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deb8e62a83
Adding guarded extents, which are regular extents surrounded by guard pages (mprotected). To reduce syscalls, small guarded extents are cached as a separate eset in ecache, and decay through the dirty / muzzy / retained pipeline as usual.
30 lines
993 B
C
30 lines
993 B
C
#include "jemalloc/internal/jemalloc_preamble.h"
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#include "jemalloc/internal/jemalloc_internal_includes.h"
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size_t
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pai_alloc_batch_default(tsdn_t *tsdn, pai_t *self, size_t size, size_t nallocs,
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edata_list_active_t *results, bool *deferred_work_generated) {
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for (size_t i = 0; i < nallocs; i++) {
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bool deferred_by_alloc = false;
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edata_t *edata = pai_alloc(tsdn, self, size, PAGE,
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/* zero */ false, /* guarded */ false, &deferred_by_alloc);
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*deferred_work_generated |= deferred_by_alloc;
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if (edata == NULL) {
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return i;
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}
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edata_list_active_append(results, edata);
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}
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return nallocs;
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}
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void
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pai_dalloc_batch_default(tsdn_t *tsdn, pai_t *self,
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edata_list_active_t *list, bool *deferred_work_generated) {
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edata_t *edata;
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while ((edata = edata_list_active_first(list)) != NULL) {
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bool deferred_by_dalloc = false;
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edata_list_active_remove(list, edata);
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pai_dalloc(tsdn, self, edata, &deferred_by_dalloc);
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*deferred_work_generated |= deferred_by_dalloc;
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}
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}
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