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--- libmalloc/libmalloc-283.100.6/src/magazine_medium.c
+++ libmalloc/libmalloc-317.40.8/src/magazine_medium.c
@@ -1446,10 +1446,13 @@
MAGMALLOC_RECIRCREGION(MEDIUM_SZONE_FROM_RACK(rack), (int)mag_index, (void *)sparse_region, MEDIUM_REGION_SIZE,
(int)BYTES_USED_FOR_MEDIUM_REGION(sparse_region)); // DTrace USDT Probe
-#if !CONFIG_AGGRESSIVE_MADVISE
- // Mark free'd dirty pages with MADV_FREE to reduce memory pressure
- medium_free_scan_madvise_free(rack, depot_ptr, sparse_region);
+#if CONFIG_AGGRESSIVE_MADVISE
+ if (!aggressive_madvise_enabled)
#endif
+ {
+ // Mark free'd dirty pages with MADV_FREE to reduce memory pressure
+ medium_free_scan_madvise_free(rack, depot_ptr, sparse_region);
+ }
// If the region is entirely empty vm_deallocate() it outside the depot lock
region_t r_dealloc = medium_free_try_depot_unmap_no_lock(rack, depot_ptr, node);
@@ -1501,12 +1504,15 @@
}
} else {
-#if !CONFIG_AGGRESSIVE_MADVISE
- // We are free'ing into the depot, so madvise as we do so unless we were madvising every incoming
- // allocation anyway.
- medium_madvise_free_range_no_lock(rack, medium_mag_ptr,
- vm_kernel_page_size, region, freee, msize, headptr, headsize);
+#if CONFIG_AGGRESSIVE_MADVISE
+ if (!aggressive_madvise_enabled)
#endif
+ {
+ // We are free'ing into the depot, so madvise as we do so unless we were madvising every incoming
+ // allocation anyway.
+ medium_madvise_free_range_no_lock(rack, medium_mag_ptr,
+ vm_kernel_page_size, region, freee, msize, headptr, headsize);
+ }
if (0 < bytes_used || 0 < node->pinned_to_depot) {
/* Depot'd region is still live. Leave it in place on the Depot's recirculation list
@@ -1537,9 +1543,7 @@
MALLOC_TRACE(TRACE_medium_free, (uintptr_t)rack, (uintptr_t)medium_mag_ptr, (uintptr_t)ptr, MEDIUM_BYTES_FOR_MSIZE(msize));
-#if CONFIG_AGGRESSIVE_MADVISE || CONFIG_RECIRC_DEPOT
void *original_ptr = ptr;
-#endif
#if DEBUG_MALLOC
if (!msize) {
@@ -1604,11 +1608,20 @@
size_t bytes_used = trailer->bytes_used - original_size;
trailer->bytes_used = (unsigned int)bytes_used;
- // Always attempt to madvise free regions that exceed the conditional
- // madvise limit size.
- medium_madvise_free_range_conditional_no_lock(rack, medium_mag_ptr,
- medium_sliding_madvise_granularity(medium_mag_ptr), region, &freee,
- msize, original_ptr, original_size);
+#if CONFIG_AGGRESSIVE_MADVISE
+ if (aggressive_madvise_enabled) {
+ medium_madvise_free_range_no_lock(rack, medium_mag_ptr,
+ vm_kernel_page_size, region, freee, msize, original_ptr, original_size);
+ }
+ else
+#endif
+ {
+ // Always attempt to madvise free regions that exceed the conditional
+ // madvise limit size.
+ medium_madvise_free_range_conditional_no_lock(rack, medium_mag_ptr,
+ medium_sliding_madvise_granularity(medium_mag_ptr), region, &freee,
+ msize, original_ptr, original_size);
+ }
// Caller must do SZONE_MAGAZINE_PTR_UNLOCK(tiny_mag_ptr) if this function
// returns TRUE.
@@ -2491,9 +2504,6 @@
static MALLOC_NOINLINE void
free_medium_botch(rack_t *rack, void *ptr)
{
- mag_index_t mag_index = MAGAZINE_INDEX_FOR_MEDIUM_REGION(MEDIUM_REGION_FOR_PTR(ptr));
- magazine_t *medium_mag_ptr = &(rack->magazines[mag_index]);
- SZONE_MAGAZINE_PTR_UNLOCK(medium_mag_ptr);
malloc_zone_error(rack->debug_flags, true, "double free for ptr %p\n", ptr);
}
@@ -2526,6 +2536,7 @@
/* check that we don't already have this pointer in the cache */
if (ptr == ptr2) {
+ SZONE_MAGAZINE_PTR_UNLOCK(medium_mag_ptr);
free_medium_botch(rack, ptr);
return;
}