static void verify_fsync(void) fd = SAFE_OPEN(FNAME, O_RDWR|O_CREAT, MODE); + sync(); + tst_dev_bytes_written(tst_device->dev); tst_fill_fd(fd, 0, TST_MB, FILE_SIZE_MB); diff --git a/testcases/kernel/syscalls/sync/sync03.c b/testcases/kernel/syscalls/sync/sync03.c index a6f72d2ed..085ccfdeb 100644 --- a/testcases/kernel/syscalls/sync/sync03.c +++ b/testcases/kernel/syscalls/sync/sync03.c @@ -32,6 +32,8 @@ static void verify_sync(void) fd = SAFE_OPEN(FNAME, O_RDWR|O_CREAT, MODE); + sync(); + tst_dev_bytes_written(tst_device->dev); tst_fill_fd(fd, 0, TST_MB, FILE_SIZE_MB); diff --git a/testcases/kernel/syscalls/syncfs/syncfs01.c b/testcases/kernel/syscalls/syncfs/syncfs01.c index 051a19ea6..3cf404450 100644 --- a/testcases/kernel/syscalls/syncfs/syncfs01.c +++ b/testcases/kernel/syscalls/syncfs/syncfs01.c @@ -33,6 +33,8 @@ static void verify_syncfs(void) fd = SAFE_OPEN(FNAME, O_RDWR|O_CREAT, MODE); + sync(); + tst_dev_bytes_written(tst_device->dev); tst_fill_fd(fd, 0, TST_MB, FILE_SIZE_MB); -- 2.20.1