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Add output argument to hpa_purge_begin to count dirty ranges

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Slobodan Predolac
2025-04-08 10:49:05 -07:00
committed by Qi Wang
parent cfa90dfd80
commit 0dfb4a5a1a
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);