16 #include "lib/axmap.h"
18 #ifdef CONFIG_LINUX_FALLOCATE
19 #include <linux/falloc.h>
24 static inline void clear_error(struct thread_data *td)
31 * Leaves f->fd open on success, caller must close
33 static int extend_file(struct thread_data *td, struct fio_file *f)
35 int r, new_layout = 0, unlink_file = 0, flags;
36 unsigned long long left;
41 log_err("fio: refusing extend of file due to read-only\n");
46 * check if we need to lay the file out complete again. fio
47 * does that for operations involving reads, or for writes
48 * where overwrite is set
50 if (td_read(td) || (td_write(td) && td->o.overwrite) ||
51 (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
53 if (td_write(td) && !td->o.overwrite)
56 if (unlink_file || new_layout) {
57 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
58 if ((unlink(f->file_name) < 0) && (errno != ENOENT)) {
59 td_verror(td, errno, "unlink");
64 flags = O_WRONLY | O_CREAT;
68 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
69 f->fd = open(f->file_name, flags, 0644);
71 td_verror(td, errno, "open");
75 #ifdef CONFIG_POSIX_FALLOCATE
76 if (!td->o.fill_device) {
77 switch (td->o.fallocate_mode) {
78 case FIO_FALLOCATE_NONE:
80 case FIO_FALLOCATE_POSIX:
81 dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
83 (unsigned long long) f->real_file_size);
85 r = posix_fallocate(f->fd, 0, f->real_file_size);
87 log_err("fio: posix_fallocate fails: %s\n",
91 #ifdef CONFIG_LINUX_FALLOCATE
92 case FIO_FALLOCATE_KEEP_SIZE:
94 "fallocate(FALLOC_FL_KEEP_SIZE) "
95 "file %s size %llu\n", f->file_name,
96 (unsigned long long) f->real_file_size);
98 r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
101 td_verror(td, errno, "fallocate");
104 #endif /* CONFIG_LINUX_FALLOCATE */
106 log_err("fio: unknown fallocate mode: %d\n",
107 td->o.fallocate_mode);
111 #endif /* CONFIG_POSIX_FALLOCATE */
117 * The size will be -1ULL when fill_device is used, so don't truncate
118 * or fallocate this file, just write it
120 if (!td->o.fill_device) {
121 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
122 (unsigned long long) f->real_file_size);
123 if (ftruncate(f->fd, f->real_file_size) == -1) {
124 td_verror(td, errno, "ftruncate");
129 b = malloc(td->o.max_bs[DDIR_WRITE]);
130 memset(b, 0, td->o.max_bs[DDIR_WRITE]);
132 left = f->real_file_size;
133 while (left && !td->terminate) {
134 bs = td->o.max_bs[DDIR_WRITE];
138 r = write(f->fd, b, bs);
148 if (td->o.fill_device)
150 log_info("fio: ENOSPC on laying out "
154 td_verror(td, errno, "write");
156 td_verror(td, EIO, "write");
163 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
164 unlink(f->file_name);
165 } else if (td->o.create_fsync) {
166 if (fsync(f->fd) < 0) {
167 td_verror(td, errno, "fsync");
171 if (td->o.fill_device && !td_write(td)) {
172 fio_file_clear_size_known(f);
173 if (td_io_get_file_size(td, f))
175 if (f->io_size > f->real_file_size)
176 f->io_size = f->real_file_size;
188 static int pre_read_file(struct thread_data *td, struct fio_file *f)
190 int r, did_open = 0, old_runstate;
191 unsigned long long left;
195 if (td->io_ops->flags & FIO_PIPEIO)
198 if (!fio_file_open(f)) {
199 if (td->io_ops->open_file(td, f)) {
200 log_err("fio: cannot pre-read, failed to open file\n");
206 old_runstate = td->runstate;
207 td_set_runstate(td, TD_PRE_READING);
209 bs = td->o.max_bs[DDIR_READ];
213 lseek(f->fd, f->file_offset, SEEK_SET);
216 while (left && !td->terminate) {
220 r = read(f->fd, b, bs);
226 td_verror(td, EIO, "pre_read");
231 td_set_runstate(td, old_runstate);
234 td->io_ops->close_file(td, f);
239 static unsigned long long get_rand_file_size(struct thread_data *td)
241 unsigned long long ret, sized;
244 if (td->o.use_os_rand) {
245 r = os_random_long(&td->file_size_state);
246 sized = td->o.file_size_high - td->o.file_size_low;
247 ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
249 r = __rand(&td->__file_size_state);
250 sized = td->o.file_size_high - td->o.file_size_low;
251 ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0)));
254 ret += td->o.file_size_low;
255 ret -= (ret % td->o.rw_min_bs);
259 static int file_size(struct thread_data *td, struct fio_file *f)
263 if (stat(f->file_name, &st) == -1) {
264 td_verror(td, errno, "fstat");
268 f->real_file_size = st.st_size;
272 static int bdev_size(struct thread_data *td, struct fio_file *f)
274 unsigned long long bytes = 0;
277 if (td->io_ops->open_file(td, f)) {
278 log_err("fio: failed opening blockdev %s for size check\n",
283 r = blockdev_size(f, &bytes);
285 td_verror(td, r, "blockdev_size");
290 log_err("%s: zero sized block device?\n", f->file_name);
294 f->real_file_size = bytes;
295 td->io_ops->close_file(td, f);
298 td->io_ops->close_file(td, f);
302 static int char_size(struct thread_data *td, struct fio_file *f)
304 #ifdef FIO_HAVE_CHARDEV_SIZE
305 unsigned long long bytes = 0;
308 if (td->io_ops->open_file(td, f)) {
309 log_err("fio: failed opening blockdev %s for size check\n",
314 r = chardev_size(f, &bytes);
316 td_verror(td, r, "chardev_size");
321 log_err("%s: zero sized char device?\n", f->file_name);
325 f->real_file_size = bytes;
326 td->io_ops->close_file(td, f);
329 td->io_ops->close_file(td, f);
332 f->real_file_size = -1ULL;
337 static int get_file_size(struct thread_data *td, struct fio_file *f)
341 if (fio_file_size_known(f))
344 if (f->filetype == FIO_TYPE_FILE)
345 ret = file_size(td, f);
346 else if (f->filetype == FIO_TYPE_BD)
347 ret = bdev_size(td, f);
348 else if (f->filetype == FIO_TYPE_CHAR)
349 ret = char_size(td, f);
351 f->real_file_size = -1;
356 if (f->file_offset > f->real_file_size) {
357 log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
358 f->file_offset, f->real_file_size);
362 fio_file_set_size_known(f);
366 static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
367 unsigned long long off,
368 unsigned long long len)
375 off = f->file_offset;
377 if (len == -1ULL || off == -1ULL)
380 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
384 * FIXME: add blockdev flushing too
387 ret = posix_madvise(f->mmap_ptr, f->mmap_sz, POSIX_MADV_DONTNEED);
389 (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
391 } else if (f->filetype == FIO_TYPE_FILE) {
392 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
393 } else if (f->filetype == FIO_TYPE_BD) {
394 ret = blockdev_invalidate_cache(f);
395 if (ret < 0 && errno == EACCES && geteuid()) {
397 log_err("fio: only root may flush block "
398 "devices. Cache flush bypassed!\n");
403 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
407 td_verror(td, errno, "invalidate_cache");
409 } else if (ret > 0) {
410 td_verror(td, ret, "invalidate_cache");
418 int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
420 if (!fio_file_open(f))
423 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
426 int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
430 dprint(FD_FILE, "fd close %s\n", f->file_name);
434 if (close(f->fd) < 0)
439 if (f->shadow_fd != -1) {
447 int file_lookup_open(struct fio_file *f, int flags)
449 struct fio_file *__f;
452 __f = lookup_file_hash(f->file_name);
454 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
456 * racy, need the __f->lock locked
461 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
465 f->fd = open(f->file_name, flags, 0600);
469 static int file_close_shadow_fds(struct thread_data *td)
475 for_each_file(td, f, i) {
476 if (f->shadow_fd == -1)
487 int generic_open_file(struct thread_data *td, struct fio_file *f)
493 dprint(FD_FILE, "fd open %s\n", f->file_name);
495 if (td_trim(td) && f->filetype != FIO_TYPE_BD) {
496 log_err("fio: trim only applies to block device\n");
500 if (!strcmp(f->file_name, "-")) {
502 log_err("fio: can't read/write to stdin/out\n");
508 * move output logging to stderr, if we are writing to stdout
517 flags |= OS_O_DIRECT;
520 if (td->o.create_on_open)
523 if (f->filetype != FIO_TYPE_FILE)
524 flags |= FIO_O_NOATIME;
531 if (f->filetype == FIO_TYPE_FILE)
535 f->fd = dup(STDOUT_FILENO);
537 from_hash = file_lookup_open(f, flags);
538 } else if (td_read(td)) {
539 if (f->filetype == FIO_TYPE_CHAR && !read_only)
545 f->fd = dup(STDIN_FILENO);
547 from_hash = file_lookup_open(f, flags);
550 from_hash = file_lookup_open(f, flags);
554 char buf[FIO_VERROR_SIZE];
557 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
558 flags &= ~FIO_O_NOATIME;
561 if (__e == EMFILE && file_close_shadow_fds(td))
564 snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
566 if (__e == EINVAL && (flags & OS_O_DIRECT)) {
567 log_err("fio: looks like your file system does not " \
568 "support direct=1/buffered=0\n");
571 td_verror(td, __e, buf);
574 if (!from_hash && f->fd != -1) {
575 if (add_file_hash(f)) {
579 * Stash away descriptor for later close. This is to
580 * work-around a "feature" on Linux, where a close of
581 * an fd that has been opened for write will trigger
582 * udev to call blkid to check partitions, fs id, etc.
583 * That polutes the device cache, which can slow down
584 * unbuffered accesses.
586 if (f->shadow_fd == -1)
587 f->shadow_fd = f->fd;
590 * OK to ignore, we haven't done anything
593 ret = generic_close_file(td, f);
602 int generic_get_file_size(struct thread_data *td, struct fio_file *f)
604 return get_file_size(td, f);
608 * open/close all files, so that ->real_file_size gets set
610 static int get_file_sizes(struct thread_data *td)
616 for_each_file(td, f, i) {
617 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
620 if (td_io_get_file_size(td, f)) {
621 if (td->error != ENOENT) {
622 log_err("%s\n", td->verror);
628 if (f->real_file_size == -1ULL && td->o.size)
629 f->real_file_size = td->o.size / td->o.nr_files;
636 struct flist_head list;
643 * Get free number of bytes for each file on each unique mount.
645 static unsigned long long get_fs_free_counts(struct thread_data *td)
647 struct flist_head *n, *tmp;
648 unsigned long long ret = 0;
649 struct fio_mount *fm;
654 for_each_file(td, f, i) {
658 if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
659 if (f->real_file_size != -1ULL)
660 ret += f->real_file_size;
662 } else if (f->filetype != FIO_TYPE_FILE)
665 strcpy(buf, f->file_name);
667 if (stat(buf, &sb) < 0) {
671 if (stat(buf, &sb) < 0)
676 flist_for_each(n, &list) {
677 fm = flist_entry(n, struct fio_mount, list);
678 if (fm->key == sb.st_dev)
687 fm = malloc(sizeof(*fm));
688 strcpy(fm->__base, buf);
689 fm->base = basename(fm->__base);
691 flist_add(&fm->list, &list);
694 flist_for_each_safe(n, tmp, &list) {
695 unsigned long long sz;
697 fm = flist_entry(n, struct fio_mount, list);
698 flist_del(&fm->list);
700 sz = get_fs_size(fm->base);
701 if (sz && sz != -1ULL)
710 uint64_t get_start_offset(struct thread_data *td)
712 return td->o.start_offset +
713 (td->thread_number - 1) * td->o.offset_increment;
717 * Open the files and setup files sizes, creating files if necessary.
719 int setup_files(struct thread_data *td)
721 unsigned long long total_size, extend_size;
724 int err = 0, need_extend;
726 dprint(FD_FILE, "setup files\n");
728 if (td->o.read_iolog_file)
732 * if ioengine defines a setup() method, it's responsible for
733 * opening the files and setting f->real_file_size to indicate
734 * the valid range for that file.
736 if (td->io_ops->setup)
737 err = td->io_ops->setup(td);
739 err = get_file_sizes(td);
745 * check sizes. if the files/devices do not exist and the size
746 * isn't passed to fio, abort.
749 for_each_file(td, f, i) {
750 if (f->real_file_size == -1ULL)
753 total_size += f->real_file_size;
756 if (td->o.fill_device)
757 td->fill_device_size = get_fs_free_counts(td);
760 * device/file sizes are zero and no size given, punt
762 if ((!total_size || total_size == -1ULL) && !td->o.size &&
763 !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
764 log_err("%s: you need to specify size=\n", td->o.name);
765 td_verror(td, EINVAL, "total_file_size");
770 * now file sizes are known, so we can set ->io_size. if size= is
771 * not given, ->io_size is just equal to ->real_file_size. if size
772 * is given, ->io_size is size / nr_files.
774 extend_size = total_size = 0;
776 for_each_file(td, f, i) {
777 f->file_offset = get_start_offset(td);
779 if (!td->o.file_size_low) {
781 * no file size range given, file size is equal to
782 * total size divided by number of files. if that is
783 * zero, set it to the real file size.
785 f->io_size = td->o.size / td->o.nr_files;
787 f->io_size = f->real_file_size - f->file_offset;
788 } else if (f->real_file_size < td->o.file_size_low ||
789 f->real_file_size > td->o.file_size_high) {
790 if (f->file_offset > td->o.file_size_low)
793 * file size given. if it's fixed, use that. if it's a
794 * range, generate a random size in-between.
796 if (td->o.file_size_low == td->o.file_size_high) {
797 f->io_size = td->o.file_size_low
800 f->io_size = get_rand_file_size(td)
804 f->io_size = f->real_file_size - f->file_offset;
806 if (f->io_size == -1ULL)
809 if (td->o.size_percent)
810 f->io_size = (f->io_size * td->o.size_percent) / 100;
811 total_size += f->io_size;
814 if (f->filetype == FIO_TYPE_FILE &&
815 (f->io_size + f->file_offset) > f->real_file_size &&
816 !(td->io_ops->flags & FIO_DISKLESSIO)) {
817 if (!td->o.create_on_open) {
819 extend_size += (f->io_size + f->file_offset);
821 f->real_file_size = f->io_size + f->file_offset;
822 fio_file_set_extend(f);
826 if (!td->o.size || td->o.size > total_size)
827 td->o.size = total_size;
830 * See if we need to extend some files
834 if (output_format == FIO_OUTPUT_NORMAL)
835 log_info("%s: Laying out IO file(s) (%u file(s) /"
836 " %lluMB)\n", td->o.name, need_extend,
839 for_each_file(td, f, i) {
840 unsigned long long old_len = -1ULL, extend_len = -1ULL;
842 if (!fio_file_extend(f))
845 assert(f->filetype == FIO_TYPE_FILE);
846 fio_file_clear_extend(f);
847 if (!td->o.fill_device) {
848 old_len = f->real_file_size;
849 extend_len = f->io_size + f->file_offset -
852 f->real_file_size = (f->io_size + f->file_offset);
853 err = extend_file(td, f);
857 err = __file_invalidate_cache(td, f, old_len,
870 if (!td->o.zone_size)
871 td->o.zone_size = td->o.size;
874 * iolog already set the total io size, if we read back
877 if (!td->o.read_iolog_file)
878 td->total_io_size = td->o.size * td->o.loops;
881 if (td->o.create_only)
886 log_err("%s: you need to specify valid offset=\n", td->o.name);
890 int pre_read_files(struct thread_data *td)
895 dprint(FD_FILE, "pre_read files\n");
897 for_each_file(td, f, i) {
898 pre_read_file(td, f);
904 static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
906 unsigned int range_size, seed;
907 unsigned long nranges;
910 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
911 file_size = min(f->real_file_size, f->io_size);
913 nranges = (file_size + range_size - 1) / range_size;
915 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
916 if (!td->o.rand_repeatable)
917 seed = td->rand_seeds[4];
919 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
920 zipf_init(&f->zipf, nranges, td->o.zipf_theta, seed);
922 pareto_init(&f->zipf, nranges, td->o.pareto_h, seed);
927 static int init_rand_distribution(struct thread_data *td)
933 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
936 state = td->runstate;
937 td_set_runstate(td, TD_SETTING_UP);
938 for_each_file(td, f, i)
939 __init_rand_distribution(td, f);
940 td_set_runstate(td, state);
945 int init_random_map(struct thread_data *td)
947 unsigned long long blocks;
951 if (init_rand_distribution(td))
956 for_each_file(td, f, i) {
957 uint64_t file_size = min(f->real_file_size, f->io_size);
959 blocks = file_size / (unsigned long long) td->o.rw_min_bs;
961 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
964 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
966 if (!lfsr_init(&f->lfsr, blocks, seed, seed & 0xF))
968 } else if (!td->o.norandommap) {
969 f->io_axmap = axmap_new(blocks);
972 } else if (td->o.norandommap)
975 if (!td->o.softrandommap) {
976 log_err("fio: failed allocating random map. If running"
977 " a large number of jobs, try the 'norandommap'"
978 " option or set 'softrandommap'. Or give"
979 " a larger --alloc-size to fio.\n");
983 log_info("fio: file %s failed allocating random map. Running "
984 "job without.\n", f->file_name);
990 void close_files(struct thread_data *td)
995 for_each_file(td, f, i) {
996 if (fio_file_open(f))
997 td_io_close_file(td, f);
1001 void close_and_free_files(struct thread_data *td)
1006 dprint(FD_FILE, "close files\n");
1008 for_each_file(td, f, i) {
1009 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1010 dprint(FD_FILE, "free unlink %s\n", f->file_name);
1011 unlink(f->file_name);
1014 if (fio_file_open(f))
1015 td_io_close_file(td, f);
1017 remove_file_hash(f);
1019 sfree(f->file_name);
1020 f->file_name = NULL;
1021 axmap_free(f->io_axmap);
1026 td->o.filename = NULL;
1028 free(td->file_locks);
1029 td->files_index = 0;
1031 td->file_locks = NULL;
1035 static void get_file_type(struct fio_file *f)
1039 if (!strcmp(f->file_name, "-"))
1040 f->filetype = FIO_TYPE_PIPE;
1042 f->filetype = FIO_TYPE_FILE;
1044 /* \\.\ is the device namespace in Windows, where every file is
1046 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
1047 f->filetype = FIO_TYPE_BD;
1049 if (!stat(f->file_name, &sb)) {
1050 if (S_ISBLK(sb.st_mode))
1051 f->filetype = FIO_TYPE_BD;
1052 else if (S_ISCHR(sb.st_mode))
1053 f->filetype = FIO_TYPE_CHAR;
1054 else if (S_ISFIFO(sb.st_mode))
1055 f->filetype = FIO_TYPE_PIPE;
1059 int add_file(struct thread_data *td, const char *fname)
1061 int cur_files = td->files_index;
1062 char file_name[PATH_MAX];
1066 dprint(FD_FILE, "add file %s\n", fname);
1068 f = smalloc(sizeof(*f));
1070 log_err("fio: smalloc OOM\n");
1076 fio_file_reset(td, f);
1078 if (td->files_size <= td->files_index) {
1079 unsigned int new_size = td->o.nr_files + 1;
1081 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1083 td->files = realloc(td->files, new_size * sizeof(f));
1084 if (td->files == NULL) {
1085 log_err("fio: realloc OOM\n");
1088 if (td->o.file_lock_mode != FILE_LOCK_NONE) {
1089 td->file_locks = realloc(td->file_locks, new_size);
1090 if (!td->file_locks) {
1091 log_err("fio: realloc OOM\n");
1094 td->file_locks[cur_files] = FILE_LOCK_NONE;
1096 td->files_size = new_size;
1098 td->files[cur_files] = f;
1099 f->fileno = cur_files;
1102 * init function, io engine may not be loaded yet
1104 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
1105 f->real_file_size = -1ULL;
1107 if (td->o.directory)
1108 len = sprintf(file_name, "%s/", td->o.directory);
1110 sprintf(file_name + len, "%s", fname);
1111 f->file_name = smalloc_strdup(file_name);
1112 if (!f->file_name) {
1113 log_err("fio: smalloc OOM\n");
1119 switch (td->o.file_lock_mode) {
1120 case FILE_LOCK_NONE:
1122 case FILE_LOCK_READWRITE:
1123 f->rwlock = fio_rwlock_init();
1125 case FILE_LOCK_EXCLUSIVE:
1126 f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
1129 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1134 if (f->filetype == FIO_TYPE_FILE)
1135 td->nr_normal_files++;
1137 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1143 int add_file_exclusive(struct thread_data *td, const char *fname)
1148 for_each_file(td, f, i) {
1149 if (!strcmp(f->file_name, fname))
1153 return add_file(td, fname);
1156 void get_file(struct fio_file *f)
1158 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
1159 assert(fio_file_open(f));
1163 int put_file(struct thread_data *td, struct fio_file *f)
1165 int f_ret = 0, ret = 0;
1167 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
1169 if (!fio_file_open(f)) {
1170 assert(f->fd == -1);
1174 assert(f->references);
1175 if (--f->references)
1178 if (should_fsync(td) && td->o.fsync_on_close)
1179 f_ret = fsync(f->fd);
1181 if (td->io_ops->close_file)
1182 ret = td->io_ops->close_file(td, f);
1187 td->nr_open_files--;
1188 fio_file_clear_open(f);
1189 assert(f->fd == -1);
1193 void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
1195 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1198 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1199 if (ddir == DDIR_READ)
1200 fio_rwlock_read(f->rwlock);
1202 fio_rwlock_write(f->rwlock);
1203 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1204 fio_mutex_down(f->lock);
1206 td->file_locks[f->fileno] = td->o.file_lock_mode;
1209 void unlock_file(struct thread_data *td, struct fio_file *f)
1211 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1214 if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1215 fio_rwlock_unlock(f->rwlock);
1216 else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1217 fio_mutex_up(f->lock);
1219 td->file_locks[f->fileno] = FILE_LOCK_NONE;
1222 void unlock_file_all(struct thread_data *td, struct fio_file *f)
1224 if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
1228 static int recurse_dir(struct thread_data *td, const char *dirname)
1234 D = opendir(dirname);
1236 char buf[FIO_VERROR_SIZE];
1238 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
1239 td_verror(td, errno, buf);
1243 while ((dir = readdir(D)) != NULL) {
1244 char full_path[PATH_MAX];
1247 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1250 sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
1252 if (lstat(full_path, &sb) == -1) {
1253 if (errno != ENOENT) {
1254 td_verror(td, errno, "stat");
1259 if (S_ISREG(sb.st_mode)) {
1260 add_file(td, full_path);
1264 if (!S_ISDIR(sb.st_mode))
1267 ret = recurse_dir(td, full_path);
1276 int add_dir_files(struct thread_data *td, const char *path)
1278 int ret = recurse_dir(td, path);
1281 log_info("fio: opendir added %d files\n", td->o.nr_files);
1286 void dup_files(struct thread_data *td, struct thread_data *org)
1291 dprint(FD_FILE, "dup files: %d\n", org->files_index);
1296 td->files = malloc(org->files_index * sizeof(f));
1298 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1299 td->file_locks = malloc(org->files_index);
1301 for_each_file(org, f, i) {
1302 struct fio_file *__f;
1304 __f = smalloc(sizeof(*__f));
1306 log_err("fio: smalloc OOM\n");
1310 fio_file_reset(td, __f);
1313 __f->file_name = smalloc_strdup(f->file_name);
1314 if (!__f->file_name) {
1315 log_err("fio: smalloc OOM\n");
1319 __f->filetype = f->filetype;
1327 * Returns the index that matches the filename, or -1 if not there
1329 int get_fileno(struct thread_data *td, const char *fname)
1334 for_each_file(td, f, i)
1335 if (!strcmp(f->file_name, fname))
1342 * For log usage, where we add/open/close files automatically
1344 void free_release_files(struct thread_data *td)
1347 td->files_index = 0;
1348 td->nr_normal_files = 0;
1351 void fio_file_reset(struct thread_data *td, struct fio_file *f)
1353 f->last_pos = f->file_offset;
1354 f->last_start = -1ULL;
1356 axmap_reset(f->io_axmap);
1357 if (td->o.random_generator == FIO_RAND_GEN_LFSR)
1358 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);