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authorPaolo Bonzini <pbonzini@redhat.com>2012-11-14 16:00:51 +0100
committerJuan Quintela <quintela@redhat.com>2012-12-20 23:08:47 +0100
commitabb26d63e7e4492d306c13b7e0e799d4c11a067c (patch)
tree4c84f372228f2cd71ce4aafe5eb87d36a2e408db /exec.c
parenta3161038a1fd17a638a0c606f71e1f799f65f41b (diff)
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exec: sort the memory from biggest to smallest
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'exec.c')
-rw-r--r--exec.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/exec.c b/exec.c
index 584279a..1ee4fa6 100644
--- a/exec.c
+++ b/exec.c
@@ -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,