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Pages: Statically detect if pages_huge may succeed

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David Goldblatt 2020-12-05 09:10:15 -08:00 committed by David Goldblatt
parent c1b2a77933
commit 63677dde63
1 changed files with 12 additions and 0 deletions
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12
include/jemalloc/internal/pages.h
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@ -58,6 +58,18 @@ static const bool pages_can_purge_forced =
#endif #endif
; ;
#if defined(JEMALLOC_HAVE_MADVISE_HUGE) || defined(JEMALLOC_HAVE_MEMCNTL)
# define PAGES_CAN_HUGIFY
#endif
static const bool pages_can_hugify =
#ifdef PAGES_CAN_HUGIFY
true
#else
false
#endif
;
typedef enum { typedef enum {
thp_mode_default = 0, /* Do not change hugepage settings. */ thp_mode_default = 0, /* Do not change hugepage settings. */
thp_mode_always = 1, /* Always set MADV_HUGEPAGE. */ thp_mode_always = 1, /* Always set MADV_HUGEPAGE. */