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| author | Juan Quintela <quintela@redhat.com> | 2013-10-09 12:30:35 +0200 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2014-01-13 14:04:54 +0100 |
| commit | a461e389f489e72cdc770ff887512c2c9109bc43 (patch) | |
| tree | db88e615bc41cb4d487a473de260f2540830f7a7 | |
| parent | 5b9a3a5f77e3458af6c1bb0654ee0f32936a5594 (diff) | |
| download | qemu-a461e389f489e72cdc770ff887512c2c9109bc43.tar.gz qemu-a461e389f489e72cdc770ff887512c2c9109bc43.tar.bz2 qemu-a461e389f489e72cdc770ff887512c2c9109bc43.zip | |
memory: cpu_physical_memory_clear_dirty_range() now uses bitmap operations
We were clearing a range of bits, so use bitmap_clear().
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
| -rw-r--r-- | include/exec/memory-internal.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/include/exec/memory-internal.h b/include/exec/memory-internal.h index 4906cdf0ea..e2f55eaeb1 100644 --- a/include/exec/memory-internal.h +++ b/include/exec/memory-internal.h @@ -95,14 +95,12 @@ static inline void cpu_physical_memory_clear_dirty_range(ram_addr_t start, ram_addr_t length, unsigned client) { - ram_addr_t addr, end; + unsigned long end, page; assert(client < DIRTY_MEMORY_NUM); - end = TARGET_PAGE_ALIGN(start + length); - start &= TARGET_PAGE_MASK; - for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) { - clear_bit(addr >> TARGET_PAGE_BITS, ram_list.dirty_memory[client]); - } + end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS; + page = start >> TARGET_PAGE_BITS; + bitmap_clear(ram_list.dirty_memory[client], page, end - page); } void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |