Replace redundant TD_F_NOIO flag with td->io_ops_init

[fio.git] / ioengines.c

diff --git a/ioengines.c b/ioengines.c
index e2e7280a8edcd0b46a2a2c9daa56914483cca143..c773f2ed3464a08fa6a51464d33d68a0231fc553 100644 (file)
--- a/ioengines.c
+++ b/ioengines.c
@@ -119,17 +119,18 @@ static struct ioengine_ops *dlopen_ioengine(struct thread_data *td,
                return NULL;
        }
 
-       ops->dlhandle = dlhandle;
+       td->io_ops_dlhandle = dlhandle;
        return ops;
 }
 
 struct ioengine_ops *load_ioengine(struct thread_data *td, const char *name)
 {
-       struct ioengine_ops *ops, *ret;
-       char engine[16];
+       struct ioengine_ops *ops;
+       char engine[64];
 
        dprint(FD_IO, "load ioengine %s\n", name);
 
+       engine[sizeof(engine) - 1] = '\0';
        strncpy(engine, name, sizeof(engine) - 1);
 
        /*
@@ -153,11 +154,7 @@ struct ioengine_ops *load_ioengine(struct thread_data *td, const char *name)
        if (check_engine_ops(ops))
                return NULL;
 
-       ret = malloc(sizeof(*ret));
-       memcpy(ret, ops, sizeof(*ret));
-       ret->data = NULL;
-
-       return ret;
+       return ops;
 }
 
 /*
@@ -173,10 +170,9 @@ void free_ioengine(struct thread_data *td)
                td->eo = NULL;
        }
 
-       if (td->io_ops->dlhandle)
-               dlclose(td->io_ops->dlhandle);
+       if (td->io_ops_dlhandle)
+               dlclose(td->io_ops_dlhandle);
 
-       free(td->io_ops);
        td->io_ops = NULL;
 }
 
@@ -186,7 +182,7 @@ void close_ioengine(struct thread_data *td)
 
        if (td->io_ops->cleanup) {
                td->io_ops->cleanup(td);
-               td->io_ops->data = NULL;
+               td->io_ops_data = NULL;
        }
 
        free_ioengine(td);
@@ -264,7 +260,7 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
        fio_ro_check(td, io_u);
 
        assert((io_u->flags & IO_U_F_FLIGHT) == 0);
-       io_u_set(io_u, IO_U_F_FLIGHT);
+       io_u_set(td, io_u, IO_U_F_FLIGHT);
 
        assert(fio_file_open(io_u->file));
 
@@ -276,7 +272,7 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
        io_u->error = 0;
        io_u->resid = 0;
 
-       if (td->io_ops->flags & FIO_SYNCIO) {
+       if (td_ioengine_flagged(td, FIO_SYNCIO)) {
                if (fio_fill_issue_time(td))
                        fio_gettime(&io_u->issue_time, NULL);
 
@@ -302,6 +298,7 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
                td->io_issues[ddir]--;
                td->io_issue_bytes[ddir] -= buflen;
                td->rate_io_issue_bytes[ddir] -= buflen;
+               io_u_clear(td, io_u, IO_U_F_FLIGHT);
        }
 
        /*
@@ -350,7 +347,7 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
                }
        }
 
-       if ((td->io_ops->flags & FIO_SYNCIO) == 0) {
+       if (!td_ioengine_flagged(td, FIO_SYNCIO)) {
                if (fio_fill_issue_time(td))
                        fio_gettime(&io_u->issue_time, NULL);
 
@@ -371,17 +368,17 @@ int td_io_init(struct thread_data *td)
 
        if (td->io_ops->init) {
                ret = td->io_ops->init(td);
-               if (ret && td->o.iodepth > 1) {
-                       log_err("fio: io engine init failed. Perhaps try"
-                               " reducing io depth?\n");
-               }
+               if (ret)
+                       log_err("fio: io engine %s init failed.%s\n",
+                               td->io_ops->name,
+                               td->o.iodepth > 1 ?
+                               " Perhaps try reducing io depth?" : "");
+               else
+                       td->io_ops_init = 1;
                if (!td->error)
                        td->error = ret;
        }
 
-       if (!ret && (td->io_ops->flags & FIO_NOIO))
-               td->flags |= TD_F_NOIO;
-
        return ret;
 }
 
@@ -445,20 +442,30 @@ int td_io_open_file(struct thread_data *td, struct fio_file *f)
                }
        }
 
-       if (td->io_ops->flags & FIO_DISKLESSIO)
+       if (td_ioengine_flagged(td, FIO_DISKLESSIO))
                goto done;
 
        if (td->o.invalidate_cache && file_invalidate_cache(td, f))
                goto err;
 
-       if (td->o.fadvise_hint &&
-           (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) {
+       if (td->o.fadvise_hint != F_ADV_NONE &&
+           (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_FILE)) {
                int flags;
 
-               if (td_random(td))
+               if (td->o.fadvise_hint == F_ADV_TYPE) {
+                       if (td_random(td))
+                               flags = POSIX_FADV_RANDOM;
+                       else
+                               flags = POSIX_FADV_SEQUENTIAL;
+               } else if (td->o.fadvise_hint == F_ADV_RANDOM)
                        flags = POSIX_FADV_RANDOM;
-               else
+               else if (td->o.fadvise_hint == F_ADV_SEQUENTIAL)
                        flags = POSIX_FADV_SEQUENTIAL;
+               else {
+                       log_err("fio: unknown fadvise type %d\n",
+                                                       td->o.fadvise_hint);
+                       flags = POSIX_FADV_NORMAL;
+               }
 
                if (posix_fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) {
                        td_verror(td, errno, "fadvise");
@@ -467,7 +474,7 @@ int td_io_open_file(struct thread_data *td, struct fio_file *f)
        }
 #ifdef FIO_HAVE_STREAMID
        if (td->o.fadvise_stream &&
-           (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) {
+           (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_FILE)) {
                off_t stream = td->o.fadvise_stream;
 
                if (posix_fadvise(f->fd, stream, f->io_size, POSIX_FADV_STREAMID) < 0) {
@@ -487,7 +494,12 @@ int td_io_open_file(struct thread_data *td, struct fio_file *f)
 
                if (ret) {
                        td_verror(td, ret, "fio_set_odirect");
-                       log_err("fio: the file system does not seem to support direct IO\n");
+                       if (ret == ENOTTY) { /* ENOTTY suggests RAW device or ZFS */
+                               log_err("fio: doing directIO to RAW devices or ZFS not supported\n");
+                       } else {
+                               log_err("fio: the file system does not seem to support direct IO\n");
+                       }
+
                        goto err;
                }
        }
@@ -525,8 +537,15 @@ int td_io_unlink_file(struct thread_data *td, struct fio_file *f)
 {
        if (td->io_ops->unlink_file)
                return td->io_ops->unlink_file(td, f);
-       else
-               return unlink(f->file_name);
+       else {
+               int ret;
+
+               ret = unlink(f->file_name);
+               if (ret < 0)
+                       return errno;
+
+               return 0;
+       }
 }
 
 int td_io_get_file_size(struct thread_data *td, struct fio_file *f)
@@ -599,15 +618,15 @@ int fio_show_ioengine_help(const char *engine)
 {
        struct flist_head *entry;
        struct thread_data td;
+       struct ioengine_ops *io_ops;
        char *sep;
        int ret = 1;
 
        if (!engine || !*engine) {
                log_info("Available IO engines:\n");
                flist_for_each(entry, &engine_list) {
-                       td.io_ops = flist_entry(entry, struct ioengine_ops,
-                                               list);
-                       log_info("\t%s\n", td.io_ops->name);
+                       io_ops = flist_entry(entry, struct ioengine_ops, list);
+                       log_info("\t%s\n", io_ops->name);
                }
                return 0;
        }
@@ -619,16 +638,16 @@ int fio_show_ioengine_help(const char *engine)
 
        memset(&td, 0, sizeof(td));
 
-       td.io_ops = load_ioengine(&td, engine);
-       if (!td.io_ops) {
+       io_ops = load_ioengine(&td, engine);
+       if (!io_ops) {
                log_info("IO engine %s not found\n", engine);
                return 1;
        }
 
-       if (td.io_ops->options)
-               ret = show_cmd_help(td.io_ops->options, sep);
+       if (io_ops->options)
+               ret = show_cmd_help(io_ops->options, sep);
        else
-               log_info("IO engine %s has no options\n", td.io_ops->name);
+               log_info("IO engine %s has no options\n", io_ops->name);
 
        free_ioengine(&td);