Update fio io engine version

[fio.git] / filesetup.c

diff --git a/filesetup.c b/filesetup.c
index f64c7a119d66cbf43173e894873b357e33dae768..5ad626a9df38a9b77bf6360eeabc4cebd42f760a 100644 (file)
--- a/filesetup.c
+++ b/filesetup.c
@@ -12,19 +12,31 @@
 
 static int extend_file(struct thread_data *td, struct fio_file *f)
 {
+       int r, new_layout = 0, flags;
        unsigned long long left;
        unsigned int bs;
        char *b;
-       int r;
 
-       if (f->flags & FIO_FILE_EXISTS) {
+       /*
+        * check if we need to lay the file out complete again. fio
+        * does that for operations involving reads, or for writes
+        * where overwrite is set
+        */
+       if (td_read(td) || (td_write(td) && td->o.overwrite))
+               new_layout = 1;
+
+       if (new_layout && (f->flags & FIO_FILE_EXISTS)) {
                if (unlink(f->file_name) < 0) {
                        td_verror(td, errno, "unlink");
                        return 1;
                }
        }
 
-       f->fd = open(f->file_name, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+       flags = O_WRONLY | O_CREAT;
+       if (new_layout)
+               flags |= O_TRUNC;
+
+       f->fd = open(f->file_name, flags, 0644);
        if (f->fd < 0) {
                td_verror(td, errno, "open");
                return 1;
@@ -40,6 +52,9 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
                goto err;
        }
 
+       if (!new_layout)
+               goto done;
+
        b = malloc(td->o.max_bs[DDIR_WRITE]);
        memset(b, 0, td->o.max_bs[DDIR_WRITE]);
 
@@ -70,6 +85,7 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
                fsync(f->fd);
 
        free(b);
+done:
        close(f->fd);
        f->fd = -1;
        return 0;
@@ -214,21 +230,6 @@ int generic_open_file(struct thread_data *td, struct fio_file *f)
        if (get_file_size(td, f))
                goto err;
 
-       if (td->o.invalidate_cache && file_invalidate_cache(td, f))
-               goto err;
-
-       if (td->o.fadvise_hint) {
-               if (td_random(td))
-                       flags = POSIX_FADV_RANDOM;
-               else
-                       flags = POSIX_FADV_SEQUENTIAL;
-
-               if (fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) {
-                       td_verror(td, errno, "fadvise");
-                       goto err;
-               }
-       }
-
        return 0;
 err:
        close(f->fd);
@@ -262,25 +263,18 @@ int open_files(struct thread_data *td)
 /*
  * open/close all files, so that ->real_file_size gets set
  */
-static int get_file_sizes(struct thread_data *td)
+static void get_file_sizes(struct thread_data *td)
 {
        struct fio_file *f;
        unsigned int i;
-       int err = 0;
 
        for_each_file(td, f, i) {
-               err = td->io_ops->open_file(td, f);
-               if (err) {
+               if (td->io_ops->open_file(td, f)) {
                        td->error = 0;
                        memset(td->verror, 0, sizeof(td->verror));
-                       err = 0;
-                       continue;
-               }
-
-               td->io_ops->close_file(td, f);
+               } else
+                       td->io_ops->close_file(td, f);
        }
-
-       return err;
 }
 
 /*
@@ -291,7 +285,7 @@ int setup_files(struct thread_data *td)
        unsigned long long total_size, extend_size;
        struct fio_file *f;
        unsigned int i;
-       int err, need_extend;
+       int err = 0, need_extend;
 
        /*
         * if ioengine defines a setup() method, it's responsible for
@@ -301,7 +295,7 @@ int setup_files(struct thread_data *td)
        if (td->io_ops->setup)
                err = td->io_ops->setup(td);
        else
-               err = get_file_sizes(td);
+               get_file_sizes(td);
 
        if (err)
                return err;