[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PULL 13/21] migration: provide ram_state_init()
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PULL 13/21] migration: provide ram_state_init() |
Date: |
Mon, 23 Oct 2017 18:07:52 +0200 |
From: Peter Xu <address@hidden>
The old ram_state_init() is not really initializing the RAMState only,
but including lots of other stuff that is RAM-related. Renaming it to
ram_init_all(). Instead, provide a real ram_state_init().
Signed-off-by: Peter Xu <address@hidden>
Reviewed-by: Juan Quintela <address@hidden>
Signed-off-by: Juan Quintela <address@hidden>
---
migration/ram.c | 36 ++++++++++++++++++++++++++----------
1 file changed, 26 insertions(+), 10 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 47501460c8..13f4b3d101 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -2019,13 +2019,36 @@ err:
static int ram_state_init(RAMState **rsp)
{
- *rsp = g_new0(RAMState, 1);
- Error *local_err = NULL;
+ *rsp = g_try_new0(RAMState, 1);
+
+ if (!*rsp) {
+ error_report("%s: Init ramstate fail", __func__);
+ return -1;
+ }
qemu_mutex_init(&(*rsp)->bitmap_mutex);
qemu_mutex_init(&(*rsp)->src_page_req_mutex);
QSIMPLEQ_INIT(&(*rsp)->src_page_requests);
+ /*
+ * Count the total number of pages used by ram blocks not including any
+ * gaps due to alignment or unplugs.
+ */
+ (*rsp)->migration_dirty_pages = ram_bytes_total() >> TARGET_PAGE_BITS;
+
+ ram_state_reset(*rsp);
+
+ return 0;
+}
+
+static int ram_init_all(RAMState **rsp)
+{
+ Error *local_err = NULL;
+
+ if (ram_state_init(rsp)) {
+ return -1;
+ }
+
if (migrate_use_xbzrle()) {
XBZRLE_cache_lock();
XBZRLE.zero_target_page = g_malloc0(TARGET_PAGE_SIZE);
@@ -2065,7 +2088,6 @@ static int ram_state_init(RAMState **rsp)
qemu_mutex_lock_ramlist();
rcu_read_lock();
- ram_state_reset(*rsp);
/* Skip setting bitmap if there is no RAM */
if (ram_bytes_total()) {
@@ -2083,12 +2105,6 @@ static int ram_state_init(RAMState **rsp)
}
}
- /*
- * Count the total number of pages used by ram blocks not including any
- * gaps due to alignment or unplugs.
- */
- (*rsp)->migration_dirty_pages = ram_bytes_total() >> TARGET_PAGE_BITS;
-
memory_global_dirty_log_start();
migration_bitmap_sync(*rsp);
qemu_mutex_unlock_ramlist();
@@ -2120,7 +2136,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
/* migration has already setup the bitmap, reuse it. */
if (!migration_in_colo_state()) {
- if (ram_state_init(rsp) != 0) {
+ if (ram_init_all(rsp) != 0) {
return -1;
}
}
--
2.13.6
- [Qemu-devel] [PULL 04/21] migration: Move xbzrle cache resize error handling to xbzrle_cache_resize, (continued)
- [Qemu-devel] [PULL 04/21] migration: Move xbzrle cache resize error handling to xbzrle_cache_resize, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 02/21] migratiom: Remove max_item_age parameter, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 05/21] migration: Make cache_init() take an error parameter, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 06/21] migration: Add 'pause-before-switchover' capability, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 08/21] migration: Wait for semaphore before completing migration, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 09/21] migration: migrate-continue, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 10/21] migrate: HMP migate_continue, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 07/21] migration: Add 'pre-switchover' and 'device' statuses, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 11/21] migration: allow cancel to unpause, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 12/21] migration: pause-before-switchover for postcopy, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 13/21] migration: provide ram_state_init(),
Juan Quintela <=
- [Qemu-devel] [PULL 14/21] migration: provide ram_state_cleanup, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 15/21] migration: clean up xbzrle cache init/destroy, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 16/21] migration: new ram_init_bitmaps(), Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 17/21] migration: postcopy_place_page factoring out, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 20/21] qapi: Fix grammar in x-multifd-page-count descriptions, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 18/21] migration: introduce qemu_ufd_copy_ioctl helper, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 21/21] migration: Improve migration thread error handling, Juan Quintela, 2017/10/23
- [Qemu-devel] [PULL 19/21] migration: add bitmap for received page, Juan Quintela, 2017/10/23
- Re: [Qemu-devel] [PULL 00/21] Migration pull request, Peter Maydell, 2017/10/25