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Mon, 20 Nov 2023 03:19:41 -0800 (PST) Received: from dw-tp.c4p-in.ibmmobiledemo.com ([129.41.58.19]) by smtp.gmail.com with ESMTPSA id k10-20020aa788ca000000b006cb6ba5fe72sm3056158pff.122.2023.11.20.03.19.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Nov 2023 03:19:41 -0800 (PST) From: "Ritesh Harjani (IBM)" To: fstests@vger.kernel.org Cc: linux-ext4@vger.kernel.org, Jan Kara , Gao Xiang , Ojaswin Mujoo , "Ritesh Harjani (IBM)" Subject: [PATCHv3 1/2] aio-dio-write-verify: Add sync and noverify option Date: Mon, 20 Nov 2023 16:49:33 +0530 Message-ID: <8379b5df9f70a1d75692e029a565199e98a535e8.1700478575.git.ritesh.list@gmail.com> X-Mailer: git-send-email 2.41.0 Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This patch adds -S for O_SYNC and -N for noverify option to aio-dio-write-verify test. We will use this for integrity verification test for aio-dio. Signed-off-by: Ritesh Harjani (IBM) Reviewed-by: Zorro Lang --- src/aio-dio-regress/aio-dio-write-verify.c | 29 ++++++++++++++++------ 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/src/aio-dio-regress/aio-dio-write-verify.c b/src/aio-dio-regress/aio-dio-write-verify.c index dabbfacd..a7ca8307 100644 --- a/src/aio-dio-regress/aio-dio-write-verify.c +++ b/src/aio-dio-regress/aio-dio-write-verify.c @@ -34,13 +34,16 @@ void usage(char *progname) { - fprintf(stderr, "usage: %s [-t truncsize ] <-a size=N,off=M [-a ...]> filename\n" + fprintf(stderr, "usage: %s [-t truncsize ] <-a size=N,off=M [-a ...]> [-S] [-N] filename\n" "\t-t truncsize: truncate the file to a special size before AIO wirte\n" "\t-a: specify once AIO write size and startoff, this option can be specified many times, but less than 128\n" "\t\tsize=N: AIO write size\n" "\t\toff=M: AIO write startoff\n" - "e.g: %s -t 4608 -a size=4096,off=512 -a size=4096,off=4608 filename\n", - progname, progname); + "\t-S: uses O_SYNC flag for open. By default O_SYNC is not used\n" + "\t-N: no_verify: means no write verification. By default noverify is false\n" + "e.g: %s -t 4608 -a size=4096,off=512 -a size=4096,off=4608 filename\n" + "e.g: %s -t 1048576 -a size=1048576 -S -N filename\n", + progname, progname, progname); exit(1); } @@ -292,8 +295,10 @@ int main(int argc, char *argv[]) char *filename = NULL; int num_events = 0; off_t tsize = 0; + int o_sync = 0; + int no_verify = 0; - while ((c = getopt(argc, argv, "a:t:")) != -1) { + while ((c = getopt(argc, argv, "a:t:SN")) != -1) { char *endp; switch (c) { @@ -308,6 +313,12 @@ int main(int argc, char *argv[]) case 't': tsize = strtoul(optarg, &endp, 0); break; + case 'S': + o_sync = O_SYNC; + break; + case 'N': + no_verify = 1; + break; default: usage(argv[0]); } @@ -324,7 +335,7 @@ int main(int argc, char *argv[]) else usage(argv[0]); - fd = open(filename, O_DIRECT | O_CREAT | O_TRUNC | O_RDWR, 0600); + fd = open(filename, O_DIRECT | O_CREAT | O_TRUNC | O_RDWR | o_sync, 0600); if (fd == -1) { perror("open"); return 1; @@ -342,9 +353,11 @@ int main(int argc, char *argv[]) return 1; 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Mon, 20 Nov 2023 03:19:44 -0800 (PST) Received: from dw-tp.c4p-in.ibmmobiledemo.com ([129.41.58.19]) by smtp.gmail.com with ESMTPSA id k10-20020aa788ca000000b006cb6ba5fe72sm3056158pff.122.2023.11.20.03.19.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Nov 2023 03:19:44 -0800 (PST) From: "Ritesh Harjani (IBM)" To: fstests@vger.kernel.org Cc: linux-ext4@vger.kernel.org, Jan Kara , Gao Xiang , Ojaswin Mujoo , "Ritesh Harjani (IBM)" Subject: [PATCHv3 2/2] generic: Add integrity tests with synchronous directio Date: Mon, 20 Nov 2023 16:49:34 +0530 Message-ID: X-Mailer: git-send-email 2.41.0 In-Reply-To: <8379b5df9f70a1d75692e029a565199e98a535e8.1700478575.git.ritesh.list@gmail.com> References: <8379b5df9f70a1d75692e029a565199e98a535e8.1700478575.git.ritesh.list@gmail.com> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This test covers data & metadata integrity check with directio with o_sync flag and checks the file contents & size after sudden fileystem shutdown once the directio write is completed. ext4 directio after iomap conversion was broken in the sense that if the FS crashes after synchronous directio write, it's file size is not properly updated. This test adds a testcase to cover such scenario. Man page of open says that - O_SYNC provides synchronized I/O file integrity completion, meaning write operations will flush data and all associated metadata to the underlying hardware Reported-by: Gao Xiang Signed-off-by: Ritesh Harjani (IBM) Reviewed-by: Zorro Lang --- tests/generic/733 | 54 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/733.out | 22 ++++++++++++++++++ 2 files changed, 76 insertions(+) create mode 100755 tests/generic/733 create mode 100644 tests/generic/733.out diff --git a/tests/generic/733 b/tests/generic/733 new file mode 100755 index 00000000..18021e8a --- /dev/null +++ b/tests/generic/733 @@ -0,0 +1,54 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2023 IBM Corporation. All Rights Reserved. +# +# FS QA Test 471 +# +# Integrity test for O_SYNC with buff-io, dio, aio-dio with sudden shutdown. +# Based on a testcase reported by Gao Xiang +# + +. ./common/preamble +_begin_fstest auto quick shutdown aio + +# real QA test starts here +_supported_fs generic +_require_scratch +_require_scratch_shutdown +_require_aiodio aio-dio-write-verify + +_fixed_by_kernel_commit 91562895f803 \ + "ext4: properly sync file size update after O_SYNC direct IO" + +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount + +echo "T-1: Create a 1M file using buff-io & O_SYNC" +$XFS_IO_PROG -fs -c "pwrite -S 0x5a 0 1M" $SCRATCH_MNT/testfile.t1 > /dev/null 2>&1 +echo "T-1: Shutdown the fs suddenly" +_scratch_shutdown +echo "T-1: Cycle mount" +_scratch_cycle_mount +echo "T-1: File contents after cycle mount" +_hexdump $SCRATCH_MNT/testfile.t1 + +echo "T-2: Create a 1M file using O_DIRECT & O_SYNC" +$XFS_IO_PROG -fsd -c "pwrite -S 0x5a 0 1M" $SCRATCH_MNT/testfile.t2 > /dev/null 2>&1 +echo "T-2: Shutdown the fs suddenly" +_scratch_shutdown +echo "T-2: Cycle mount" +_scratch_cycle_mount +echo "T-2: File contents after cycle mount" +_hexdump $SCRATCH_MNT/testfile.t2 + +echo "T-3: Create a 1M file using AIO-DIO & O_SYNC" +$AIO_TEST -a size=1048576 -S -N $SCRATCH_MNT/testfile.t3 > /dev/null 2>&1 +echo "T-3: Shutdown the fs suddenly" +_scratch_shutdown +echo "T-3: Cycle mount" +_scratch_cycle_mount +echo "T-3: File contents after cycle mount" +_hexdump $SCRATCH_MNT/testfile.t3 + +status=0 +exit diff --git a/tests/generic/733.out b/tests/generic/733.out new file mode 100644 index 00000000..e0536a4e --- /dev/null +++ b/tests/generic/733.out @@ -0,0 +1,22 @@ +QA output created by 733 +T-1: Create a 1M file using buff-io & O_SYNC +T-1: Shutdown the fs suddenly +T-1: Cycle mount +T-1: File contents after cycle mount +000000 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a >ZZZZZZZZZZZZZZZZ< +* +100000 +T-2: Create a 1M file using O_DIRECT & O_SYNC +T-2: Shutdown the fs suddenly +T-2: Cycle mount +T-2: File contents after cycle mount +000000 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a >ZZZZZZZZZZZZZZZZ< +* +100000 +T-3: Create a 1M file using AIO-DIO & O_SYNC +T-3: Shutdown the fs suddenly +T-3: Cycle mount +T-3: File contents after cycle mount +000000 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a >ZZZZZZZZZZZZZZZZ< +* +100000