X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=filesetup.c;h=f0e3b34fd8ae1e90424c04a37ec1cba4b71e4a38;hp=33b47c923b5062fbd5bbc5919e4cd5e8bf127566;hb=bcbfeefa7bce8383cf85fe59ced91f54821dfbd2;hpb=57e54e087e051186d18cdedad20a2460463d4d30

diff --git a/filesetup.c b/filesetup.c
index 33b47c92..f0e3b34f 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -11,6 +11,7 @@
 #include "fio.h"
 #include "smalloc.h"
 #include "filehash.h"
+#include "options.h"
 #include "os/os.h"
 #include "hash.h"
 #include "lib/axmap.h"
@@ -21,6 +22,8 @@
 
 static int root_warn;
 
+static FLIST_HEAD(filename_list);
+
 static inline void clear_error(struct thread_data *td)
 {
 	td->error = 0;
@@ -121,8 +124,10 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
 		dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
 					(unsigned long long) f->real_file_size);
 		if (ftruncate(f->fd, f->real_file_size) == -1) {
-			td_verror(td, errno, "ftruncate");
-			goto err;
+			if (errno != EFBIG) {
+				td_verror(td, errno, "ftruncate");
+				goto err;
+			}
 		}
 	}
 
@@ -519,6 +524,13 @@ int generic_open_file(struct thread_data *td, struct fio_file *f)
 		goto skip_flags;
 	if (td->o.odirect)
 		flags |= OS_O_DIRECT;
+	if (td->o.oatomic) {
+		if (!FIO_O_ATOMIC) {
+			td_verror(td, EINVAL, "OS does not support atomic IO");
+			return 1;
+		}
+		flags |= OS_O_DIRECT | FIO_O_ATOMIC;
+	}
 	if (td->o.sync_io)
 		flags |= O_SYNC;
 	if (td->o.create_on_open)
@@ -584,7 +596,7 @@ open_again:
 			 * work-around a "feature" on Linux, where a close of
 			 * an fd that has been opened for write will trigger
 			 * udev to call blkid to check partitions, fs id, etc.
-			 * That polutes the device cache, which can slow down
+			 * That pollutes the device cache, which can slow down
 			 * unbuffered accesses.
 			 */
 			if (f->shadow_fd == -1)
@@ -725,9 +737,11 @@ int setup_files(struct thread_data *td)
 	unsigned long long total_size, extend_size;
 	struct thread_options *o = &td->o;
 	struct fio_file *f;
-	unsigned int i;
+	unsigned int i, nr_fs_extra = 0;
 	int err = 0, need_extend;
 	int old_state;
+	const unsigned int bs = td_min_bs(td);
+	uint64_t fs = 0;
 
 	dprint(FD_FILE, "setup files\n");
 
@@ -776,6 +790,20 @@ int setup_files(struct thread_data *td)
 		goto err_out;
 	}
 
+	/*
+	 * Calculate per-file size and potential extra size for the
+	 * first files, if needed.
+	 */
+	if (!o->file_size_low) {
+		uint64_t all_fs;
+
+		fs = o->size / o->nr_files;
+		all_fs = fs * o->nr_files;
+
+		if (all_fs < o->size)
+			nr_fs_extra = (o->size - all_fs) / bs;
+	}
+
 	/*
 	 * now file sizes are known, so we can set ->io_size. if size= is
 	 * not given, ->io_size is just equal to ->real_file_size. if size
@@ -789,10 +817,17 @@ int setup_files(struct thread_data *td)
 		if (!o->file_size_low) {
 			/*
 			 * no file size range given, file size is equal to
-			 * total size divided by number of files. if that is
-			 * zero, set it to the real file size.
+			 * total size divided by number of files. If that is
+			 * zero, set it to the real file size. If the size
+			 * doesn't divide nicely with the min blocksize,
+			 * make the first files bigger.
 			 */
-			f->io_size = o->size / o->nr_files;
+			f->io_size = fs;
+			if (nr_fs_extra) {
+				nr_fs_extra--;
+				f->io_size += bs;
+			}
+
 			if (!f->io_size)
 				f->io_size = f->real_file_size - f->file_offset;
 		} else if (f->real_file_size < o->file_size_low ||
@@ -1041,6 +1076,7 @@ void close_and_free_files(struct thread_data *td)
 	td->files_index = 0;
 	td->files = NULL;
 	td->file_locks = NULL;
+	td->o.file_lock_mode = FILE_LOCK_NONE;
 	td->o.nr_files = 0;
 }
 
@@ -1068,7 +1104,48 @@ static void get_file_type(struct fio_file *f)
 	}
 }
 
-int add_file(struct thread_data *td, const char *fname)
+static void set_already_allocated(const char *fname) {
+	struct file_name *fn;
+
+	fn = malloc(sizeof(struct file_name));
+	fn->filename = strdup(fname);
+	flist_add_tail(&fn->list, &filename_list);
+}
+
+static int is_already_allocated(const char *fname)
+{
+	struct flist_head *entry;
+	char *filename;
+
+	if (!flist_empty(&filename_list))
+	{
+		flist_for_each(entry, &filename_list) {
+			filename = flist_entry(entry, struct file_name, list)->filename;
+
+			if (strcmp(filename, fname) == 0)
+				return 1;
+		}
+	}
+
+	return 0;
+}
+
+static void free_already_allocated() {
+	struct flist_head *entry, *tmp;
+	struct file_name *fn;
+
+	if (!flist_empty(&filename_list))
+	{
+		flist_for_each_safe(entry, tmp, &filename_list) {
+			fn = flist_entry(entry, struct file_name, list);
+			free(fn->filename);
+			flist_del(&fn->list);
+			free(fn);
+		}
+	}
+}
+
+int add_file(struct thread_data *td, const char *fname, int numjob)
 {
 	int cur_files = td->files_index;
 	char file_name[PATH_MAX];
@@ -1077,6 +1154,15 @@ int add_file(struct thread_data *td, const char *fname)
 
 	dprint(FD_FILE, "add file %s\n", fname);
 
+	if (td->o.directory)
+		len = set_name_idx(file_name, td->o.directory, numjob);
+
+	sprintf(file_name + len, "%s", fname);
+
+	/* clean cloned siblings using existing files */
+	if (numjob && is_already_allocated(file_name))
+		return 0;
+
 	f = smalloc(sizeof(*f));
 	if (!f) {
 		log_err("fio: smalloc OOM\n");
@@ -1116,10 +1202,6 @@ int add_file(struct thread_data *td, const char *fname)
 	if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
 		f->real_file_size = -1ULL;
 
-	if (td->o.directory)
-		len = sprintf(file_name, "%s/", td->o.directory);
-
-	sprintf(file_name + len, "%s", fname);
 	f->file_name = smalloc_strdup(file_name);
 	if (!f->file_name) {
 		log_err("fio: smalloc OOM\n");
@@ -1146,6 +1228,8 @@ int add_file(struct thread_data *td, const char *fname)
 	if (f->filetype == FIO_TYPE_FILE)
 		td->nr_normal_files++;
 
+	set_already_allocated(file_name);
+
 	dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
 							cur_files);
 
@@ -1162,7 +1246,7 @@ int add_file_exclusive(struct thread_data *td, const char *fname)
 			return i;
 	}
 
-	return add_file(td, fname);
+	return add_file(td, fname, 0);
 }
 
 void get_file(struct fio_file *f)
@@ -1233,6 +1317,8 @@ void unlock_file(struct thread_data *td, struct fio_file *f)
 
 void unlock_file_all(struct thread_data *td, struct fio_file *f)
 {
+	if (td->o.file_lock_mode == FILE_LOCK_NONE || !td->file_locks)
+		return;
 	if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
 		unlock_file(td, f);
 }
@@ -1269,7 +1355,7 @@ static int recurse_dir(struct thread_data *td, const char *dirname)
 		}
 
 		if (S_ISREG(sb.st_mode)) {
-			add_file(td, full_path);
+			add_file(td, full_path, 0);
 			td->o.nr_files++;
 			continue;
 		}
@@ -1331,6 +1417,11 @@ void dup_files(struct thread_data *td, struct thread_data *org)
 			__f->filetype = f->filetype;
 		}
 
+		if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
+			__f->lock = f->lock;
+		else if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
+			__f->rwlock = f->rwlock;
+
 		td->files[i] = __f;
 	}
 }
@@ -1369,3 +1460,20 @@ void fio_file_reset(struct thread_data *td, struct fio_file *f)
 	if (td->o.random_generator == FIO_RAND_GEN_LFSR)
 		lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
 }
+
+int fio_files_done(struct thread_data *td)
+{
+	struct fio_file *f;
+	unsigned int i;
+
+	for_each_file(td, f, i)
+		if (!fio_file_done(f))
+			return 0;
+
+	return 1;
+}
+
+/* free memory used in initialization phase only */
+void filesetup_mem_free() {
+	free_already_allocated();
+}