From dd30f316f25ac70dba8891406d2a107dbcfcd75a Mon Sep 17 00:00:00 2001
From: Frank Zago <fzago@cray.com>
Date: Thu, 15 Oct 2015 12:27:21 -0400
Subject: [PATCH] LU-7311 osd: quotactl_ops has changed in kernel 3.19

The kernel 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid
and qc_dqblk. Added in kernel commit 14bf61ffe.

Signed-off-by: frank zago <fzago@cray.com>
Change-Id: Ie9943d2537c137ececa03040151059e34850f5de
Reviewed-on: http://review.whamcloud.com/16893
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Yang Sheng <yang.sheng@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---
 lustre/autoconf/lustre-core.m4    | 25 +++++++++++++++++++++++++
 lustre/osd-ldiskfs/osd_internal.h |  4 +++-
 lustre/osd-ldiskfs/osd_quota.c    |  9 +++++++--
 3 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 365727e..41048be 100644
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1851,6 +1851,30 @@ ki_nbytes, [
 ]) # LC_KIOCB_HAS_NBYTES
 
 #
+# LC_HAVE_DQUOT_QC_DQBLK
+#
+# 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
+# Added in commit 14bf61ffe
+#
+AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk],
+qc_dqblk, [
+	#include <linux/fs.h>
+	#include <linux/quota.h>
+],[
+	((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
+],[
+	AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
+		[quotactl_ops.set_dqblk takes struct qc_dqblk])
+	AC_DEFINE(HAVE_DQUOT_KQID, 1,
+		[quotactl_ops.set_dqblk takes struct kqid])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LC_HAVE_DQUOT_QC_DQBLK
+
+#
 # LC_BACKING_DEV_INFO_REMOVAL
 #
 # 3.20 kernel removed backing_dev_info from address_space
@@ -2291,6 +2315,7 @@ AC_DEFUN([LC_PROG_LINUX], [
 
 	# 3.19
 	LC_KIOCB_HAS_NBYTES
+	LC_HAVE_DQUOT_QC_DQBLK
 
 	# 3.20
 	LC_BACKING_DEV_INFO_REMOVAL
diff --git a/lustre/osd-ldiskfs/osd_internal.h b/lustre/osd-ldiskfs/osd_internal.h
index 1280721..d44e389 100644
--- a/lustre/osd-ldiskfs/osd_internal.h
+++ b/lustre/osd-ldiskfs/osd_internal.h
@@ -607,7 +607,9 @@ struct osd_thread_info {
 
 	/* used by quota code */
 	union {
-#ifdef HAVE_DQUOT_FS_DISK_QUOTA
+#if defined(HAVE_DQUOT_QC_DQBLK)
+		struct qc_dqblk		oti_qdq;
+#elif defined(HAVE_DQUOT_FS_DISK_QUOTA)
 		struct fs_disk_quota    oti_fdq;
 #else
 		struct if_dqblk		oti_dqblk;
diff --git a/lustre/osd-ldiskfs/osd_quota.c b/lustre/osd-ldiskfs/osd_quota.c
index 57b7733..e426b43 100644
--- a/lustre/osd-ldiskfs/osd_quota.c
+++ b/lustre/osd-ldiskfs/osd_quota.c
@@ -102,7 +102,9 @@ static int osd_acct_index_lookup(const struct lu_env *env,
 				 const struct dt_key *dtkey)
 {
 	struct osd_thread_info	*info = osd_oti_get(env);
-#ifdef HAVE_DQUOT_FS_DISK_QUOTA
+#if defined(HAVE_DQUOT_QC_DQBLK)
+	struct qc_dqblk		*dqblk = &info->oti_qdq;
+#elif defined(HAVE_DQUOT_FS_DISK_QUOTA)
 	struct fs_disk_quota	*dqblk = &info->oti_fdq;
 #else
 	struct if_dqblk		*dqblk = &info->oti_dqblk;
@@ -126,7 +128,10 @@ static int osd_acct_index_lookup(const struct lu_env *env,
 #endif
 	if (rc)
 		RETURN(rc);
-#ifdef HAVE_DQUOT_FS_DISK_QUOTA
+#if defined(HAVE_DQUOT_QC_DQBLK)
+	rec->bspace = dqblk->d_space;
+	rec->ispace = dqblk->d_ino_count;
+#elif defined(HAVE_DQUOT_FS_DISK_QUOTA)
 	rec->bspace = dqblk->d_bcount;
 	rec->ispace = dqblk->d_icount;
 #else
-- 
1.8.3.1