X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=ioengines.c;h=7f0a5c4520bab954d1e8eaa4df04ee115f8290e1;hb=daaa166fb4d4869882885094d8b8ad44f6d159ce;hp=7840d2a86abb1447a3b5daeb7135ff225b275593;hpb=d6aed795f2e3e403828abf60874dd2d6e8342a1b;p=fio.git

diff --git a/ioengines.c b/ioengines.c
index 7840d2a8..7f0a5c45 100644
--- a/ioengines.c
+++ b/ioengines.c
@@ -17,6 +17,7 @@
 #include <assert.h>
 
 #include "fio.h"
+#include "diskutil.h"
 
 static FLIST_HEAD(engine_list);
 
@@ -237,27 +238,39 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
 					sizeof(struct timeval));
 	}
 
-	if (io_u->ddir != DDIR_SYNC)
+	if (!ddir_sync(io_u->ddir))
 		td->io_issues[io_u->ddir]++;
 
 	ret = td->io_ops->queue(td, io_u);
 
 	unlock_file(td, io_u->file);
 
+	/*
+	 * Add warning for O_DIRECT so that users have an easier time
+	 * spotting potentially bad alignment. If this triggers for the first
+	 * IO, then it's likely an alignment problem or because the host fs
+	 * does not support O_DIRECT
+	 */
+	if (io_u->error == EINVAL && td->io_issues[io_u->ddir] == 1 &&
+	    td->o.odirect) {
+		log_info("fio: first direct IO errored. File system may not "
+			 "support direct IO, or iomem_align= is bad.\n");
+	}
+
 	if (!td->io_ops->commit) {
 		io_u_mark_submit(td, 1);
 		io_u_mark_complete(td, 1);
 	}
 
 	if (ret == FIO_Q_COMPLETED) {
-		if (io_u->ddir != DDIR_SYNC) {
+		if (!ddir_sync(io_u->ddir)) {
 			io_u_mark_depth(td, 1);
 			td->ts.total_io_u[io_u->ddir]++;
 		}
 	} else if (ret == FIO_Q_QUEUED) {
 		int r;
 
-		if (io_u->ddir != DDIR_SYNC) {
+		if (!ddir_sync(io_u->ddir)) {
 			td->io_u_queued++;
 			td->ts.total_io_u[io_u->ddir]++;
 		}
@@ -317,6 +330,9 @@ int td_io_commit(struct thread_data *td)
 
 int td_io_open_file(struct thread_data *td, struct fio_file *f)
 {
+	assert(!fio_file_open(f));
+	assert(f->fd == -1);
+
 	if (td->io_ops->open_file(td, f)) {
 		if (td->error == EINVAL && td->o.odirect)
 			log_err("fio: destination does not support O_DIRECT\n");
@@ -326,6 +342,8 @@ int td_io_open_file(struct thread_data *td, struct fio_file *f)
 							td->o.nr_files);
 		}
 
+		assert(f->fd == -1);
+		assert(!fio_file_open(f));
 		return 1;
 	}
 
@@ -365,9 +383,6 @@ int td_io_open_file(struct thread_data *td, struct fio_file *f)
 		}
 	}
 
-	if (f->file_map)
-		memset(f->file_map, 0, f->num_maps * sizeof(int));
-
 #ifdef FIO_OS_DIRECTIO
 	/*
 	 * Some OS's have a distinct call to mark the file non-buffered,