Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 1 | #include <unistd.h> |
| 2 | #include <fcntl.h> |
| 3 | #include <string.h> |
| 4 | #include <assert.h> |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 5 | #include <dirent.h> |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 6 | #include <sys/stat.h> |
| 7 | #include <sys/mman.h> |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 8 | #include <sys/types.h> |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 9 | |
| 10 | #include "fio.h" |
| 11 | #include "os.h" |
| 12 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 13 | static int extend_file(struct thread_data *td, struct fio_file *f) |
Jens Axboe | 25205e9 | 2006-10-19 20:50:14 +0200 | [diff] [blame] | 14 | { |
Jens Axboe | ea44365 | 2007-03-29 14:52:13 +0200 | [diff] [blame] | 15 | int r, new_layout = 0, unlink_file = 0, flags; |
Jens Axboe | 25205e9 | 2006-10-19 20:50:14 +0200 | [diff] [blame] | 16 | unsigned long long left; |
| 17 | unsigned int bs; |
| 18 | char *b; |
Jens Axboe | b2a1519 | 2006-10-18 14:10:42 +0200 | [diff] [blame] | 19 | |
Jens Axboe | 507a702 | 2007-03-27 15:52:46 +0200 | [diff] [blame] | 20 | /* |
| 21 | * check if we need to lay the file out complete again. fio |
| 22 | * does that for operations involving reads, or for writes |
| 23 | * where overwrite is set |
| 24 | */ |
| 25 | if (td_read(td) || (td_write(td) && td->o.overwrite)) |
| 26 | new_layout = 1; |
Jens Axboe | ea44365 | 2007-03-29 14:52:13 +0200 | [diff] [blame] | 27 | if (td_write(td) && !td->o.overwrite) |
| 28 | unlink_file = 1; |
Jens Axboe | 507a702 | 2007-03-27 15:52:46 +0200 | [diff] [blame] | 29 | |
Jens Axboe | ea44365 | 2007-03-29 14:52:13 +0200 | [diff] [blame] | 30 | if ((unlink_file || new_layout) && (f->flags & FIO_FILE_EXISTS)) { |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 31 | if (unlink(f->file_name) < 0) { |
| 32 | td_verror(td, errno, "unlink"); |
| 33 | return 1; |
| 34 | } |
| 35 | } |
| 36 | |
Jens Axboe | 507a702 | 2007-03-27 15:52:46 +0200 | [diff] [blame] | 37 | flags = O_WRONLY | O_CREAT; |
| 38 | if (new_layout) |
| 39 | flags |= O_TRUNC; |
| 40 | |
| 41 | f->fd = open(f->file_name, flags, 0644); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 42 | if (f->fd < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 43 | td_verror(td, errno, "open"); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 44 | return 1; |
| 45 | } |
| 46 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 47 | if (ftruncate(f->fd, f->real_file_size) == -1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 48 | td_verror(td, errno, "ftruncate"); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 49 | goto err; |
| 50 | } |
| 51 | |
Jens Axboe | e8be2ad | 2007-03-29 10:31:51 +0200 | [diff] [blame] | 52 | if (!new_layout) |
| 53 | goto done; |
| 54 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 55 | if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 56 | td_verror(td, errno, "posix_fallocate"); |
Jens Axboe | 40f8298 | 2006-10-25 11:21:05 +0200 | [diff] [blame] | 57 | goto err; |
| 58 | } |
| 59 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 60 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
| 61 | memset(b, 0, td->o.max_bs[DDIR_WRITE]); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 62 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 63 | left = f->real_file_size; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 64 | while (left && !td->terminate) { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 65 | bs = td->o.max_bs[DDIR_WRITE]; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 66 | if (bs > left) |
| 67 | bs = left; |
| 68 | |
| 69 | r = write(f->fd, b, bs); |
| 70 | |
| 71 | if (r == (int) bs) { |
| 72 | left -= bs; |
| 73 | continue; |
| 74 | } else { |
| 75 | if (r < 0) |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 76 | td_verror(td, errno, "write"); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 77 | else |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 78 | td_verror(td, EIO, "write"); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 79 | |
| 80 | break; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | if (td->terminate) |
| 85 | unlink(f->file_name); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 86 | else if (td->o.create_fsync) |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 87 | fsync(f->fd); |
| 88 | |
| 89 | free(b); |
Jens Axboe | 507a702 | 2007-03-27 15:52:46 +0200 | [diff] [blame] | 90 | done: |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 91 | close(f->fd); |
| 92 | f->fd = -1; |
| 93 | return 0; |
| 94 | err: |
| 95 | close(f->fd); |
| 96 | f->fd = -1; |
| 97 | return 1; |
| 98 | } |
| 99 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 100 | static unsigned long long get_rand_file_size(struct thread_data *td) |
Jens Axboe | 9c60ce6 | 2007-03-15 09:14:47 +0100 | [diff] [blame] | 101 | { |
Jens Axboe | 9c60ce6 | 2007-03-15 09:14:47 +0100 | [diff] [blame] | 102 | unsigned long long ret; |
| 103 | long r; |
| 104 | |
Jens Axboe | 9c60ce6 | 2007-03-15 09:14:47 +0100 | [diff] [blame] | 105 | r = os_random_long(&td->file_size_state); |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 106 | ret = td->o.file_size_low + (unsigned long long) ((double) td->o.file_size_high * (r / (RAND_MAX + 1.0))); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 107 | ret -= (ret % td->o.rw_min_bs); |
Jens Axboe | 9c60ce6 | 2007-03-15 09:14:47 +0100 | [diff] [blame] | 108 | return ret; |
| 109 | } |
| 110 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 111 | static int file_size(struct thread_data *td, struct fio_file *f) |
| 112 | { |
| 113 | struct stat st; |
| 114 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 115 | if (fstat(f->fd, &st) == -1) { |
| 116 | td_verror(td, errno, "fstat"); |
| 117 | return 1; |
| 118 | } |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 119 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 120 | f->real_file_size = st.st_size; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | static int bdev_size(struct thread_data *td, struct fio_file *f) |
| 125 | { |
| 126 | unsigned long long bytes; |
| 127 | int r; |
| 128 | |
| 129 | r = blockdev_size(f->fd, &bytes); |
| 130 | if (r) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 131 | td_verror(td, r, "blockdev_size"); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 132 | return 1; |
| 133 | } |
| 134 | |
| 135 | f->real_file_size = bytes; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 136 | return 0; |
| 137 | } |
| 138 | |
| 139 | static int get_file_size(struct thread_data *td, struct fio_file *f) |
| 140 | { |
| 141 | int ret = 0; |
| 142 | |
Jens Axboe | 409b341 | 2007-03-28 09:57:01 +0200 | [diff] [blame] | 143 | if (f->flags & FIO_SIZE_KNOWN) |
| 144 | return 0; |
| 145 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 146 | if (f->filetype == FIO_TYPE_FILE) |
| 147 | ret = file_size(td, f); |
| 148 | else if (f->filetype == FIO_TYPE_BD) |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 149 | ret = bdev_size(td, f); |
| 150 | else |
| 151 | f->real_file_size = -1; |
| 152 | |
| 153 | if (ret) |
| 154 | return ret; |
| 155 | |
| 156 | if (f->file_offset > f->real_file_size) { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 157 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, f->file_offset, f->real_file_size); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 158 | return 1; |
| 159 | } |
| 160 | |
Jens Axboe | 409b341 | 2007-03-28 09:57:01 +0200 | [diff] [blame] | 161 | f->flags |= FIO_SIZE_KNOWN; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 162 | return 0; |
| 163 | } |
| 164 | |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 165 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) |
| 166 | { |
| 167 | int ret = 0; |
| 168 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 169 | if (td->o.odirect) |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 170 | return 0; |
| 171 | |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 172 | /* |
| 173 | * FIXME: add blockdev flushing too |
| 174 | */ |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 175 | if (f->mmap) |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 176 | ret = madvise(f->mmap, f->io_size, MADV_DONTNEED); |
Jens Axboe | 467d1b6 | 2007-03-15 14:11:10 +0100 | [diff] [blame] | 177 | else if (f->filetype == FIO_TYPE_FILE) |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 178 | ret = fadvise(f->fd, f->file_offset, f->io_size, POSIX_FADV_DONTNEED); |
Jens Axboe | 7e0e25c | 2007-03-27 12:49:56 +0200 | [diff] [blame] | 179 | else if (f->filetype == FIO_TYPE_BD) { |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 180 | ret = blockdev_invalidate_cache(f->fd); |
Jens Axboe | 7e0e25c | 2007-03-27 12:49:56 +0200 | [diff] [blame] | 181 | if (ret < 0 && errno == EACCES && geteuid()) { |
| 182 | log_err("fio: only root may flush block devices. Cache flush bypassed!\n"); |
| 183 | ret = 0; |
| 184 | } |
| 185 | } else if (f->filetype == FIO_TYPE_CHAR) |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 186 | ret = 0; |
| 187 | |
| 188 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 189 | td_verror(td, errno, "invalidate_cache"); |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 190 | return 1; |
| 191 | } |
| 192 | |
Jens Axboe | ad2da60 | 2007-02-26 12:33:27 +0100 | [diff] [blame] | 193 | return ret; |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 194 | } |
| 195 | |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 196 | void generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 197 | { |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 198 | close(f->fd); |
| 199 | f->fd = -1; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 200 | } |
| 201 | |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 202 | int generic_open_file(struct thread_data *td, struct fio_file *f) |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 203 | { |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 204 | int flags = 0; |
| 205 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 206 | if (td->o.odirect) |
Jens Axboe | 2fd233b | 2007-03-02 08:44:25 +0100 | [diff] [blame] | 207 | flags |= OS_O_DIRECT; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 208 | if (td->o.sync_io) |
Jens Axboe | 2fd233b | 2007-03-02 08:44:25 +0100 | [diff] [blame] | 209 | flags |= O_SYNC; |
Jens Axboe | 7abf833 | 2006-11-23 15:01:19 +0100 | [diff] [blame] | 210 | |
Jens Axboe | 2fd233b | 2007-03-02 08:44:25 +0100 | [diff] [blame] | 211 | if (td_write(td) || td_rw(td)) { |
| 212 | flags |= O_RDWR; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 213 | |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 214 | if (f->filetype == FIO_TYPE_FILE) |
Jens Axboe | 2fd233b | 2007-03-02 08:44:25 +0100 | [diff] [blame] | 215 | flags |= O_CREAT; |
Jens Axboe | 2fd233b | 2007-03-02 08:44:25 +0100 | [diff] [blame] | 216 | |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 217 | f->fd = open(f->file_name, flags, 0600); |
Jens Axboe | 2fd233b | 2007-03-02 08:44:25 +0100 | [diff] [blame] | 218 | } else { |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 219 | if (f->filetype == FIO_TYPE_CHAR) |
Jens Axboe | 2fd233b | 2007-03-02 08:44:25 +0100 | [diff] [blame] | 220 | flags |= O_RDWR; |
| 221 | else |
| 222 | flags |= O_RDONLY; |
| 223 | |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 224 | f->fd = open(f->file_name, flags); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 225 | } |
| 226 | |
| 227 | if (f->fd == -1) { |
Jens Axboe | e4e3325 | 2007-03-21 13:07:54 +0100 | [diff] [blame] | 228 | char buf[FIO_VERROR_SIZE]; |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 229 | int __e = errno; |
| 230 | |
Jens Axboe | e4e3325 | 2007-03-21 13:07:54 +0100 | [diff] [blame] | 231 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
| 232 | |
| 233 | td_verror(td, __e, buf); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 234 | } |
| 235 | |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 236 | if (get_file_size(td, f)) |
| 237 | goto err; |
| 238 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 239 | return 0; |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 240 | err: |
| 241 | close(f->fd); |
| 242 | return 1; |
| 243 | } |
| 244 | |
Jens Axboe | 21972cd | 2006-11-23 12:39:16 +0100 | [diff] [blame] | 245 | int open_files(struct thread_data *td) |
| 246 | { |
| 247 | struct fio_file *f; |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 248 | unsigned int i; |
| 249 | int err = 0; |
Jens Axboe | 21972cd | 2006-11-23 12:39:16 +0100 | [diff] [blame] | 250 | |
| 251 | for_each_file(td, f, i) { |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 252 | err = td_io_open_file(td, f); |
Jens Axboe | 9bf27b4 | 2007-03-27 19:49:31 +0200 | [diff] [blame] | 253 | if (err) { |
| 254 | if (td->error == EMFILE) { |
| 255 | log_err("fio: limited open files to: %d\n", td->nr_open_files); |
| 256 | td->o.open_files = td->nr_open_files; |
| 257 | err = 0; |
| 258 | clear_error(td); |
| 259 | } |
Jens Axboe | 21972cd | 2006-11-23 12:39:16 +0100 | [diff] [blame] | 260 | break; |
Jens Axboe | 9bf27b4 | 2007-03-27 19:49:31 +0200 | [diff] [blame] | 261 | } |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 262 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 263 | if (td->o.open_files == td->nr_open_files) |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 264 | break; |
Jens Axboe | 21972cd | 2006-11-23 12:39:16 +0100 | [diff] [blame] | 265 | } |
| 266 | |
Jens Axboe | 7abf833 | 2006-11-23 15:01:19 +0100 | [diff] [blame] | 267 | if (!err) |
| 268 | return 0; |
| 269 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 270 | for_each_file(td, f, i) |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 271 | td_io_close_file(td, f); |
Jens Axboe | 7abf833 | 2006-11-23 15:01:19 +0100 | [diff] [blame] | 272 | |
Jens Axboe | 21972cd | 2006-11-23 12:39:16 +0100 | [diff] [blame] | 273 | return err; |
| 274 | } |
| 275 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 276 | /* |
| 277 | * open/close all files, so that ->real_file_size gets set |
| 278 | */ |
Jens Axboe | bab3fd5 | 2007-04-02 10:34:18 +0200 | [diff] [blame^] | 279 | static int get_file_sizes(struct thread_data *td) |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 280 | { |
| 281 | struct fio_file *f; |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 282 | unsigned int i; |
Jens Axboe | bab3fd5 | 2007-04-02 10:34:18 +0200 | [diff] [blame^] | 283 | int err = 0; |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 284 | |
| 285 | for_each_file(td, f, i) { |
Jens Axboe | bab3fd5 | 2007-04-02 10:34:18 +0200 | [diff] [blame^] | 286 | if (td->io_ops->open_file(td, f)) { |
| 287 | log_err("%s\n", td->verror); |
| 288 | err = 1; |
Jens Axboe | 541d66d | 2007-03-27 19:50:11 +0200 | [diff] [blame] | 289 | clear_error(td); |
Jens Axboe | bab3fd5 | 2007-04-02 10:34:18 +0200 | [diff] [blame^] | 290 | } else |
Jens Axboe | 000b080 | 2007-03-27 15:56:10 +0200 | [diff] [blame] | 291 | td->io_ops->close_file(td, f); |
Jens Axboe | 409b341 | 2007-03-28 09:57:01 +0200 | [diff] [blame] | 292 | |
| 293 | if (f->real_file_size == -1ULL && td->o.size) |
| 294 | f->real_file_size = td->o.size / td->o.nr_files; |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 295 | } |
Jens Axboe | bab3fd5 | 2007-04-02 10:34:18 +0200 | [diff] [blame^] | 296 | |
| 297 | return err; |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | /* |
| 301 | * Open the files and setup files sizes, creating files if necessary. |
| 302 | */ |
| 303 | int setup_files(struct thread_data *td) |
| 304 | { |
| 305 | unsigned long long total_size, extend_size; |
| 306 | struct fio_file *f; |
| 307 | unsigned int i; |
Jens Axboe | 000b080 | 2007-03-27 15:56:10 +0200 | [diff] [blame] | 308 | int err = 0, need_extend; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 309 | |
| 310 | /* |
| 311 | * if ioengine defines a setup() method, it's responsible for |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 312 | * opening the files and setting f->real_file_size to indicate |
| 313 | * the valid range for that file. |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 314 | */ |
| 315 | if (td->io_ops->setup) |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 316 | err = td->io_ops->setup(td); |
| 317 | else |
Jens Axboe | bab3fd5 | 2007-04-02 10:34:18 +0200 | [diff] [blame^] | 318 | err = get_file_sizes(td); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 319 | |
Jens Axboe | f102706 | 2006-10-20 10:14:01 +0200 | [diff] [blame] | 320 | if (err) |
| 321 | return err; |
| 322 | |
Jens Axboe | 0a7eb12 | 2006-10-20 10:36:42 +0200 | [diff] [blame] | 323 | /* |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 324 | * check sizes. if the files/devices do not exist and the size |
| 325 | * isn't passed to fio, abort. |
Jens Axboe | 0a7eb12 | 2006-10-20 10:36:42 +0200 | [diff] [blame] | 326 | */ |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 327 | total_size = 0; |
| 328 | for_each_file(td, f, i) { |
| 329 | if (f->real_file_size == -1ULL) |
| 330 | total_size = -1ULL; |
| 331 | else |
| 332 | total_size += f->real_file_size; |
| 333 | } |
Jens Axboe | 0a7eb12 | 2006-10-20 10:36:42 +0200 | [diff] [blame] | 334 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 335 | /* |
| 336 | * device/file sizes are zero and no size given, punt |
| 337 | */ |
Jens Axboe | 409b341 | 2007-03-28 09:57:01 +0200 | [diff] [blame] | 338 | if ((!total_size || total_size == -1ULL) && !td->o.size) { |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 339 | log_err("%s: you need to specify size=\n", td->o.name); |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 340 | td_verror(td, EINVAL, "total_file_size"); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 341 | return 1; |
| 342 | } |
| 343 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 344 | /* |
| 345 | * now file sizes are known, so we can set ->io_size. if size= is |
| 346 | * not given, ->io_size is just equal to ->real_file_size. if size |
| 347 | * is given, ->io_size is size / nr_files. |
| 348 | */ |
| 349 | extend_size = total_size = 0; |
| 350 | need_extend = 0; |
| 351 | for_each_file(td, f, i) { |
| 352 | if (!td->o.file_size_low) { |
| 353 | /* |
| 354 | * no file size range given, file size is equal to |
| 355 | * total size divided by number of files. if that is |
| 356 | * zero, set it to the real file size. |
| 357 | */ |
| 358 | f->io_size = td->o.size / td->o.nr_files; |
| 359 | if (!f->io_size) |
| 360 | f->io_size = f->real_file_size; |
| 361 | } else if (f->real_file_size < td->o.file_size_low || |
| 362 | f->real_file_size > td->o.file_size_high) { |
| 363 | /* |
| 364 | * file size given. if it's fixed, use that. if it's a |
| 365 | * range, generate a random size in-between. |
| 366 | */ |
| 367 | if (td->o.file_size_low == td->o.file_size_high) |
| 368 | f->io_size = td->o.file_size_low; |
| 369 | else |
| 370 | f->io_size = get_rand_file_size(td); |
| 371 | } else |
| 372 | f->io_size = f->real_file_size; |
| 373 | |
| 374 | if (f->io_size == -1ULL) |
| 375 | total_size = -1ULL; |
| 376 | else |
| 377 | total_size += f->io_size; |
| 378 | |
| 379 | if (f->filetype == FIO_TYPE_FILE && |
| 380 | f->io_size > f->real_file_size && |
| 381 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
| 382 | need_extend++; |
| 383 | extend_size += f->io_size; |
| 384 | f->flags |= FIO_FILE_EXTEND; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | if (!td->o.size) |
| 389 | td->o.size = total_size; |
| 390 | |
| 391 | /* |
| 392 | * See if we need to extend some files |
| 393 | */ |
| 394 | if (need_extend) { |
| 395 | temp_stall_ts = 1; |
| 396 | log_info("%s: Laying out IO file(s) (%u files / %LuMiB)\n", |
| 397 | td->o.name, need_extend, extend_size >> 20); |
| 398 | |
| 399 | for_each_file(td, f, i) { |
| 400 | if (!(f->flags & FIO_FILE_EXTEND)) |
| 401 | continue; |
| 402 | |
Jens Axboe | 409b341 | 2007-03-28 09:57:01 +0200 | [diff] [blame] | 403 | assert(f->filetype == FIO_TYPE_FILE); |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 404 | f->flags &= ~FIO_FILE_EXTEND; |
| 405 | f->real_file_size = f->io_size; |
| 406 | err = extend_file(td, f); |
| 407 | if (err) |
| 408 | break; |
| 409 | } |
| 410 | temp_stall_ts = 0; |
| 411 | } |
| 412 | |
| 413 | if (err) |
| 414 | return err; |
| 415 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 416 | if (!td->o.zone_size) |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 417 | td->o.zone_size = td->o.size; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 418 | |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 419 | td->total_io_size = td->o.size * td->o.loops; |
| 420 | return 0; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 421 | } |
| 422 | |
Jens Axboe | 6872707 | 2007-03-15 20:49:25 +0100 | [diff] [blame] | 423 | int init_random_map(struct thread_data *td) |
| 424 | { |
| 425 | int num_maps, blocks; |
| 426 | struct fio_file *f; |
| 427 | unsigned int i; |
| 428 | |
| 429 | if (td->o.norandommap) |
| 430 | return 0; |
| 431 | |
| 432 | for_each_file(td, f, i) { |
| 433 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / td->o.rw_min_bs; |
| 434 | num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP; |
| 435 | f->file_map = malloc(num_maps * sizeof(long)); |
| 436 | if (!f->file_map) { |
| 437 | log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n"); |
| 438 | return 1; |
| 439 | } |
| 440 | f->num_maps = num_maps; |
| 441 | memset(f->file_map, 0, num_maps * sizeof(long)); |
| 442 | } |
| 443 | |
| 444 | return 0; |
| 445 | } |
| 446 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 447 | void close_files(struct thread_data *td) |
| 448 | { |
Jens Axboe | 0ab8db8 | 2006-10-18 17:16:23 +0200 | [diff] [blame] | 449 | struct fio_file *f; |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 450 | unsigned int i; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 451 | |
Jens Axboe | 0ab8db8 | 2006-10-18 17:16:23 +0200 | [diff] [blame] | 452 | for_each_file(td, f, i) { |
Jens Axboe | fa1da86 | 2007-03-23 15:20:54 +0100 | [diff] [blame] | 453 | if ((f->flags & FIO_FILE_UNLINK) && |
| 454 | f->filetype == FIO_TYPE_FILE) |
Jens Axboe | 132ad46 | 2006-11-23 12:23:12 +0100 | [diff] [blame] | 455 | unlink(f->file_name); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 456 | |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 457 | td_io_close_file(td, f); |
Jens Axboe | b3dc7f0 | 2007-03-09 12:52:15 +0100 | [diff] [blame] | 458 | |
Jens Axboe | fa1da86 | 2007-03-23 15:20:54 +0100 | [diff] [blame] | 459 | free(f->file_name); |
| 460 | f->file_name = NULL; |
| 461 | |
Jens Axboe | c343981 | 2007-03-20 13:54:53 +0100 | [diff] [blame] | 462 | if (f->file_map) { |
Jens Axboe | b3dc7f0 | 2007-03-09 12:52:15 +0100 | [diff] [blame] | 463 | free(f->file_map); |
Jens Axboe | c343981 | 2007-03-20 13:54:53 +0100 | [diff] [blame] | 464 | f->file_map = NULL; |
| 465 | } |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 466 | } |
Jens Axboe | b4a6a59 | 2006-10-20 13:54:47 +0200 | [diff] [blame] | 467 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 468 | td->o.filename = NULL; |
Jens Axboe | cade3ef | 2007-03-23 15:29:45 +0100 | [diff] [blame] | 469 | free(td->files); |
Jens Axboe | b4a6a59 | 2006-10-20 13:54:47 +0200 | [diff] [blame] | 470 | td->files = NULL; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 471 | td->o.nr_files = 0; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 472 | } |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 473 | |
Jens Axboe | e3bab46 | 2007-03-13 11:22:09 +0100 | [diff] [blame] | 474 | static void get_file_type(struct fio_file *f) |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 475 | { |
| 476 | struct stat sb; |
| 477 | |
| 478 | f->filetype = FIO_TYPE_FILE; |
| 479 | |
Jens Axboe | e3bab46 | 2007-03-13 11:22:09 +0100 | [diff] [blame] | 480 | if (!lstat(f->file_name, &sb)) { |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 481 | if (S_ISBLK(sb.st_mode)) |
| 482 | f->filetype = FIO_TYPE_BD; |
| 483 | else if (S_ISCHR(sb.st_mode)) |
| 484 | f->filetype = FIO_TYPE_CHAR; |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | void add_file(struct thread_data *td, const char *fname) |
| 489 | { |
Jens Axboe | 7b4e4fe | 2007-03-13 12:51:40 +0100 | [diff] [blame] | 490 | int cur_files = td->files_index; |
Jens Axboe | bd0ee74 | 2007-03-23 14:26:23 +0100 | [diff] [blame] | 491 | char file_name[PATH_MAX]; |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 492 | struct fio_file *f; |
Jens Axboe | bd0ee74 | 2007-03-23 14:26:23 +0100 | [diff] [blame] | 493 | int len = 0; |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 494 | |
| 495 | td->files = realloc(td->files, (cur_files + 1) * sizeof(*f)); |
| 496 | |
| 497 | f = &td->files[cur_files]; |
| 498 | memset(f, 0, sizeof(*f)); |
| 499 | f->fd = -1; |
Jens Axboe | bd0ee74 | 2007-03-23 14:26:23 +0100 | [diff] [blame] | 500 | |
| 501 | if (td->o.directory) |
| 502 | len = sprintf(file_name, "%s/", td->o.directory); |
| 503 | |
| 504 | sprintf(file_name + len, "%s", fname); |
| 505 | f->file_name = strdup(file_name); |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 506 | |
Jens Axboe | e3bab46 | 2007-03-13 11:22:09 +0100 | [diff] [blame] | 507 | get_file_type(f); |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 508 | |
Jens Axboe | 7b4e4fe | 2007-03-13 12:51:40 +0100 | [diff] [blame] | 509 | td->files_index++; |
Jens Axboe | 1549441 | 2007-03-13 11:52:47 +0100 | [diff] [blame] | 510 | if (f->filetype == FIO_TYPE_FILE) |
| 511 | td->nr_normal_files++; |
Jens Axboe | af52b34 | 2007-03-13 10:07:47 +0100 | [diff] [blame] | 512 | } |
Jens Axboe | 0ad920e | 2007-03-13 11:06:45 +0100 | [diff] [blame] | 513 | |
| 514 | void get_file(struct fio_file *f) |
| 515 | { |
| 516 | f->references++; |
| 517 | } |
| 518 | |
| 519 | void put_file(struct thread_data *td, struct fio_file *f) |
| 520 | { |
| 521 | if (!(f->flags & FIO_FILE_OPEN)) |
| 522 | return; |
| 523 | |
| 524 | assert(f->references); |
| 525 | if (--f->references) |
| 526 | return; |
| 527 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 528 | if (should_fsync(td) && td->o.fsync_on_close) |
Jens Axboe | ebb1415 | 2007-03-13 14:42:15 +0100 | [diff] [blame] | 529 | fsync(f->fd); |
| 530 | |
Jens Axboe | 0ad920e | 2007-03-13 11:06:45 +0100 | [diff] [blame] | 531 | if (td->io_ops->close_file) |
| 532 | td->io_ops->close_file(td, f); |
Jens Axboe | 1020a13 | 2007-03-29 11:15:06 +0200 | [diff] [blame] | 533 | |
Jens Axboe | 0ad920e | 2007-03-13 11:06:45 +0100 | [diff] [blame] | 534 | td->nr_open_files--; |
| 535 | f->flags &= ~FIO_FILE_OPEN; |
| 536 | } |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 537 | |
| 538 | static int recurse_dir(struct thread_data *td, const char *dirname) |
| 539 | { |
| 540 | struct dirent *dir; |
| 541 | int ret = 0; |
| 542 | DIR *D; |
| 543 | |
| 544 | D = opendir(dirname); |
| 545 | if (!D) { |
Jens Axboe | 0ddb270 | 2007-03-27 19:43:53 +0200 | [diff] [blame] | 546 | char buf[FIO_VERROR_SIZE]; |
| 547 | |
| 548 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); |
| 549 | td_verror(td, errno, buf); |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 550 | return 1; |
| 551 | } |
| 552 | |
| 553 | while ((dir = readdir(D)) != NULL) { |
| 554 | char full_path[PATH_MAX]; |
| 555 | struct stat sb; |
| 556 | |
Jens Axboe | e85b2b8 | 2007-03-14 09:39:06 +0100 | [diff] [blame] | 557 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
| 558 | continue; |
Jens Axboe | 96d32d5 | 2007-03-14 09:16:09 +0100 | [diff] [blame] | 559 | |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 560 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
| 561 | |
| 562 | if (lstat(full_path, &sb) == -1) { |
| 563 | if (errno != ENOENT) { |
| 564 | td_verror(td, errno, "stat"); |
| 565 | return 1; |
| 566 | } |
| 567 | } |
| 568 | |
| 569 | if (S_ISREG(sb.st_mode)) { |
| 570 | add_file(td, full_path); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 571 | td->o.nr_files++; |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 572 | continue; |
| 573 | } |
Jens Axboe | 0ddb270 | 2007-03-27 19:43:53 +0200 | [diff] [blame] | 574 | if (!S_ISDIR(sb.st_mode)) |
| 575 | continue; |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 576 | |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 577 | if ((ret = recurse_dir(td, full_path)) != 0) |
| 578 | break; |
| 579 | } |
| 580 | |
| 581 | closedir(D); |
| 582 | return ret; |
| 583 | } |
| 584 | |
| 585 | int add_dir_files(struct thread_data *td, const char *path) |
| 586 | { |
Jens Axboe | 0ddb270 | 2007-03-27 19:43:53 +0200 | [diff] [blame] | 587 | int ret = recurse_dir(td, path); |
| 588 | |
| 589 | if (!ret) |
| 590 | log_info("fio: opendir added %d files\n", td->o.nr_files); |
| 591 | |
| 592 | return ret; |
Jens Axboe | bbf6b54 | 2007-03-13 15:28:55 +0100 | [diff] [blame] | 593 | } |
Jens Axboe | cade3ef | 2007-03-23 15:29:45 +0100 | [diff] [blame] | 594 | |
| 595 | void dup_files(struct thread_data *td, struct thread_data *org) |
| 596 | { |
| 597 | struct fio_file *f; |
| 598 | unsigned int i; |
| 599 | size_t bytes; |
| 600 | |
| 601 | if (!org->files) |
| 602 | return; |
| 603 | |
| 604 | bytes = org->files_index * sizeof(*f); |
| 605 | td->files = malloc(bytes); |
| 606 | memcpy(td->files, org->files, bytes); |
| 607 | |
| 608 | for_each_file(td, f, i) { |
| 609 | if (f->file_name) |
| 610 | f->file_name = strdup(f->file_name); |
| 611 | } |
| 612 | } |