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page alloc tracker: count freed pages in addr tracker objects

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This commit is contained in:
Balazs Gerofi
2016-09-23 08:40:01 -04:00
parent f4df713846
commit 5db6c311f4
1 changed files with 9 additions and 2 deletions
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11
kernel/mem.c
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@ -96,6 +96,7 @@ struct pagealloc_track_addr_entry {
struct list_head list; /* track_entry's list */
struct pagealloc_track_entry *entry;
struct list_head hash; /* address hash */
int npages_freed;
};
struct pagealloc_track_entry {
@ -213,6 +214,7 @@ void *_ihk_mc_alloc_aligned_pages(int npages, int p2align,
addr_entry->addr = r;
addr_entry->runcount = pagealloc_runcount;
addr_entry->entry = entry;
addr_entry->npages_freed = 0;
irqflags = ihk_mc_spinlock_lock(&entry->addr_list_lock);
list_add(&addr_entry->list, &entry->addr_list);
@ -259,9 +261,14 @@ void _ihk_mc_free_pages(void *ptr, int npages, char *file, int line)
}
if (addr_entry) {
if (addr_entry->entry->npages != npages) {
if (addr_entry->entry->npages > npages) {
addr_entry->addr += (npages * PAGE_SIZE);
rehash_addr_entry = 1;
addr_entry->npages_freed += npages;
/* Only rehash if haven't freed all pages yet */
if (addr_entry->npages_freed < addr_entry->entry->npages) {
rehash_addr_entry = 1;
}
}
list_del(&addr_entry->hash);