LU-13835 llite: reuse same cl_dio_aio for one IO

[fs/lustre-release.git] / lustre / llite / rw26.c

diff --git a/lustre/llite/rw26.c b/lustre/llite/rw26.c
index 8fd227e..94b2436 100644 (file)
--- a/lustre/llite/rw26.c
+++ b/lustre/llite/rw26.c
@@ -346,6 +346,11 @@ ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io, size_t size,
                int iot = rw == READ ? CRT_READ : CRT_WRITE;
 
                atomic_add(io_pages, &anchor->csi_sync_nr);
+               /*
+                * Avoid out-of-order execution of adding inflight
+                * modifications count and io submit.
+                */
+               smp_mb();
                rc = cl_io_submit_rw(env, io, iot, queue);
                if (rc == 0) {
                        cl_page_list_splice(&queue->c2_qout,