From e35ec09da1d658285a82be94b7c500c658b899fe Mon Sep 17 00:00:00 2001
From: Balazs Gerofi <bgerofi@riken.jp>
Date: Tue, 17 Sep 2019 13:59:45 +0900
Subject: [PATCH] UCX: fix page size for shared memory

Change-Id: I75b0beef8345b391e7619887765ed1a89d74c29b
---
 kernel/syscall.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/kernel/syscall.c b/kernel/syscall.c
index 88a59c8b..3166872f 100644
--- a/kernel/syscall.c
+++ b/kernel/syscall.c
@@ -1805,6 +1805,13 @@ do_mmap(const uintptr_t addr0, const size_t len0, const int prot,
 		off = off0;
 		error = fileobj_create(fd, &memobj, &maxprot,
 				       flags, addr0);
+		if (memobj && memobj->path && !strncmp(memobj->path, "/dev/shm/ucx_posix", 18)) {
+			kprintf("%s: mmap flags: %lx, path: %s, memobj->flags: %lx, "
+					"pgshift: %d, p2align: %d -> FIXING page size\n",
+					__func__, flags, memobj->path, memobj->flags, pgshift, p2align);
+			pgshift = PAGE_SHIFT;
+			p2align = PAGE_P2ALIGN;
+		}
 #ifdef ATTACHED_MIC
 		/*
 		 * XXX: refuse device mapping in attached-mic now: