[PATCH v2 10/15] migration: Add pss_init()

From: Peter Xu <peterx@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>,
	peterx@redhat.com, "Daniel P . Berrange" <berrange@redhat.com>,
	Juan Quintela <quintela@redhat.com>,
	ani@anisinha.ca,
	Leonardo Bras Soares Passos <lsoaresp@redhat.com>,
	Manish Mishra <manish.mishra@nutanix.com>
Subject: [PATCH v2 10/15] migration: Add pss_init()
Date: Tue, 11 Oct 2022 17:55:54 -0400	[thread overview]
Message-ID: <20221011215559.602584-11-peterx@redhat.com> (raw)
In-Reply-To: <20221011215559.602584-1-peterx@redhat.com>

Helper to init PSS structures.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
---
 migration/ram.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/migration/ram.c b/migration/ram.c
index d81dd3fdac..44967e72b2 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -542,6 +542,14 @@ static bool do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
 static void postcopy_preempt_restore(RAMState *rs, PageSearchStatus *pss,
                                      bool postcopy_requested);
 
+/* NOTE: page is the PFN not real ram_addr_t. */
+static void pss_init(PageSearchStatus *pss, RAMBlock *rb, ram_addr_t page)
+{
+    pss->block = rb;
+    pss->page = page;
+    pss->complete_round = false;
+}
+
 static void *do_data_compress(void *opaque)
 {
     CompressParam *param = opaque;
@@ -2645,9 +2653,7 @@ static int ram_find_and_save_block(RAMState *rs)
         rs->last_page = 0;
     }
 
-    pss.block = rs->last_seen_block;
-    pss.page = rs->last_page;
-    pss.complete_round = false;
+    pss_init(&pss, rs->last_seen_block, rs->last_page);
 
     do {
         again = true;
-- 
2.37.3


