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[Qemu-devel] [PULL 16/50] memory: optimize memory_global_dirty_log_sync
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 16/50] memory: optimize memory_global_dirty_log_sync |
Date: |
Mon, 24 Oct 2016 15:47:01 +0200 |
Only return a nonzero dirty_log_mask for RAM/ROM memory regions.
Signed-off-by: Paolo Bonzini <address@hidden>
---
memory.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/memory.c b/memory.c
index 1507878..c857722 100644
--- a/memory.c
+++ b/memory.c
@@ -1499,7 +1499,7 @@ bool memory_region_is_skip_dump(MemoryRegion *mr)
uint8_t memory_region_get_dirty_log_mask(MemoryRegion *mr)
{
uint8_t mask = mr->dirty_log_mask;
- if (global_dirty_log) {
+ if (global_dirty_log && mr->ram_block) {
mask |= (1 << DIRTY_MEMORY_MIGRATION);
}
return mask;
@@ -2171,8 +2171,10 @@ void memory_global_dirty_log_sync(void)
as = listener->address_space;
view = address_space_get_flatview(as);
FOR_EACH_FLAT_RANGE(fr, view) {
- MemoryRegionSection mrs = section_from_flat_range(fr, as);
- listener->log_sync(listener, &mrs);
+ if (fr->dirty_log_mask) {
+ MemoryRegionSection mrs = section_from_flat_range(fr, as);
+ listener->log_sync(listener, &mrs);
+ }
}
flatview_unref(view);
}
--
1.8.3.1
- [Qemu-devel] [PULL 06/50] atomic: introduce smp_mb_acquire and smp_mb_release, (continued)
- [Qemu-devel] [PULL 06/50] atomic: introduce smp_mb_acquire and smp_mb_release, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 12/50] target-i386: fix 32-bit addresses in LEA, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 11/50] test-i386: fix bitrot for 64-bit, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 09/50] atomic: base mb_read/mb_set on load-acquire and store-release, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 10/50] qht-bench: relax test_start/stop atomic accesses, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 13/50] tcg: try sti when moving a constant into a dead memory temp, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 14/50] memory: eliminate global MemoryListeners, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 17/50] memory: optimize memory_region_sync_dirty_bitmap, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 15/50] memory: add a per-AddressSpace list of listeners, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 20/50] rng: remove unused included header, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 16/50] memory: optimize memory_global_dirty_log_sync,
Paolo Bonzini <=
- [Qemu-devel] [PULL 19/50] char.h: misc doc fix, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 21/50] char: remove use-after-free on win-stdio, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 18/50] char: serial: check divider value against baud base, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 22/50] ringbuf: fix chr_write return value, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 23/50] sun4uv: fix serial initialization regression, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 28/50] char: introduce CharBackend, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 24/50] malta: replace chr init by CHR_EVENT_OPENED handler, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 25/50] char: remove init callback, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 26/50] xilinx: fix buffer overflow on realize, Paolo Bonzini, 2016/10/24
- [Qemu-devel] [PULL 27/50] mux: split mux_chr_update_read_handler(), Paolo Bonzini, 2016/10/24