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[Qemu-devel] [PATCH v5 12/17] migration: Send the fd number which we are
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH v5 12/17] migration: Send the fd number which we are going to use for this page |
Date: |
Mon, 17 Jul 2017 15:42:33 +0200 |
We are still sending the page through the main channel, that would
change later in the series
Signed-off-by: Juan Quintela <address@hidden>
---
migration/ram.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 90e1bcb..ac0742f 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -568,7 +568,7 @@ static int multifd_send_page(uint8_t *address)
qemu_mutex_unlock(&p->mutex);
qemu_sem_post(&p->sem);
- return 0;
+ return i;
}
struct MultiFDRecvParams {
@@ -1143,6 +1143,7 @@ static int ram_multifd_page(RAMState *rs,
PageSearchStatus *pss,
bool last_stage)
{
int pages;
+ uint16_t fd_num;
uint8_t *p;
RAMBlock *block = pss->block;
ram_addr_t offset = pss->page << TARGET_PAGE_BITS;
@@ -1154,8 +1155,10 @@ static int ram_multifd_page(RAMState *rs,
PageSearchStatus *pss,
ram_counters.transferred +=
save_page_header(rs, rs->f, block,
offset | RAM_SAVE_FLAG_MULTIFD_PAGE);
+ fd_num = multifd_send_page(p);
+ qemu_put_be16(rs->f, fd_num);
+ ram_counters.transferred += 2; /* size of fd_num */
qemu_put_buffer(rs->f, p, TARGET_PAGE_SIZE);
- multifd_send_page(p);
ram_counters.transferred += TARGET_PAGE_SIZE;
pages = 1;
ram_counters.normal++;
@@ -2905,6 +2908,7 @@ static int ram_load(QEMUFile *f, void *opaque, int
version_id)
while (!postcopy_running && !ret && !(flags & RAM_SAVE_FLAG_EOS)) {
ram_addr_t addr, total_ram_bytes;
void *host = NULL;
+ uint16_t fd_num;
uint8_t ch;
addr = qemu_get_be64(f);
@@ -3015,6 +3019,11 @@ static int ram_load(QEMUFile *f, void *opaque, int
version_id)
break;
case RAM_SAVE_FLAG_MULTIFD_PAGE:
+ fd_num = qemu_get_be16(f);
+ if (fd_num != 0) {
+ /* this is yet an unused variable, changed later */
+ fd_num = fd_num;
+ }
qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
break;
--
2.9.4
- Re: [Qemu-devel] [PATCH v5 09/17] migration: Start of multiple fd work, (continued)
- [Qemu-devel] [PATCH v5 10/17] migration: Create ram_multifd_page, Juan Quintela, 2017/07/17
- [Qemu-devel] [PATCH v5 11/17] migration: Really use multiple pages at a time, Juan Quintela, 2017/07/17
- [Qemu-devel] [PATCH v5 12/17] migration: Send the fd number which we are going to use for this page,
Juan Quintela <=
- [Qemu-devel] [PATCH v5 13/17] migration: Create thread infrastructure for multifd recv side, Juan Quintela, 2017/07/17
- [Qemu-devel] [PATCH v5 14/17] migration: Delay the start of reception on main channel, Juan Quintela, 2017/07/17
- [Qemu-devel] [PATCH v5 15/17] migration: Test new fd infrastructure, Juan Quintela, 2017/07/17
- [Qemu-devel] [PATCH v5 16/17] migration: Transfer pages over new channels, Juan Quintela, 2017/07/17