t/io_uring: align buffers correctly on non-4k page sizes

[fio.git] / t / io_uring.c

diff --git a/t/io_uring.c b/t/io_uring.c
index 400216475e6aa1f6d7be609ea6f2a25238b38429..f513d7dcd8aa81cdb4c46bf841889b8a6846d583 100644 (file)
--- a/t/io_uring.c
+++ b/t/io_uring.c
@@ -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;
@@ -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 < 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;
                        }