X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=log.c;h=6fe4961255c710a0ccc82a3e2c66478eb0f334d9;hp=790d3a1e32c9d4c046bb17be0f10f44a74f5fef3;hb=720e84ad8292ab7b3a8e264fb00db71d796600d1;hpb=748b23a36509240af1debf5f7f3ca8ef153548ea

diff --git a/log.c b/log.c
index 790d3a1e..6fe49612 100644
--- a/log.c
+++ b/log.c
@@ -4,15 +4,16 @@
  */
 #include <stdio.h>
 #include <stdlib.h>
+#include <libgen.h>
 #include <assert.h>
-#include "list.h"
+#include "flist.h"
 #include "fio.h"
 
 static const char iolog_ver2[] = "fio version 2 iolog";
 
 void queue_io_piece(struct thread_data *td, struct io_piece *ipo)
 {
-	list_add_tail(&ipo->list, &td->io_log_list);
+	flist_add_tail(&ipo->list, &td->io_log_list);
 	td->total_io_size += ipo->len;
 }
 
@@ -40,6 +41,13 @@ void log_file(struct thread_data *td, struct fio_file *f,
 	if (!td->o.write_iolog_file)
 		return;
 
+
+	/*
+	 * this happens on the pre-open/close done before the job starts
+	 */
+	if (!td->iolog_f)
+		return;
+
 	fprintf(td->iolog_f, "%s %s\n", f->file_name, act[what]);
 }
 
@@ -101,11 +109,11 @@ int read_iolog_get(struct thread_data *td, struct io_u *io_u)
 {
 	struct io_piece *ipo;
 
-	while (!list_empty(&td->io_log_list)) {
+	while (!flist_empty(&td->io_log_list)) {
 		int ret;
 
-		ipo = list_entry(td->io_log_list.next, struct io_piece, list);
-		list_del(&ipo->list);
+		ipo = flist_entry(td->io_log_list.next, struct io_piece, list);
+		flist_del(&ipo->list);
 
 		ret = ipo_special(td, ipo);
 		if (ret < 0) {
@@ -147,9 +155,9 @@ void prune_io_piece_log(struct thread_data *td)
 		free(ipo);
 	}
 
-	while (!list_empty(&td->io_hist_list)) {
-		ipo = list_entry(td->io_hist_list.next, struct io_piece, list);
-		list_del(&ipo->list);
+	while (!flist_empty(&td->io_hist_list)) {
+		ipo = flist_entry(td->io_hist_list.next, struct io_piece, list);
+		flist_del(&ipo->list);
 		free(ipo);
 	}
 }
@@ -175,28 +183,40 @@ void log_io_piece(struct thread_data *td, struct io_u *io_u)
 	 *
 	 * For both these cases, just reading back data in the order we
 	 * wrote it out is the fastest.
+	 *
+	 * One exception is if we don't have a random map AND we are doing
+	 * verifies, in that case we need to check for duplicate blocks and
+	 * drop the old one, which we rely on the rb insert/lookup for
+	 * handling.
 	 */
-	if (!td_random(td) || !td->o.overwrite) {
-		INIT_LIST_HEAD(&ipo->list);
-		list_add_tail(&ipo->list, &td->io_hist_list);
+	if ((!td_random(td) || !td->o.overwrite) &&
+	      (file_randommap(td, ipo->file) || td->o.verify == VERIFY_NONE)) {
+		INIT_FLIST_HEAD(&ipo->list);
+		flist_add_tail(&ipo->list, &td->io_hist_list);
 		return;
 	}
 
 	RB_CLEAR_NODE(&ipo->rb_node);
-	p = &td->io_hist_tree.rb_node;
-	parent = NULL;
 
 	/*
 	 * Sort the entry into the verification list
 	 */
+restart:
+	p = &td->io_hist_tree.rb_node;
+	parent = NULL;
 	while (*p) {
 		parent = *p;
 
 		__ipo = rb_entry(parent, struct io_piece, rb_node);
-		if (ipo->offset <= __ipo->offset)
+		if (ipo->offset < __ipo->offset)
 			p = &(*p)->rb_left;
-		else
+		else if (ipo->offset > __ipo->offset)
 			p = &(*p)->rb_right;
+		else {
+			assert(ipo->len == __ipo->len);
+			rb_erase(parent, &td->io_hist_tree);
+			goto restart;
+		}
 	}
 
 	rb_link_node(&ipo->rb_node, parent, p);
@@ -299,7 +319,7 @@ static int read_iolog2(struct thread_data *td, FILE *f)
 		 */
 		ipo = malloc(sizeof(*ipo));
 		memset(ipo, 0, sizeof(*ipo));
-		INIT_LIST_HEAD(&ipo->list);
+		INIT_FLIST_HEAD(&ipo->list);
 		ipo->offset = offset;
 		ipo->len = bytes;
 		ipo->ddir = rw;
@@ -380,12 +400,14 @@ static int init_iolog_write(struct thread_data *td)
 	FILE *f;
 	unsigned int i;
 
-	f = fopen(td->o.write_iolog_file, "w+");
+	f = fopen(td->o.write_iolog_file, "a");
 	if (!f) {
 		perror("fopen write iolog");
 		return 1;
 	}
 
+	printf("log opened\n");
+
 	/*
 	 * That's it for writing, setup a log buffer and we're done.
 	  */
@@ -414,9 +436,6 @@ int init_iolog(struct thread_data *td)
 {
 	int ret = 0;
 
-	if (td->io_ops->flags & FIO_DISKLESSIO)
-		return 0;
-
 	if (td->o.read_iolog_file) {
 		/*
 		 * Check if it's a blktrace file and load that if possible.
@@ -447,7 +466,7 @@ void __finish_log(struct io_log *log, const char *name)
 	unsigned int i;
 	FILE *f;
 
-	f = fopen(name, "w");
+	f = fopen(name, "a");
 	if (!f) {
 		perror("fopen log");
 		return;
@@ -463,11 +482,17 @@ void __finish_log(struct io_log *log, const char *name)
 	free(log);
 }
 
-void finish_log(struct thread_data *td, struct io_log *log, const char *name)
+void finish_log_named(struct thread_data *td, struct io_log *log,
+		       const char *prefix, const char *postfix)
 {
 	char file_name[256], *p;
 
-	snprintf(file_name, 200, "%s_%s.log", td->o.name, name);
+	snprintf(file_name, 200, "%s_%s.log", prefix, postfix);
 	p = basename(file_name);
 	__finish_log(log, p);
 }
+
+void finish_log(struct thread_data *td, struct io_log *log, const char *name)
+{
+	finish_log_named(td, log, td->o.name, name);
+}