diff options
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/sys/common/erl_mmap.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/erts/emulator/sys/common/erl_mmap.c b/erts/emulator/sys/common/erl_mmap.c index 60b32e8115..52041fd03e 100644 --- a/erts/emulator/sys/common/erl_mmap.c +++ b/erts/emulator/sys/common/erl_mmap.c @@ -1394,15 +1394,17 @@ alloc_desc_insert_free_seg(ErtsFreeSegMap *map, char* start, char* end) */ #if ERTS_HAVE_OS_MMAP - ptr = os_mmap(mmap_state.desc.new_area_hint, ERTS_PAGEALIGNED_SIZE, 0); - if (ptr) { - mmap_state.desc.new_area_hint = ptr+ERTS_PAGEALIGNED_SIZE; - ERTS_MMAP_SIZE_OS_INC(ERTS_PAGEALIGNED_SIZE); - add_free_desc_area(ptr, ptr+ERTS_PAGEALIGNED_SIZE); - desc = alloc_desc(); - ERTS_MMAP_ASSERT(desc); - insert_free_seg(map, desc, start, end); - return 0; + if (!mmap_state.no_os_mmap) { + ptr = os_mmap(mmap_state.desc.new_area_hint, ERTS_PAGEALIGNED_SIZE, 0); + if (ptr) { + mmap_state.desc.new_area_hint = ptr+ERTS_PAGEALIGNED_SIZE; + ERTS_MMAP_SIZE_OS_INC(ERTS_PAGEALIGNED_SIZE); + add_free_desc_area(ptr, ptr+ERTS_PAGEALIGNED_SIZE); + desc = alloc_desc(); + ERTS_MMAP_ASSERT(desc); + insert_free_seg(map, desc, start, end); + return 0; + } } #endif @@ -2166,6 +2168,7 @@ erts_mmap_init(ErtsMMapInit *init) mmap_state.sa.bot = NULL; mmap_state.sua.top = NULL; mmap_state.no_os_mmap = 0; + mmap_state.supercarrier = 0; } else { size_t desc_size; @@ -2185,10 +2188,10 @@ erts_mmap_init(ErtsMMapInit *init) mmap_state.sa.bot += desc_size; mmap_state.sa.bot = (char *) ERTS_SUPERALIGNED_CEILING(mmap_state.sa.bot); mmap_state.sa.top = mmap_state.sa.bot; - mmap_state.sua.top = (char *) ERTS_SUPERALIGNED_FLOOR(end); + mmap_state.sua.top = end; mmap_state.sua.bot = mmap_state.sua.top; - mmap_state.size.os.used += (UWord) (mmap_state.sa.bot - start); + mmap_state.size.supercarrier.used.total += (UWord) (mmap_state.sa.bot - start); mmap_state.desc.free_list = NULL; mmap_state.desc.reserved = 0; @@ -2201,7 +2204,7 @@ erts_mmap_init(ErtsMMapInit *init) * into the super carrier... */ mmap_state.sua.top -= ERTS_PAGEALIGNED_SIZE; - mmap_state.size.os.used += ERTS_PAGEALIGNED_SIZE; + mmap_state.size.supercarrier.used.total += ERTS_PAGEALIGNED_SIZE; #ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION if (!virtual_map || os_reserve_physical(mmap_state.sua.top, ERTS_PAGEALIGNED_SIZE)) #endif @@ -2209,7 +2212,7 @@ erts_mmap_init(ErtsMMapInit *init) mmap_state.desc.reserved += (end - mmap_state.sua.top) / sizeof(ErtsFreeSegDesc); } - mmap_state.size.supercarrier.total = (UWord) (mmap_state.sua.top - mmap_state.sa.bot); + mmap_state.size.supercarrier.total = (UWord) (mmap_state.sua.top - start); /* * Area before (and after) super carrier |