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exec: sort the memory from biggest to smallest

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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-11-14 16:00:51 +01:00 • committed by Juan Quintela
parent a3161038a1
commit abb26d63e7
2 changed files with 12 additions and 32 deletions
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14
exec.c
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@ -1007,7 +1007,7 @@ static int memory_try_enable_merging(void *addr, size_t len)
ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
MemoryRegion *mr)
{
RAMBlock *new_block;
RAMBlock *block, *new_block;
size = TARGET_PAGE_ALIGN(size);
new_block = g_malloc0(sizeof(*new_block));
@ -1043,7 +1043,17 @@ ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
}
new_block->length = size;
QTAILQ_INSERT_HEAD(&ram_list.blocks, new_block, next);
/* Keep the list sorted from biggest to smallest block. */
QTAILQ_FOREACH(block, &ram_list.blocks, next) {
if (block->length < new_block->length) {
break;
}
}
if (block) {
QTAILQ_INSERT_BEFORE(block, new_block, next);
} else {
QTAILQ_INSERT_TAIL(&ram_list.blocks, new_block, next);
}
ram_list.mru_block = NULL;
ram_list.phys_dirty = g_realloc(ram_list.phys_dirty,