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]);
131 left = f->real_file_size;
132 while (left && !td->terminate) {
133 bs = td->o.max_bs[DDIR_WRITE];
137 fill_io_buffer(td, b, bs, bs);
139 r = write(f->fd, b, bs);
149 if (td->o.fill_device)
151 log_info("fio: ENOSPC on laying out "
155 td_verror(td, errno, "write");
157 td_verror(td, EIO, "write");
164 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
165 unlink(f->file_name);
166 } else if (td->o.create_fsync) {
167 if (fsync(f->fd) < 0) {
168 td_verror(td, errno, "fsync");
172 if (td->o.fill_device && !td_write(td)) {
173 fio_file_clear_size_known(f);
174 if (td_io_get_file_size(td, f))
176 if (f->io_size > f->real_file_size)
177 f->io_size = f->real_file_size;
189 static int pre_read_file(struct thread_data *td, struct fio_file *f)
191 int r, did_open = 0, old_runstate;
192 unsigned long long left;
196 if (td->io_ops->flags & FIO_PIPEIO)
199 if (!fio_file_open(f)) {
200 if (td->io_ops->open_file(td, f)) {
201 log_err("fio: cannot pre-read, failed to open file\n");
207 old_runstate = td->runstate;
208 td_set_runstate(td, TD_PRE_READING);
210 bs = td->o.max_bs[DDIR_READ];
214 lseek(f->fd, f->file_offset, SEEK_SET);
217 while (left && !td->terminate) {
221 r = read(f->fd, b, bs);
227 td_verror(td, EIO, "pre_read");
232 td_set_runstate(td, old_runstate);
235 td->io_ops->close_file(td, f);
240 static unsigned long long get_rand_file_size(struct thread_data *td)
242 unsigned long long ret, sized;
245 if (td->o.use_os_rand) {
246 r = os_random_long(&td->file_size_state);
247 sized = td->o.file_size_high - td->o.file_size_low;
248 ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
250 r = __rand(&td->__file_size_state);
251 sized = td->o.file_size_high - td->o.file_size_low;
252 ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0)));
255 ret += td->o.file_size_low;
256 ret -= (ret % td->o.rw_min_bs);
260 static int file_size(struct thread_data *td, struct fio_file *f)
264 if (stat(f->file_name, &st) == -1) {
265 td_verror(td, errno, "fstat");
269 f->real_file_size = st.st_size;
273 static int bdev_size(struct thread_data *td, struct fio_file *f)
275 unsigned long long bytes = 0;
278 if (td->io_ops->open_file(td, f)) {
279 log_err("fio: failed opening blockdev %s for size check\n",
284 r = blockdev_size(f, &bytes);
286 td_verror(td, r, "blockdev_size");
291 log_err("%s: zero sized block device?\n", f->file_name);
295 f->real_file_size = bytes;
296 td->io_ops->close_file(td, f);
299 td->io_ops->close_file(td, f);
303 static int char_size(struct thread_data *td, struct fio_file *f)
305 #ifdef FIO_HAVE_CHARDEV_SIZE
306 unsigned long long bytes = 0;
309 if (td->io_ops->open_file(td, f)) {
310 log_err("fio: failed opening blockdev %s for size check\n",
315 r = chardev_size(f, &bytes);
317 td_verror(td, r, "chardev_size");
322 log_err("%s: zero sized char device?\n", f->file_name);
326 f->real_file_size = bytes;
327 td->io_ops->close_file(td, f);
330 td->io_ops->close_file(td, f);
333 f->real_file_size = -1ULL;
338 static int get_file_size(struct thread_data *td, struct fio_file *f)
342 if (fio_file_size_known(f))
345 if (f->filetype == FIO_TYPE_FILE)
346 ret = file_size(td, f);
347 else if (f->filetype == FIO_TYPE_BD)
348 ret = bdev_size(td, f);
349 else if (f->filetype == FIO_TYPE_CHAR)
350 ret = char_size(td, f);
352 f->real_file_size = -1;
357 if (f->file_offset > f->real_file_size) {
358 log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
359 (unsigned long long) f->file_offset,
360 (unsigned long long) f->real_file_size);
364 fio_file_set_size_known(f);
368 static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
369 unsigned long long off,
370 unsigned long long len)
377 off = f->file_offset;
379 if (len == -1ULL || off == -1ULL)
382 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
386 * FIXME: add blockdev flushing too
389 ret = posix_madvise(f->mmap_ptr, f->mmap_sz, POSIX_MADV_DONTNEED);
391 (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
393 } else if (f->filetype == FIO_TYPE_FILE) {
394 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
395 } else if (f->filetype == FIO_TYPE_BD) {
396 ret = blockdev_invalidate_cache(f);
397 if (ret < 0 && errno == EACCES && geteuid()) {
399 log_err("fio: only root may flush block "
400 "devices. Cache flush bypassed!\n");
405 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
409 td_verror(td, errno, "invalidate_cache");
411 } else if (ret > 0) {
412 td_verror(td, ret, "invalidate_cache");
420 int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
422 if (!fio_file_open(f))
425 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
428 int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
432 dprint(FD_FILE, "fd close %s\n", f->file_name);
436 if (close(f->fd) < 0)
441 if (f->shadow_fd != -1) {
449 int file_lookup_open(struct fio_file *f, int flags)
451 struct fio_file *__f;
454 __f = lookup_file_hash(f->file_name);
456 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
458 * racy, need the __f->lock locked
463 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
467 f->fd = open(f->file_name, flags, 0600);
471 static int file_close_shadow_fds(struct thread_data *td)
477 for_each_file(td, f, i) {
478 if (f->shadow_fd == -1)
489 int generic_open_file(struct thread_data *td, struct fio_file *f)
495 dprint(FD_FILE, "fd open %s\n", f->file_name);
497 if (td_trim(td) && f->filetype != FIO_TYPE_BD) {
498 log_err("fio: trim only applies to block device\n");
502 if (!strcmp(f->file_name, "-")) {
504 log_err("fio: can't read/write to stdin/out\n");
510 * move output logging to stderr, if we are writing to stdout
519 flags |= OS_O_DIRECT;
522 if (td->o.create_on_open)
525 if (f->filetype != FIO_TYPE_FILE)
526 flags |= FIO_O_NOATIME;
533 if (f->filetype == FIO_TYPE_FILE)
537 f->fd = dup(STDOUT_FILENO);
539 from_hash = file_lookup_open(f, flags);
540 } else if (td_read(td)) {
541 if (f->filetype == FIO_TYPE_CHAR && !read_only)
547 f->fd = dup(STDIN_FILENO);
549 from_hash = file_lookup_open(f, flags);
552 from_hash = file_lookup_open(f, flags);
556 char buf[FIO_VERROR_SIZE];
559 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
560 flags &= ~FIO_O_NOATIME;
563 if (__e == EMFILE && file_close_shadow_fds(td))
566 snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
568 if (__e == EINVAL && (flags & OS_O_DIRECT)) {
569 log_err("fio: looks like your file system does not " \
570 "support direct=1/buffered=0\n");
573 td_verror(td, __e, buf);
576 if (!from_hash && f->fd != -1) {
577 if (add_file_hash(f)) {
581 * Stash away descriptor for later close. This is to
582 * work-around a "feature" on Linux, where a close of
583 * an fd that has been opened for write will trigger
584 * udev to call blkid to check partitions, fs id, etc.
585 * That polutes the device cache, which can slow down
586 * unbuffered accesses.
588 if (f->shadow_fd == -1)
589 f->shadow_fd = f->fd;
592 * OK to ignore, we haven't done anything
595 ret = generic_close_file(td, f);
604 int generic_get_file_size(struct thread_data *td, struct fio_file *f)
606 return get_file_size(td, f);
610 * open/close all files, so that ->real_file_size gets set
612 static int get_file_sizes(struct thread_data *td)
618 for_each_file(td, f, i) {
619 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
622 if (td_io_get_file_size(td, f)) {
623 if (td->error != ENOENT) {
624 log_err("%s\n", td->verror);
630 if (f->real_file_size == -1ULL && td->o.size)
631 f->real_file_size = td->o.size / td->o.nr_files;
638 struct flist_head list;
645 * Get free number of bytes for each file on each unique mount.
647 static unsigned long long get_fs_free_counts(struct thread_data *td)
649 struct flist_head *n, *tmp;
650 unsigned long long ret = 0;
651 struct fio_mount *fm;
656 for_each_file(td, f, i) {
660 if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
661 if (f->real_file_size != -1ULL)
662 ret += f->real_file_size;
664 } else if (f->filetype != FIO_TYPE_FILE)
667 strcpy(buf, f->file_name);
669 if (stat(buf, &sb) < 0) {
673 if (stat(buf, &sb) < 0)
678 flist_for_each(n, &list) {
679 fm = flist_entry(n, struct fio_mount, list);
680 if (fm->key == sb.st_dev)
689 fm = malloc(sizeof(*fm));
690 strcpy(fm->__base, buf);
691 fm->base = basename(fm->__base);
693 flist_add(&fm->list, &list);
696 flist_for_each_safe(n, tmp, &list) {
697 unsigned long long sz;
699 fm = flist_entry(n, struct fio_mount, list);
700 flist_del(&fm->list);
702 sz = get_fs_size(fm->base);
703 if (sz && sz != -1ULL)
712 uint64_t get_start_offset(struct thread_data *td)
714 return td->o.start_offset +
715 (td->thread_number - 1) * td->o.offset_increment;
719 * Open the files and setup files sizes, creating files if necessary.
721 int setup_files(struct thread_data *td)
723 unsigned long long total_size, extend_size;
724 struct thread_options *o = &td->o;
727 int err = 0, need_extend;
730 dprint(FD_FILE, "setup files\n");
732 old_state = td->runstate;
733 td_set_runstate(td, TD_SETTING_UP);
735 if (o->read_iolog_file)
739 * if ioengine defines a setup() method, it's responsible for
740 * opening the files and setting f->real_file_size to indicate
741 * the valid range for that file.
743 if (td->io_ops->setup)
744 err = td->io_ops->setup(td);
746 err = get_file_sizes(td);
752 * check sizes. if the files/devices do not exist and the size
753 * isn't passed to fio, abort.
756 for_each_file(td, f, i) {
757 if (f->real_file_size == -1ULL)
760 total_size += f->real_file_size;
764 td->fill_device_size = get_fs_free_counts(td);
767 * device/file sizes are zero and no size given, punt
769 if ((!total_size || total_size == -1ULL) && !o->size &&
770 !(td->io_ops->flags & FIO_NOIO) && !o->fill_device &&
771 !(o->nr_files && (o->file_size_low || o->file_size_high))) {
772 log_err("%s: you need to specify size=\n", o->name);
773 td_verror(td, EINVAL, "total_file_size");
778 * now file sizes are known, so we can set ->io_size. if size= is
779 * not given, ->io_size is just equal to ->real_file_size. if size
780 * is given, ->io_size is size / nr_files.
782 extend_size = total_size = 0;
784 for_each_file(td, f, i) {
785 f->file_offset = get_start_offset(td);
787 if (!o->file_size_low) {
789 * no file size range given, file size is equal to
790 * total size divided by number of files. if that is
791 * zero, set it to the real file size.
793 f->io_size = o->size / o->nr_files;
795 f->io_size = f->real_file_size - f->file_offset;
796 } else if (f->real_file_size < o->file_size_low ||
797 f->real_file_size > o->file_size_high) {
798 if (f->file_offset > o->file_size_low)
801 * file size given. if it's fixed, use that. if it's a
802 * range, generate a random size in-between.
804 if (o->file_size_low == o->file_size_high)
805 f->io_size = o->file_size_low - f->file_offset;
807 f->io_size = get_rand_file_size(td)
811 f->io_size = f->real_file_size - f->file_offset;
813 if (f->io_size == -1ULL)
817 f->io_size = (f->io_size * o->size_percent) / 100;
818 total_size += f->io_size;
821 if (f->filetype == FIO_TYPE_FILE &&
822 (f->io_size + f->file_offset) > f->real_file_size &&
823 !(td->io_ops->flags & FIO_DISKLESSIO)) {
824 if (!o->create_on_open) {
826 extend_size += (f->io_size + f->file_offset);
828 f->real_file_size = f->io_size + f->file_offset;
829 fio_file_set_extend(f);
833 if (!o->size || o->size > total_size)
834 o->size = total_size;
837 * See if we need to extend some files
841 if (output_format == FIO_OUTPUT_NORMAL)
842 log_info("%s: Laying out IO file(s) (%u file(s) /"
843 " %lluMB)\n", o->name, need_extend,
846 for_each_file(td, f, i) {
847 unsigned long long old_len = -1ULL, extend_len = -1ULL;
849 if (!fio_file_extend(f))
852 assert(f->filetype == FIO_TYPE_FILE);
853 fio_file_clear_extend(f);
854 if (!o->fill_device) {
855 old_len = f->real_file_size;
856 extend_len = f->io_size + f->file_offset -
859 f->real_file_size = (f->io_size + f->file_offset);
860 err = extend_file(td, f);
864 err = __file_invalidate_cache(td, f, old_len,
878 o->zone_size = o->size;
881 * iolog already set the total io size, if we read back
884 if (!o->read_iolog_file)
885 td->total_io_size = o->size * o->loops;
891 td_set_runstate(td, old_state);
894 log_err("%s: you need to specify valid offset=\n", o->name);
896 td_set_runstate(td, old_state);
900 int pre_read_files(struct thread_data *td)
905 dprint(FD_FILE, "pre_read files\n");
907 for_each_file(td, f, i) {
908 pre_read_file(td, f);
914 static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
916 unsigned int range_size, seed;
917 unsigned long nranges;
920 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
921 file_size = min(f->real_file_size, f->io_size);
923 nranges = (file_size + range_size - 1) / range_size;
925 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
926 if (!td->o.rand_repeatable)
927 seed = td->rand_seeds[4];
929 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
930 zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed);
932 pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
937 static int init_rand_distribution(struct thread_data *td)
943 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
946 state = td->runstate;
947 td_set_runstate(td, TD_SETTING_UP);
948 for_each_file(td, f, i)
949 __init_rand_distribution(td, f);
950 td_set_runstate(td, state);
955 int init_random_map(struct thread_data *td)
957 unsigned long long blocks;
961 if (init_rand_distribution(td))
966 for_each_file(td, f, i) {
967 uint64_t file_size = min(f->real_file_size, f->io_size);
969 blocks = file_size / (unsigned long long) td->o.rw_min_bs;
971 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
974 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
976 if (!lfsr_init(&f->lfsr, blocks, seed, seed & 0xF))
978 } else if (!td->o.norandommap) {
979 f->io_axmap = axmap_new(blocks);
982 } else if (td->o.norandommap)
985 if (!td->o.softrandommap) {
986 log_err("fio: failed allocating random map. If running"
987 " a large number of jobs, try the 'norandommap'"
988 " option or set 'softrandommap'. Or give"
989 " a larger --alloc-size to fio.\n");
993 log_info("fio: file %s failed allocating random map. Running "
994 "job without.\n", f->file_name);
1000 void close_files(struct thread_data *td)
1005 for_each_file(td, f, i) {
1006 if (fio_file_open(f))
1007 td_io_close_file(td, f);
1011 void close_and_free_files(struct thread_data *td)
1016 dprint(FD_FILE, "close files\n");
1018 for_each_file(td, f, i) {
1019 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1020 dprint(FD_FILE, "free unlink %s\n", f->file_name);
1021 unlink(f->file_name);
1024 if (fio_file_open(f))
1025 td_io_close_file(td, f);
1027 remove_file_hash(f);
1029 sfree(f->file_name);
1030 f->file_name = NULL;
1031 axmap_free(f->io_axmap);
1036 td->o.filename = NULL;
1038 free(td->file_locks);
1039 td->files_index = 0;
1041 td->file_locks = NULL;
1045 static void get_file_type(struct fio_file *f)
1049 if (!strcmp(f->file_name, "-"))
1050 f->filetype = FIO_TYPE_PIPE;
1052 f->filetype = FIO_TYPE_FILE;
1054 /* \\.\ is the device namespace in Windows, where every file is
1056 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
1057 f->filetype = FIO_TYPE_BD;
1059 if (!stat(f->file_name, &sb)) {
1060 if (S_ISBLK(sb.st_mode))
1061 f->filetype = FIO_TYPE_BD;
1062 else if (S_ISCHR(sb.st_mode))
1063 f->filetype = FIO_TYPE_CHAR;
1064 else if (S_ISFIFO(sb.st_mode))
1065 f->filetype = FIO_TYPE_PIPE;
1069 int add_file(struct thread_data *td, const char *fname)
1071 int cur_files = td->files_index;
1072 char file_name[PATH_MAX];
1076 dprint(FD_FILE, "add file %s\n", fname);
1078 f = smalloc(sizeof(*f));
1080 log_err("fio: smalloc OOM\n");
1086 fio_file_reset(td, f);
1088 if (td->files_size <= td->files_index) {
1089 unsigned int new_size = td->o.nr_files + 1;
1091 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1093 td->files = realloc(td->files, new_size * sizeof(f));
1094 if (td->files == NULL) {
1095 log_err("fio: realloc OOM\n");
1098 if (td->o.file_lock_mode != FILE_LOCK_NONE) {
1099 td->file_locks = realloc(td->file_locks, new_size);
1100 if (!td->file_locks) {
1101 log_err("fio: realloc OOM\n");
1104 td->file_locks[cur_files] = FILE_LOCK_NONE;
1106 td->files_size = new_size;
1108 td->files[cur_files] = f;
1109 f->fileno = cur_files;
1112 * init function, io engine may not be loaded yet
1114 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
1115 f->real_file_size = -1ULL;
1117 if (td->o.directory)
1118 len = sprintf(file_name, "%s/", td->o.directory);
1120 sprintf(file_name + len, "%s", fname);
1121 f->file_name = smalloc_strdup(file_name);
1122 if (!f->file_name) {
1123 log_err("fio: smalloc OOM\n");
1129 switch (td->o.file_lock_mode) {
1130 case FILE_LOCK_NONE:
1132 case FILE_LOCK_READWRITE:
1133 f->rwlock = fio_rwlock_init();
1135 case FILE_LOCK_EXCLUSIVE:
1136 f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
1139 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1144 if (f->filetype == FIO_TYPE_FILE)
1145 td->nr_normal_files++;
1147 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1153 int add_file_exclusive(struct thread_data *td, const char *fname)
1158 for_each_file(td, f, i) {
1159 if (!strcmp(f->file_name, fname))
1163 return add_file(td, fname);
1166 void get_file(struct fio_file *f)
1168 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
1169 assert(fio_file_open(f));
1173 int put_file(struct thread_data *td, struct fio_file *f)
1175 int f_ret = 0, ret = 0;
1177 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
1179 if (!fio_file_open(f)) {
1180 assert(f->fd == -1);
1184 assert(f->references);
1185 if (--f->references)
1188 if (should_fsync(td) && td->o.fsync_on_close)
1189 f_ret = fsync(f->fd);
1191 if (td->io_ops->close_file)
1192 ret = td->io_ops->close_file(td, f);
1197 td->nr_open_files--;
1198 fio_file_clear_open(f);
1199 assert(f->fd == -1);
1203 void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
1205 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1208 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1209 if (ddir == DDIR_READ)
1210 fio_rwlock_read(f->rwlock);
1212 fio_rwlock_write(f->rwlock);
1213 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1214 fio_mutex_down(f->lock);
1216 td->file_locks[f->fileno] = td->o.file_lock_mode;
1219 void unlock_file(struct thread_data *td, struct fio_file *f)
1221 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1224 if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1225 fio_rwlock_unlock(f->rwlock);
1226 else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1227 fio_mutex_up(f->lock);
1229 td->file_locks[f->fileno] = FILE_LOCK_NONE;
1232 void unlock_file_all(struct thread_data *td, struct fio_file *f)
1234 if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
1238 static int recurse_dir(struct thread_data *td, const char *dirname)
1244 D = opendir(dirname);
1246 char buf[FIO_VERROR_SIZE];
1248 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
1249 td_verror(td, errno, buf);
1253 while ((dir = readdir(D)) != NULL) {
1254 char full_path[PATH_MAX];
1257 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1260 sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
1262 if (lstat(full_path, &sb) == -1) {
1263 if (errno != ENOENT) {
1264 td_verror(td, errno, "stat");
1269 if (S_ISREG(sb.st_mode)) {
1270 add_file(td, full_path);
1274 if (!S_ISDIR(sb.st_mode))
1277 ret = recurse_dir(td, full_path);
1286 int add_dir_files(struct thread_data *td, const char *path)
1288 int ret = recurse_dir(td, path);
1291 log_info("fio: opendir added %d files\n", td->o.nr_files);
1296 void dup_files(struct thread_data *td, struct thread_data *org)
1301 dprint(FD_FILE, "dup files: %d\n", org->files_index);
1306 td->files = malloc(org->files_index * sizeof(f));
1308 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1309 td->file_locks = malloc(org->files_index);
1311 for_each_file(org, f, i) {
1312 struct fio_file *__f;
1314 __f = smalloc(sizeof(*__f));
1316 log_err("fio: smalloc OOM\n");
1320 fio_file_reset(td, __f);
1323 __f->file_name = smalloc_strdup(f->file_name);
1324 if (!__f->file_name) {
1325 log_err("fio: smalloc OOM\n");
1329 __f->filetype = f->filetype;
1337 * Returns the index that matches the filename, or -1 if not there
1339 int get_fileno(struct thread_data *td, const char *fname)
1344 for_each_file(td, f, i)
1345 if (!strcmp(f->file_name, fname))
1352 * For log usage, where we add/open/close files automatically
1354 void free_release_files(struct thread_data *td)
1357 td->files_index = 0;
1358 td->nr_normal_files = 0;
1361 void fio_file_reset(struct thread_data *td, struct fio_file *f)
1363 f->last_pos = f->file_offset;
1364 f->last_start = -1ULL;
1366 axmap_reset(f->io_axmap);
1367 if (td->o.random_generator == FIO_RAND_GEN_LFSR)
1368 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);