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psset: Reconceptualize insertion/removal.

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Really, this isn't a functional change, just a naming change.  We start thinking
of pageslabs as being always in the psset.  What we used to think of as removal
is now thought of as being in the psset, but in the process of being updated
(and therefore, unavalable for serving new allocations).

This is in preparation of subsequent changes to support deferred purging;
allocations will still be in the psset for the purposes of choosing when to
purge, but not for purposes of allocation/deallocation.
This commit is contained in:
David Goldblatt
2020-12-05 15:58:31 -08:00
committed by David Goldblatt
parent 061cabb712
commit 99fc0717e6
7 changed files with 106 additions and 71 deletions
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6
test/unit/hpdata.c
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@@ -7,6 +7,8 @@ TEST_BEGIN(test_reserve_alloc) {
hpdata_t hpdata;
hpdata_init(&hpdata, HPDATA_ADDR, HPDATA_AGE);
hpdata_updating_set(&hpdata, true);
/* Allocating a page at a time, we should do first fit. */
for (size_t i = 0; i < HUGEPAGE_PAGES; i++) {
expect_true(hpdata_consistent(&hpdata), "");
@@ -59,6 +61,8 @@ TEST_BEGIN(test_purge_simple) {
hpdata_t hpdata;
hpdata_init(&hpdata, HPDATA_ADDR, HPDATA_AGE);
hpdata_updating_set(&hpdata, true);
void *alloc = hpdata_reserve_alloc(&hpdata, HUGEPAGE_PAGES / 2 * PAGE);
expect_ptr_eq(alloc, HPDATA_ADDR, "");
@@ -107,6 +111,7 @@ TEST_END
TEST_BEGIN(test_purge_intervening_dalloc) {
hpdata_t hpdata;
hpdata_init(&hpdata, HPDATA_ADDR, HPDATA_AGE);
hpdata_updating_set(&hpdata, true);
/* Allocate the first 3/4 of the pages. */
void *alloc = hpdata_reserve_alloc(&hpdata, 3 * HUGEPAGE_PAGES / 4 * PAGE);
@@ -160,6 +165,7 @@ TEST_END
TEST_BEGIN(test_hugify) {
hpdata_t hpdata;
hpdata_init(&hpdata, HPDATA_ADDR, HPDATA_AGE);
hpdata_updating_set(&hpdata, true);
void *alloc = hpdata_reserve_alloc(&hpdata, HUGEPAGE / 2);
expect_ptr_eq(alloc, HPDATA_ADDR, "");