From 66281117075279667d06ba78709be47e0ac75b2c Mon Sep 17 00:00:00 2001
From: Laurent Vivier <lvivier@redhat.com>
Date: Tue, 4 Jul 2017 16:32:56 +0200
Subject: [PATCH 1/4] spapr: Consolidate HPT freeing code into a routine

RH-Author: Laurent Vivier <lvivier@redhat.com>
Message-id: <20170704163258.9846-2-lvivier@redhat.com>
Patchwork-id: 75706
O-Subject: [Pegas-1.0 qemu-kvm PATCH 1/3] spapr: Consolidate HPT freeing code into a routine
Bugzilla: 1456287
RH-Acked-by: David Gibson <dgibson@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>

From: Bharata B Rao <bharata@linux.vnet.ibm.com>

Consolidate the code that frees HPT into a separate routine
spapr_free_hpt() as the same chunk of code is called from two places.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
(cherry picked from commit 06ec79e865a4a496e762a83126d00d0ed39205f5)
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 hw/ppc/spapr.c         | 13 +++++++++----
 hw/ppc/spapr_hcall.c   |  5 +----
 include/hw/ppc/spapr.h |  1 +
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index aadb562..2bee3d9 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1243,16 +1243,21 @@ static int spapr_hpt_shift_for_ramsize(uint64_t ramsize)
     return shift;
 }
 
+void spapr_free_hpt(sPAPRMachineState *spapr)
+{
+    g_free(spapr->htab);
+    spapr->htab = NULL;
+    spapr->htab_shift = 0;
+    close_htab_fd(spapr);
+}
+
 static void spapr_reallocate_hpt(sPAPRMachineState *spapr, int shift,
                                  Error **errp)
 {
     long rc;
 
     /* Clean up any HPT info from a previous boot */
-    g_free(spapr->htab);
-    spapr->htab = NULL;
-    spapr->htab_shift = 0;
-    close_htab_fd(spapr);
+    spapr_free_hpt(spapr);
 
     rc = kvmppc_reset_htab(shift);
     if (rc < 0) {
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 2735fe9..79f3e0c 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -913,10 +913,7 @@ static void spapr_check_setup_free_hpt(sPAPRMachineState *spapr,
         /* We assume RADIX, so this catches all the "Do Nothing" cases */
     } else if (!(patbe_old & PATBE1_GR)) {
         /* HASH->RADIX : Free HPT */
-        g_free(spapr->htab);
-        spapr->htab = NULL;
-        spapr->htab_shift = 0;
-        close_htab_fd(spapr);
+        spapr_free_hpt(spapr);
     } else if (!(patbe_new & PATBE1_GR)) {
         /* RADIX->HASH || NOTHING->HASH : Allocate HPT */
         spapr_setup_hpt_and_vrma(spapr);
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index a6ef8cb..901f27b 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -599,6 +599,7 @@ int spapr_h_cas_compose_response(sPAPRMachineState *sm,
                                  sPAPROptionVector *ov5_updates);
 void close_htab_fd(sPAPRMachineState *spapr);
 void spapr_setup_hpt_and_vrma(sPAPRMachineState *spapr);
+void spapr_free_hpt(sPAPRMachineState *spapr);
 sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn);
 void spapr_tce_table_enable(sPAPRTCETable *tcet,
                             uint32_t page_shift, uint64_t bus_offset,
-- 
1.8.3.1