From dd070524bb3c42dd6dbb90519fe292a68a69b636 Mon Sep 17 00:00:00 2001
From: Yang Sheng <yang.sheng@intel.com>
Date: Wed, 14 Mar 2018 17:36:48 +0800
Subject: [PATCH] LU-10565 osd: bi_error, pagevec_init, PAGE_CACHE_SHIFT
 changes

 - bi_error replace to bi_status in bio
 - pagevec_init takes one parameter
 - PAGE_CACHE_SHIFT be removed

Signed-off-by: Yang Sheng <yang.sheng@intel.com>
Change-Id: Ia04124d6d636d132550a63e1f8144c26cab39f8e
Reviewed-on: https://review.whamcloud.com/31644
Tested-by: Jenkins
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---
 lustre/autoconf/lustre-core.m4 | 38 ++++++++++++++++++++++++++++++++++++++
 lustre/include/lustre_idmap.h  |  2 ++
 lustre/osd-ldiskfs/osd_io.c    | 12 ++++++++++--
 3 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 6ef83ff..3836357 100644
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2752,6 +2752,40 @@ super_setup_bdi_name, [
 ]) # LC_SUPER_SETUP_BDI_NAME
 
 #
+# LC_BI_STATUS
+#
+# 4.12 replace bi_error to bi_status
+#
+AC_DEFUN([LC_BI_STATUS], [
+LB_CHECK_COMPILE([if 'bi_status' exist],
+bi_status, [
+	#include <linux/blk_types.h>
+],[
+	((struct bio *)0)->bi_status = 0;
+],[
+	AC_DEFINE(HAVE_BI_STATUS, 1,
+		['bi_status' is available])
+])
+]) # LC_BI_STATUS
+
+#
+# LC_PAGEVEC_INIT_ONE_PARAM
+#
+# 4.14 pagevec_init takes one parameter
+#
+AC_DEFUN([LC_PAGEVEC_INIT_ONE_PARAM], [
+LB_CHECK_COMPILE([if 'pagevec_init' takes one parameter],
+pagevec_init, [
+	#include <linux/pagevec.h>
+],[
+	pagevec_init(NULL);
+],[
+	AC_DEFINE(HAVE_PAGEVEC_INIT_ONE_PARAM, 1,
+		['pagevec_init' takes one parameter])
+])
+]) # LC_PAGEVEC_INIT_ONE_PARAM
+
+#
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
@@ -2977,6 +3011,10 @@ AC_DEFUN([LC_PROG_LINUX], [
 	# 4.12
 	LC_CURRENT_TIME
 	LC_SUPER_SETUP_BDI_NAME
+	LC_BI_STATUS
+
+	# 4.14
+	LC_PAGEVEC_INIT_ONE_PARAM
 
 	#
 	AS_IF([test "x$enable_server" != xno], [
diff --git a/lustre/include/lustre_idmap.h b/lustre/include/lustre_idmap.h
index 363e448..a8c5a21 100644
--- a/lustre/include/lustre_idmap.h
+++ b/lustre/include/lustre_idmap.h
@@ -58,6 +58,8 @@
 
 #endif /* HAVE_GROUP_INFO_GID */
 
+#include <linux/cred.h>
+
 struct lu_ucred;
 
 extern void lustre_groups_from_list(struct group_info *ginfo, gid_t *glist);
diff --git a/lustre/osd-ldiskfs/osd_io.c b/lustre/osd-ldiskfs/osd_io.c
index 1d0303a..914c934 100644
--- a/lustre/osd-ldiskfs/osd_io.c
+++ b/lustre/osd-ldiskfs/osd_io.c
@@ -140,7 +140,11 @@ void osd_fini_iobuf(struct osd_device *d, struct osd_iobuf *iobuf)
 #ifdef HAVE_BIO_ENDIO_USES_ONE_ARG
 static void dio_complete_routine(struct bio *bio)
 {
+# ifdef HAVE_BI_STATUS
+	int error = bio->bi_status;
+# else
 	int error = bio->bi_error;
+# endif
 #else
 static void dio_complete_routine(struct bio *bio, int error)
 {
@@ -493,7 +497,11 @@ static int osd_bufs_put(const struct lu_env *env, struct dt_object *dt,
 	struct pagevec pvec;
 	int i;
 
+#ifdef HAVE_PAGEVEC_INIT_ONE_PARAM
+	pagevec_init(&pvec);
+#else
 	pagevec_init(&pvec, 0);
+#endif
 
 	for (i = 0; i < npages; i++) {
 		if (lnb[i].lnb_page == NULL)
@@ -2008,8 +2016,8 @@ static int osd_ladvise(const struct lu_env *env, struct dt_object *dt,
 		if (end == 0)
 			break;
 		invalidate_mapping_pages(inode->i_mapping,
-					 start >> PAGE_CACHE_SHIFT,
-					 (end - 1) >> PAGE_CACHE_SHIFT);
+					 start >> PAGE_SHIFT,
+					 (end - 1) >> PAGE_SHIFT);
 		break;
 	default:
 		rc = -ENOTSUPP;
-- 
1.8.3.1