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Add output argument to hpa_purge_begin to count dirty ranges

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This commit is contained in:
Slobodan Predolac 2025-04-08 10:49:05 -07:00
parent cdf72dda56
commit 925d7b3cf5
5 changed files with 27 additions and 9 deletions
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15
test/unit/hpdata.c
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@ -69,8 +69,10 @@ TEST_BEGIN(test_purge_simple) {
hpdata_alloc_allowed_set(&hpdata, false);
hpdata_purge_state_t purge_state;
size_t to_purge = hpdata_purge_begin(&hpdata, &purge_state);
size_t nranges;
size_t to_purge = hpdata_purge_begin(&hpdata, &purge_state, &nranges);
expect_zu_eq(HUGEPAGE_PAGES / 4, to_purge, "");
expect_zu_eq(1, nranges, "All dirty pages in a single range");
void *purge_addr;
size_t purge_size;
@ -113,8 +115,10 @@ TEST_BEGIN(test_purge_intervening_dalloc) {
hpdata_alloc_allowed_set(&hpdata, false);
hpdata_purge_state_t purge_state;
size_t to_purge = hpdata_purge_begin(&hpdata, &purge_state);
size_t nranges;
size_t to_purge = hpdata_purge_begin(&hpdata, &purge_state, &nranges);
expect_zu_eq(HUGEPAGE_PAGES / 2, to_purge, "");
expect_zu_eq(2, nranges, "First quarter and last half");
void *purge_addr;
size_t purge_size;
@ -171,8 +175,10 @@ TEST_BEGIN(test_purge_over_retained) {
/* Purge the second quarter. */
hpdata_alloc_allowed_set(&hpdata, false);
hpdata_purge_state_t purge_state;
size_t to_purge_dirty = hpdata_purge_begin(&hpdata, &purge_state);
size_t nranges;
size_t to_purge_dirty = hpdata_purge_begin(&hpdata, &purge_state, &nranges);
expect_zu_eq(HUGEPAGE_PAGES / 4, to_purge_dirty, "");
expect_zu_eq(1, nranges, "Second quarter only");
bool got_result = hpdata_purge_next(&hpdata, &purge_state, &purge_addr,
&purge_size);
@ -199,8 +205,9 @@ TEST_BEGIN(test_purge_over_retained) {
* re-purge it. We expect a single purge of 3/4 of the hugepage,
* purging half its pages.
*/
to_purge_dirty = hpdata_purge_begin(&hpdata, &purge_state);
to_purge_dirty = hpdata_purge_begin(&hpdata, &purge_state, &nranges);
expect_zu_eq(HUGEPAGE_PAGES / 2, to_purge_dirty, "");
expect_zu_eq(1, nranges, "Single range expected");
got_result = hpdata_purge_next(&hpdata, &purge_state, &purge_addr,
&purge_size);

4
test/unit/psset.c
View file

@ -19,7 +19,9 @@ static void
test_psset_fake_purge(hpdata_t *ps) {
hpdata_purge_state_t purge_state;
hpdata_alloc_allowed_set(ps, false);
hpdata_purge_begin(ps, &purge_state);
size_t nranges;
hpdata_purge_begin(ps, &purge_state, &nranges);
(void) nranges;
void *addr;
size_t size;
while (hpdata_purge_next(ps, &purge_state, &addr, &size)) {