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| author | Umesh Deshpande <udeshpan@redhat.com> | 2011-08-18 11:41:17 -0700 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2012-12-20 23:08:47 +0100 |
| commit | f798b07f517143df3a1e38bccc3f72ade2f080dc (patch) | |
| tree | 0ea1d2ebed54e652c12c302711a86f2db72a7d30 /arch_init.c | |
| parent | abb26d63e7e4492d306c13b7e0e799d4c11a067c (diff) | |
| download | qemu-f798b07f517143df3a1e38bccc3f72ade2f080dc.zip | |
add a version number to ram_list
This will be used to detect if last_block might have become invalid
across different calls to ram_save_live.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Umesh Deshpande <udeshpan@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Diffstat (limited to 'arch_init.c')
| -rw-r--r-- | arch_init.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch_init.c b/arch_init.c index 5c8df3af41..1f737dc1eb 100644 --- a/arch_init.c +++ b/arch_init.c @@ -336,6 +336,7 @@ static RAMBlock *last_block; static ram_addr_t last_offset; static unsigned long *migration_bitmap; static uint64_t migration_dirty_pages; +static uint32_t last_version; static inline bool migration_bitmap_test_and_reset_dirty(MemoryRegion *mr, ram_addr_t offset) @@ -406,7 +407,6 @@ static void migration_bitmap_sync(void) } } - /* * ram_save_block: Writes a page of memory to the stream f * @@ -533,6 +533,7 @@ static void reset_ram_globals(void) { last_block = NULL; last_offset = 0; + last_version = ram_list.version; } #define MAX_WAIT 50 /* ms, half buffered_file limit */ @@ -587,6 +588,10 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) uint64_t expected_downtime; MigrationState *s = migrate_get_current(); + if (ram_list.version != last_version) { + reset_ram_globals(); + } + bytes_transferred_last = bytes_transferred; bwidth = qemu_get_clock_ns(rt_clock); |