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[Qemu-devel] [PATCH 21/31] ram: Everything was init to zero, so use mems
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH 21/31] ram: Everything was init to zero, so use memset |
Date: |
Wed, 15 Mar 2017 14:50:11 +0100 |
And then init only things that are not zero by default.
Signed-off-by: Juan Quintela <address@hidden>
---
migration/ram.c | 25 +++----------------------
1 file changed, 3 insertions(+), 22 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 606e836..7f56b5f 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -588,15 +588,6 @@ static void migration_bitmap_sync_range(RAMState *rs,
ram_addr_t start,
cpu_physical_memory_sync_dirty_bitmap(bitmap, start, length);
}
-static void migration_bitmap_sync_init(RAMState *rs)
-{
- rs->start_time = 0;
- rs->bytes_xfer_prev = 0;
- rs->num_dirty_pages_period = 0;
- rs->xbzrle_cache_miss_prev = 0;
- rs->iterations_prev = 0;
-}
-
/* Returns a summary bitmap of the page sizes of all RAMBlocks;
* for VMs with just normal pages this is equivalent to the
* host page size. If it's got some huge pages then it's the OR
@@ -1915,21 +1906,11 @@ err:
return ret;
}
-static int ram_save_init_globals(RAMState *rs)
+static int ram_state_init(RAMState *rs)
{
int64_t ram_bitmap_pages; /* Size of bitmap in pages, including gaps */
- rs->dirty_rate_high_cnt = 0;
- rs->bitmap_sync_count = 0;
- rs->zero_pages = 0;
- rs->norm_pages = 0;
- rs->iterations = 0;
- rs->xbzrle_bytes = 0;
- rs->xbzrle_pages = 0;
- rs->xbzrle_cache_miss = 0;
- rs->xbzrle_cache_miss_rate = 0;
- rs->xbzrle_overflows = 0;
- migration_bitmap_sync_init(rs);
+ memset(rs, 0, sizeof(*rs));
qemu_mutex_init(&migration_bitmap_mutex);
if (migrate_use_xbzrle()) {
@@ -2010,7 +1991,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
/* migration has already setup the bitmap, reuse it. */
if (!migration_in_colo_state()) {
- if (ram_save_init_globals(rs) < 0) {
+ if (ram_state_init(rs) < 0) {
return -1;
}
}
--
2.9.3
- [Qemu-devel] [PATCH 13/31] ram: Remove norm_mig_bytes_transferred, (continued)
- [Qemu-devel] [PATCH 13/31] ram: Remove norm_mig_bytes_transferred, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 14/31] ram: Move iterations into RAMState, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 11/31] ram: Remove unused pages_skiped variable, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 15/31] ram: Move xbzrle_bytes into RAMState, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 19/31] ram: move xbzrle_overflows into RAMState, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 21/31] ram: Everything was init to zero, so use memset,
Juan Quintela <=
- [Qemu-devel] [PATCH 18/31] ram: move xbzrle_cache_miss_rate into RAMState, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 17/31] ram: Move xbzrle_cache_miss into RAMState, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 16/31] ram: Move xbzrle_pages into RAMState, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 22/31] ram: move migration_bitmap_mutex into RAMState, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 20/31] ram: move migration_dirty_pages to RAMState, Juan Quintela, 2017/03/15
- [Qemu-devel] [PATCH 23/31] ram: Move migration_bitmap_rcu into RAMState, Juan Quintela, 2017/03/15