From b907a8622e39eecfc4b243f3be3ad26559d1faee Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Mon, 27 Jun 2016 21:01:09 -0300
Subject: Linux-libre 4.6.3-gnu

---
 fs/aufs/dinfo.c | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)

(limited to 'fs/aufs/dinfo.c')

diff --git a/fs/aufs/dinfo.c b/fs/aufs/dinfo.c
index b2eb8c2de..43b550973 100644
--- a/fs/aufs/dinfo.c
+++ b/fs/aufs/dinfo.c
@@ -56,7 +56,7 @@ void au_di_free(struct au_dinfo *dinfo)
 	bindex = dinfo->di_btop;
 	if (bindex >= 0) {
 		bbot = dinfo->di_bbot;
-		p = dinfo->di_hdentry + bindex;
+		p = au_hdentry(dinfo, bindex);
 		while (bindex++ <= bbot)
 			au_hdput(p++);
 	}
@@ -308,7 +308,7 @@ struct dentry *au_h_dptr(struct dentry *dentry, aufs_bindex_t bindex)
 	if (au_dbtop(dentry) < 0 || bindex < au_dbtop(dentry))
 		return NULL;
 	AuDebugOn(bindex < 0);
-	d = au_di(dentry)->di_hdentry[0 + bindex].hd_dentry;
+	d = au_hdentry(au_di(dentry), bindex)->hd_dentry;
 	AuDebugOn(d && au_dcount(d) <= 0);
 	return d;
 }
@@ -397,11 +397,14 @@ aufs_bindex_t au_dbtaildir(struct dentry *dentry)
 void au_set_h_dptr(struct dentry *dentry, aufs_bindex_t bindex,
 		   struct dentry *h_dentry)
 {
-	struct au_hdentry *hd = au_di(dentry)->di_hdentry + bindex;
+	struct au_dinfo *dinfo;
+	struct au_hdentry *hd;
 	struct au_branch *br;
 
 	DiMustWriteLock(dentry);
 
+	dinfo = au_di(dentry);
+	hd = au_hdentry(dinfo, bindex);
 	au_hdput(hd);
 	hd->hd_dentry = h_dentry;
 	if (h_dentry) {
@@ -451,6 +454,7 @@ void au_update_dbrange(struct dentry *dentry, int do_put_zero)
 	struct au_dinfo *dinfo;
 	struct dentry *h_d;
 	struct au_hdentry *hdp;
+	aufs_bindex_t bindex, bbot;
 
 	DiMustWriteLock(dentry);
 
@@ -458,21 +462,21 @@ void au_update_dbrange(struct dentry *dentry, int do_put_zero)
 	if (!dinfo || dinfo->di_btop < 0)
 		return;
 
-	hdp = dinfo->di_hdentry;
 	if (do_put_zero) {
-		aufs_bindex_t bindex, bbot;
-
 		bbot = dinfo->di_bbot;
-		for (bindex = dinfo->di_btop; bindex <= bbot; bindex++) {
-			h_d = hdp[0 + bindex].hd_dentry;
+		bindex = dinfo->di_btop;
+		hdp = au_hdentry(dinfo, bindex);
+		for (; bindex <= bbot; bindex++, hdp++) {
+			h_d = hdp->hd_dentry;
 			if (h_d && d_is_negative(h_d))
 				au_set_h_dptr(dentry, bindex, NULL);
 		}
 	}
 
-	dinfo->di_btop = -1;
-	while (++dinfo->di_btop <= dinfo->di_bbot)
-		if (hdp[0 + dinfo->di_btop].hd_dentry)
+	dinfo->di_btop = 0;
+	hdp = au_hdentry(dinfo, dinfo->di_btop);
+	for (; dinfo->di_btop <= dinfo->di_bbot; dinfo->di_btop++, hdp++)
+		if (hdp->hd_dentry)
 			break;
 	if (dinfo->di_btop > dinfo->di_bbot) {
 		dinfo->di_btop = -1;
@@ -480,9 +484,9 @@ void au_update_dbrange(struct dentry *dentry, int do_put_zero)
 		return;
 	}
 
-	dinfo->di_bbot++;
-	while (0 <= --dinfo->di_bbot)
-		if (hdp[0 + dinfo->di_bbot].hd_dentry)
+	hdp = au_hdentry(dinfo, dinfo->di_bbot);
+	for (; dinfo->di_bbot >= 0; dinfo->di_bbot--, hdp--)
+		if (hdp->hd_dentry)
 			break;
 	AuDebugOn(dinfo->di_btop > dinfo->di_bbot || dinfo->di_bbot < 0);
 }
-- 
cgit v1.2.3-54-g00ecf