Recent changes (master)

[Jens Axboe <axboe@kernel.dk>]

The following changes since commit 6a16e9e9531a5f746c4e2fe43873de1db434b4fc:

  diskutil: include limits.h for PATH_MAX (2022-02-15 17:17:30 -0700)

are available in the Git repository at:

  git://git.kernel.dk/fio.git master

for you to fetch changes up to c99c81adb3510a8dc34d47fd40b19ef657e32192:

  Correct F_FULLSYNC -> F_FULLFSYNC (2022-02-17 12:53:59 -0700)

----------------------------------------------------------------
Jens Axboe (4):
      t/io_uring: allow non-power-of-2 queue depths
      t/io_uring: align buffers correctly on non-4k page sizes
      Use fcntl(..., F_FULLSYNC) if available
      Correct F_FULLSYNC -> F_FULLFSYNC

 configure    | 22 ++++++++++++++++++++++
 io_u.c       |  4 ++++
 t/io_uring.c | 15 ++++++++++-----
 3 files changed, 36 insertions(+), 5 deletions(-)

---

Diff of recent changes:

diff --git a/configure b/configure
index 0efde7d6..6160d84d 100755
--- a/configure
+++ b/configure
@@ -645,6 +645,25 @@ if compile_prog "" "-lz" "zlib" ; then
 fi
 print_config "zlib" "$zlib"
 
+##########################################
+# fcntl(F_FULLFSYNC) support
+if test "$fcntl_sync" != "yes" ; then
+  fcntl_sync="no"
+fi
+cat > $TMPC << EOF
+#include <unistd.h>
+#include <fcntl.h>
+
+int main(int argc, char **argv)
+{
+  return fcntl(0, F_FULLFSYNC);
+}
+EOF
+if compile_prog "" "" "fcntl(F_FULLFSYNC)" ; then
+    fcntl_sync="yes"
+fi
+print_config "fcntl(F_FULLFSYNC)" "$fcntl_sync"
+
 ##########################################
 # linux-aio probe
 if test "$libaio" != "yes" ; then
@@ -3174,6 +3193,9 @@ fi
 if test "$pdb" = yes; then
   output_sym "CONFIG_PDB"
 fi
+if test "$fcntl_sync" = "yes" ; then
+  output_sym "CONFIG_FCNTL_SYNC"
+fi
 
 print_config "Lib-based ioengines dynamic" "$dynamic_engines"
 cat > $TMPC << EOF
diff --git a/io_u.c b/io_u.c
index 059637e5..806ceb77 100644
--- a/io_u.c
+++ b/io_u.c
@@ -2297,7 +2297,11 @@ int do_io_u_sync(const struct thread_data *td, struct io_u *io_u)
 	int ret;
 
 	if (io_u->ddir == DDIR_SYNC) {
+#ifdef CONFIG_FCNTL_SYNC
+		ret = fcntl(io_u->file->fd, F_FULLFSYNC);
+#else
 		ret = fsync(io_u->file->fd);
+#endif
 	} else if (io_u->ddir == DDIR_DATASYNC) {
 #ifdef CONFIG_FDATASYNC
 		ret = fdatasync(io_u->file->fd);
diff --git a/t/io_uring.c b/t/io_uring.c
index 4520de43..f513d7dc 100644
--- a/t/io_uring.c
+++ b/t/io_uring.c
@@ -364,7 +364,7 @@ static int io_uring_register_buffers(struct submitter *s)
 		return 0;
 
 	return syscall(__NR_io_uring_register, s->ring_fd,
-			IORING_REGISTER_BUFFERS, s->iovecs, depth);
+			IORING_REGISTER_BUFFERS, s->iovecs, roundup_pow2(depth));
 }
 
 static int io_uring_register_files(struct submitter *s)
@@ -962,7 +962,7 @@ static int setup_aio(struct submitter *s)
 		fixedbufs = register_files = 0;
 	}
 
-	return io_queue_init(depth, &s->aio_ctx);
+	return io_queue_init(roundup_pow2(depth), &s->aio_ctx);
 #else
 	fprintf(stderr, "Legacy AIO not available on this system/build\n");
 	errno = EINVAL;
@@ -1156,6 +1156,7 @@ int main(int argc, char *argv[])
 	struct submitter *s;
 	unsigned long done, calls, reap;
 	int err, i, j, flags, fd, opt, threads_per_f, threads_rem = 0, nfiles;
+	long page_size;
 	struct file f;
 	char *fdepths;
 	void *ret;
@@ -1249,7 +1250,7 @@ int main(int argc, char *argv[])
 		dma_map = 0;
 
 	submitter = calloc(nthreads, sizeof(*submitter) +
-				depth * sizeof(struct iovec));
+				roundup_pow2(depth) * sizeof(struct iovec));
 	for (j = 0; j < nthreads; j++) {
 		s = get_submitter(j);
 		s->index = j;
@@ -1319,12 +1320,16 @@ int main(int argc, char *argv[])
 
 	arm_sig_int();
 
+	page_size = sysconf(_SC_PAGESIZE);
+	if (page_size < 0)
+		page_size = 4096;
+
 	for (j = 0; j < nthreads; j++) {
 		s = get_submitter(j);
-		for (i = 0; i < depth; i++) {
+		for (i = 0; i < roundup_pow2(depth); i++) {
 			void *buf;
 
-			if (posix_memalign(&buf, bs, bs)) {
+			if (posix_memalign(&buf, page_size, bs)) {
 				printf("failed alloc\n");
 				return 1;
 			}