openkylin
/
qemu
mirror of https://gitee.com/openkylin/qemu.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

Fix cache_resize to keep old entry age 

Instead of using cache_insert do the update itself

Signed-off-by: Orit Wasserman <owasserm@redhat.com>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Orit Wasserman 2013-02-25 19:12:02 +02:00 committed by Juan Quintela
parent 0db65d624e
commit a0ee2031db
1 changed files with 9 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
page_cache.c
View File

@ -192,18 +192,17 @@ int64_t cache_resize(PageCache *cache, int64_t new_num_pages)
if (old_it->it_addr != -1) {
/* check for collision, if there is, keep MRU page */
new_it = cache_get_by_addr(new_cache, old_it->it_addr);
if (new_it->it_data) {
if (new_it->it_data && new_it->it_age >= old_it->it_age) {
/* keep the MRU page */
if (new_it->it_age >= old_it->it_age) {
g_free(old_it->it_data);
} else {
g_free(new_it->it_data);
new_it->it_data = old_it->it_data;
new_it->it_age = old_it->it_age;
new_it->it_addr = old_it->it_addr;
}
g_free(old_it->it_data);
} else {
cache_insert(new_cache, old_it->it_addr, old_it->it_data);
if (!new_it->it_data) {
new_cache->num_items++;
}
g_free(new_it->it_data);
new_it->it_data = old_it->it_data;
new_it->it_age = old_it->it_age;
new_it->it_addr = old_it->it_addr;
}
}
}