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Commit 63b18e4 fixed an issue in zpl_aio_write() to make sure that kiocb->ki_pos was updated correctly when opening a file with O_APPEND. Adding a test to verify O_APPEND functionality with lseek can make sure that all other distros/kernel versions also have the correct behavior. Also moved the threadappends_001_pos test into this append test directory in functional ZTS directory. This way the two append tests are together for organization purposes. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Brian Atkinson <batkinson@lanl.gov> Closes openzfs#13424
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@@ -4,6 +4,7 @@ | |
| /devname2devid | ||
| /dir_rd_update | ||
| /draid | ||
| /file_append | ||
| /file_check | ||
| /file_trunc | ||
| /file_write | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,206 @@ | ||
| /* | ||
| * CDDL HEADER START | ||
| * | ||
| * The contents of this file are subject to the terms of the | ||
| * Common Development and Distribution License (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * | ||
| * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | ||
| * or http://www.opensolaris.org/os/licensing. | ||
| * See the License for the specific language governing permissions | ||
| * and limitations under the License. | ||
| * | ||
| * When distributing Covered Code, include this CDDL HEADER in each | ||
| * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | ||
| * If applicable, add the following below this CDDL HEADER, with the | ||
| * fields enclosed by brackets "[]" replaced with your own identifying | ||
| * information: Portions Copyright [yyyy] [name of copyright owner] | ||
| * | ||
| * CDDL HEADER END | ||
| */ | ||
|
|
||
| /* | ||
| * Copyright (c) 2022 by Triad National Security, LLC | ||
| */ | ||
|
|
||
| #include "file_common.h" | ||
| #include <unistd.h> | ||
| #include <sys/sysmacros.h> | ||
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| static char *filename = NULL; | ||
| static int expected_offset = -1; | ||
| static int blocksize = 131072; /* 128KiB */ | ||
| static int numblocks = 8; | ||
| static const char *execname = "file_append"; | ||
| static int use_odirect = 0; | ||
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||
| static void | ||
| usage(void) | ||
| { | ||
| (void) fprintf(stderr, | ||
| "usage %s -f filename -e expected_offset [-b blocksize] \n" | ||
| " [-n numblocks] [-d use_odirect] [-h help]\n" | ||
| "\n" | ||
| "Opens a file using O_APPEND and writes numblocks blocksize\n" | ||
| "blocks to filename.\n" | ||
| "Checks if expected_offst == lseek(fd, 0, SEEK_CUR)).\n" | ||
| "\n" | ||
| " filename: File to open with O_APPEND and write to.\n" | ||
| " expected_offset: Expected file offset after writing\n" | ||
| " blocksize numblocks to filename\n" | ||
| " blocksize: Size of each block to writei (must be at\n" | ||
| " least >= 512). If using use_odirect (-d)\n" | ||
| " must be a mutltiple of _SC_PAGE_SIZE\n" | ||
| " numblocks: Total number of blocksized blocks to\n" | ||
| " write.\n" | ||
| " use_odirect: Open file using O_DIRECT.\n" | ||
| " help: Print usage information and exit.\n" | ||
| "\n" | ||
| " Required parameters:\n" | ||
| " filename\n" | ||
| " expected_offset\n" | ||
| "\n" | ||
| " Default values:\n" | ||
| " blocksize -> 131072 (128 KiB)\n" | ||
| " numblocks -> 8\n" | ||
| " use_odirect -> False\n", | ||
| execname); | ||
| (void) exit(1); | ||
| } | ||
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||
| static void | ||
| parse_options(int argc, char *argv[]) | ||
| { | ||
| int c; | ||
| int errflag = 0; | ||
| extern char *optarg; | ||
| extern int optind, optopt; | ||
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| while ((c = getopt(argc, argv, "b:de:f:hn:")) != -1) { | ||
| switch (c) { | ||
| case 'b': | ||
| blocksize = atoi(optarg); | ||
| break; | ||
| case 'd': | ||
| use_odirect = 1; | ||
| break; | ||
| case 'e': | ||
| expected_offset = atoi(optarg); | ||
| break; | ||
| case 'f': | ||
| filename = optarg; | ||
| break; | ||
| case 'h': | ||
| (void) usage(); | ||
| break; | ||
| case 'n': | ||
| numblocks = atoi(optarg); | ||
| break; | ||
| case ':': | ||
| (void) fprintf(stderr, | ||
| "Option -%c requires an operand\n", | ||
| optopt); | ||
| errflag++; | ||
| break; | ||
| case '?': | ||
| default: | ||
| (void) fprintf(stderr, | ||
| "Unrecognized option: -%c\n", optopt); | ||
| errflag++; | ||
| break; | ||
| } | ||
| } | ||
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| if (errflag) | ||
| (void) usage(); | ||
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| if (use_odirect && ((blocksize % sysconf(_SC_PAGE_SIZE)) != 0)) { | ||
| (void) fprintf(stderr, | ||
| "blocksize parameter invalid when using O_DIRECT.\n"); | ||
| (void) usage(); | ||
| } | ||
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| if (blocksize < 512 || expected_offset < 0 || filename == NULL || | ||
| numblocks <= 0) { | ||
| (void) fprintf(stderr, | ||
| "Required parameters(s) missing or invalid value for " | ||
| "parameter.\n"); | ||
| (void) usage(); | ||
| } | ||
| } | ||
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| int | ||
| main(int argc, char *argv[]) | ||
| { | ||
| int err; | ||
| const char *datapattern = "0xf00ba3"; | ||
| int fd = -1; | ||
| int fd_flags = O_WRONLY | O_CREAT | O_APPEND; | ||
| int buf_offset = 0; | ||
| char *buf; | ||
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| parse_options(argc, argv); | ||
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| if (use_odirect) | ||
| fd_flags |= O_DIRECT; | ||
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| fd = open(filename, fd_flags, 0666); | ||
| if (fd == -1) { | ||
| (void) fprintf(stderr, "%s: %s: ", execname, filename); | ||
| perror("open"); | ||
| (void) exit(2); | ||
| } | ||
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| err = posix_memalign((void **)&buf, sysconf(_SC_PAGE_SIZE), | ||
| blocksize); | ||
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| if (err != 0) { | ||
| (void) fprintf(stderr, | ||
| "%s: %s\n", execname, strerror(err)); | ||
| (void) exit(2); | ||
| } | ||
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| /* Putting known data pattern in buffer */ | ||
| int left = blocksize; | ||
| while (left) { | ||
| size_t amt = MIN(strlen(datapattern), left); | ||
| memcpy(&buf[buf_offset], datapattern, amt); | ||
| buf_offset += amt; | ||
| left -= amt; | ||
| } | ||
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| for (int i = 0; i < numblocks; i++) { | ||
| int wrote = write(fd, buf, blocksize); | ||
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| if (wrote != blocksize) { | ||
| if (wrote < 0) { | ||
| perror("write"); | ||
| } else { | ||
| (void) fprintf(stderr, | ||
| "%s: unexpected short write, wrote %d " | ||
| "byte, expected %d\n", execname, wrote, | ||
| blocksize); | ||
| } | ||
| (void) exit(2); | ||
| } | ||
| } | ||
|
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| /* Getting current file offset */ | ||
| off_t off = lseek(fd, 0, SEEK_CUR); | ||
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| if (off == -1) { | ||
| perror("output seek"); | ||
| (void) exit(2); | ||
| } else if (off != expected_offset) { | ||
| (void) fprintf(stderr, | ||
| "%s: expected offset %d but current offset in %s is set " | ||
| "to %ld\n", execname, expected_offset, filename, | ||
| (long int)off); | ||
| (void) exit(2); | ||
| } | ||
|
|
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| (void) close(fd); | ||
| free(buf); | ||
|
|
||
| return (0); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| #!/bin/ksh -p | ||
| # | ||
| # CDDL HEADER START | ||
| # | ||
| # The contents of this file are subject to the terms of the | ||
| # Common Development and Distribution License (the "License"). | ||
| # You may not use this file except in compliance with the License. | ||
| # | ||
| # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | ||
| # or http://www.opensolaris.org/os/licensing. | ||
| # See the License for the specific language governing permissions | ||
| # and limitations under the License. | ||
| # | ||
| # When distributing Covered Code, include this CDDL HEADER in each | ||
| # file and include the License file at usr/src/OPENSOLARIS.LICENSE. | ||
| # If applicable, add the following below this CDDL HEADER, with the | ||
| # fields enclosed by brackets "[]" replaced with your own identifying | ||
| # information: Portions Copyright [yyyy] [name of copyright owner] | ||
| # | ||
| # CDDL HEADER END | ||
| # | ||
|
|
||
| # | ||
| # Copyright (c) 2022 by Triad National Security, LCC | ||
| # | ||
|
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| . $STF_SUITE/include/libtest.shlib | ||
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| # | ||
| # DESCRIPTION: | ||
| # Tests file offset using O_APPEND. | ||
| # | ||
| # STRATEGY: | ||
| # 1. Open file using O_APPEND | ||
| # 2. Write to the file using random number of blocks (1, 2, or 3) | ||
| # 3. Verify that the file offset is correct using lseek after the write | ||
| # 4. Repeat steps 2 and 3, 5 times | ||
| # 5. Close the file. | ||
| # 6. Repeat steps 1-5 but also open file with O_DIRECT | ||
| # | ||
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| verify_runnable "global" | ||
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| log_assert "Ensure file offset is updated correctly when opened with O_APPEND" | ||
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| mntpt=$(get_prop mountpoint $TESTPOOL/$TESTFS) | ||
| filename=$mntpt/append_file.txt | ||
| bs=131072 | ||
| ITERATIONS=5 | ||
| expected=0 | ||
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| # First test using buffered writes with O_APPEND | ||
| for i in $(seq $ITERATIONS); do | ||
| num_blocks=$(random_int_between 1 3) | ||
| expected=$((expected + ( bs * num_blocks))) | ||
| log_must file_append -f $filename -e $expected -b $bs -n $num_blocks | ||
| curr_offset=$expected | ||
| done | ||
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| log_must rm -f $filename | ||
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| expected=0 | ||
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| # Repeat same test using O_DIRECT writes with O_APPEND | ||
| for i in $(seq $ITERATIONS); do | ||
| num_blocks=$(random_int_between 1 3) | ||
| expected=$((expected + ( bs * num_blocks))) | ||
| log_must file_append -f $filename -e $expected -b $bs -n $num_blocks -d | ||
| done | ||
|
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| log_must rm -f $filename | ||
|
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| log_pass "File offset updated correctly when opening a file with O_APPEND." |
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