From 63466c5522ed58b6e73e35dc29c7c7584f073768 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Wed, 2 Sep 2015 18:35:29 +0200
Subject: erts: Refactor erl_mmap to allow several mapper instances
---
erts/emulator/beam/erl_alloc.c | 5 +-
erts/emulator/beam/erl_bif_info.c | 2 +-
erts/emulator/sys/common/erl_mmap.c | 550 ++++++++++++++++++------------------
erts/emulator/sys/common/erl_mmap.h | 19 +-
erts/emulator/sys/common/erl_mseg.c | 11 +-
5 files changed, 299 insertions(+), 288 deletions(-)
(limited to 'erts')
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index d83a2930d6..bb3998769c 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -2668,7 +2668,7 @@ erts_allocator_info(int to, void *arg)
erts_mseg_info(i, &to, arg, 0, NULL, NULL);
}
erts_print(to, arg, "=allocator:mseg_alloc.erts_mmap\n");
- erts_mmap_info(&to, arg, NULL, NULL, &emis);
+ erts_mmap_info(&erts_dflt_mmapper, &to, arg, NULL, NULL, &emis);
}
#endif
@@ -3020,7 +3020,8 @@ reply_alloc_info(void *vair)
ai_list = erts_bld_cons(hpp, szp,
ainfo, ai_list);
- ainfo = (air->only_sz ? NIL : erts_mmap_info(NULL, NULL, hpp, szp, &emis));
+ ainfo = (air->only_sz ? NIL :
+ erts_mmap_info(&erts_dflt_mmapper, NULL, NULL, hpp, szp, &emis));
ainfo = erts_bld_tuple3(hpp, szp,
alloc_atom,
erts_bld_atom(hpp,szp,"erts_mmap"),
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 79ccf8db64..a73ad826db 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -3441,7 +3441,7 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
BIF_RET(res);
}
else if (ERTS_IS_ATOM_STR("mmap", BIF_ARG_1)) {
- BIF_RET(erts_mmap_debug_info(BIF_P));
+ BIF_RET(erts_mmap_debug_info(&erts_dflt_mmapper, BIF_P));
}
else if (ERTS_IS_ATOM_STR("unique_monotonic_integer_state", BIF_ARG_1)) {
BIF_RET(erts_debug_get_unique_monotonic_integer_state(BIF_P));
diff --git a/erts/emulator/sys/common/erl_mmap.c b/erts/emulator/sys/common/erl_mmap.c
index eeaf96dd93..e8ff2bf752 100644
--- a/erts/emulator/sys/common/erl_mmap.c
+++ b/erts/emulator/sys/common/erl_mmap.c
@@ -51,21 +51,21 @@
#endif
/*
- * `mmap_state.sa.bot` and `mmap_state.sua.top` are read only after
+ * `mm->sa.bot` and `mm->sua.top` are read only after
* initialization, but the other pointers are not; i.e., only
* ERTS_MMAP_IN_SUPERCARRIER() is allowed without the mutex held.
*/
#define ERTS_MMAP_IN_SUPERCARRIER(PTR) \
- (((UWord) (PTR)) - ((UWord) mmap_state.sa.bot) \
- < ((UWord) mmap_state.sua.top) - ((UWord) mmap_state.sa.bot))
+ (((UWord) (PTR)) - ((UWord) mm->sa.bot) \
+ < ((UWord) mm->sua.top) - ((UWord) mm->sa.bot))
#define ERTS_MMAP_IN_SUPERALIGNED_AREA(PTR) \
- (ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&mmap_state.mtx)), \
- (((UWord) (PTR)) - ((UWord) mmap_state.sa.bot) \
- < ((UWord) mmap_state.sa.top) - ((UWord) mmap_state.sa.bot)))
+ (ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&mm->mtx)), \
+ (((UWord) (PTR)) - ((UWord) mm->sa.bot) \
+ < ((UWord) mm->sa.top) - ((UWord) mm->sa.bot)))
#define ERTS_MMAP_IN_SUPERUNALIGNED_AREA(PTR) \
- (ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&mmap_state.mtx)), \
- (((UWord) (PTR)) - ((UWord) mmap_state.sua.bot) \
- < ((UWord) mmap_state.sua.top) - ((UWord) mmap_state.sua.bot)))
+ (ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&mm->mtx)), \
+ (((UWord) (PTR)) - ((UWord) mm->sua.bot) \
+ < ((UWord) mm->sua.top) - ((UWord) mm->sua.bot)))
UWord erts_page_inv_mask;
@@ -196,10 +196,10 @@ static ErtsMMapOp mmap_ops[ERTS_MMAP_OP_RINGBUF_SZ];
#define ERTS_MMAP_OP_LCK(RES, IN_SZ, OUT_SZ) \
do { \
- erts_smp_mtx_lock(&mmap_state.mtx); \
+ erts_smp_mtx_lock(&mm->mtx); \
ERTS_MMAP_OP_START((IN_SZ)); \
ERTS_MMAP_OP_END((RES), (OUT_SZ)); \
- erts_smp_mtx_unlock(&mmap_state.mtx); \
+ erts_smp_mtx_unlock(&mm->mtx); \
} while (0)
#define ERTS_MUNMAP_OP(PTR, SZ) \
@@ -218,9 +218,9 @@ static ErtsMMapOp mmap_ops[ERTS_MMAP_OP_RINGBUF_SZ];
#define ERTS_MUNMAP_OP_LCK(PTR, SZ) \
do { \
- erts_smp_mtx_lock(&mmap_state.mtx); \
+ erts_smp_mtx_lock(&mm->mtx); \
ERTS_MUNMAP_OP((PTR), (SZ)); \
- erts_smp_mtx_unlock(&mmap_state.mtx); \
+ erts_smp_mtx_unlock(&mm->mtx); \
} while (0)
#define ERTS_MREMAP_OP_START(OLD_PTR, OLD_SZ, IN_SZ) \
@@ -246,10 +246,10 @@ static ErtsMMapOp mmap_ops[ERTS_MMAP_OP_RINGBUF_SZ];
#define ERTS_MREMAP_OP_LCK(RES, OLD_PTR, OLD_SZ, IN_SZ, OUT_SZ) \
do { \
- erts_smp_mtx_lock(&mmap_state.mtx); \
+ erts_smp_mtx_lock(&mm->mtx); \
ERTS_MREMAP_OP_START((OLD_PTR), (OLD_SZ), (IN_SZ)); \
ERTS_MREMAP_OP_END((RES), (OUT_SZ)); \
- erts_smp_mtx_unlock(&mmap_state.mtx); \
+ erts_smp_mtx_unlock(&mm->mtx); \
} while (0)
#define ERTS_MMAP_OP_ABORT() \
@@ -293,7 +293,7 @@ typedef struct {
Uint nseg;
}ErtsFreeSegMap;
-static struct {
+struct ErtsMemMapper_ {
int (*reserve_physical)(char *, UWord);
void (*unreserve_physical)(char *, UWord);
int supercarrier;
@@ -345,54 +345,56 @@ static struct {
UWord used;
} os;
} size;
-} mmap_state;
+};
+
+ErtsMemMapper erts_dflt_mmapper;
#define ERTS_MMAP_SIZE_SC_SA_INC(SZ) \
do { \
- mmap_state.size.supercarrier.used.total += (SZ); \
- mmap_state.size.supercarrier.used.sa += (SZ); \
- ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.total \
- <= mmap_state.size.supercarrier.total); \
- ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.sa \
- <= mmap_state.size.supercarrier.used.total); \
+ mm->size.supercarrier.used.total += (SZ); \
+ mm->size.supercarrier.used.sa += (SZ); \
+ ERTS_MMAP_ASSERT(mm->size.supercarrier.used.total \
+ <= mm->size.supercarrier.total); \
+ ERTS_MMAP_ASSERT(mm->size.supercarrier.used.sa \
+ <= mm->size.supercarrier.used.total); \
} while (0)
#define ERTS_MMAP_SIZE_SC_SA_DEC(SZ) \
do { \
- ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.total >= (SZ)); \
- mmap_state.size.supercarrier.used.total -= (SZ); \
- ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.sa >= (SZ)); \
- mmap_state.size.supercarrier.used.sa -= (SZ); \
+ ERTS_MMAP_ASSERT(mm->size.supercarrier.used.total >= (SZ)); \
+ mm->size.supercarrier.used.total -= (SZ); \
+ ERTS_MMAP_ASSERT(mm->size.supercarrier.used.sa >= (SZ)); \
+ mm->size.supercarrier.used.sa -= (SZ); \
} while (0)
#define ERTS_MMAP_SIZE_SC_SUA_INC(SZ) \
do { \
- mmap_state.size.supercarrier.used.total += (SZ); \
- mmap_state.size.supercarrier.used.sua += (SZ); \
- ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.total \
- <= mmap_state.size.supercarrier.total); \
- ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.sua \
- <= mmap_state.size.supercarrier.used.total); \
+ mm->size.supercarrier.used.total += (SZ); \
+ mm->size.supercarrier.used.sua += (SZ); \
+ ERTS_MMAP_ASSERT(mm->size.supercarrier.used.total \
+ <= mm->size.supercarrier.total); \
+ ERTS_MMAP_ASSERT(mm->size.supercarrier.used.sua \
+ <= mm->size.supercarrier.used.total); \
} while (0)
#define ERTS_MMAP_SIZE_SC_SUA_DEC(SZ) \
do { \
- ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.total >= (SZ)); \
- mmap_state.size.supercarrier.used.total -= (SZ); \
- ERTS_MMAP_ASSERT(mmap_state.size.supercarrier.used.sua >= (SZ)); \
- mmap_state.size.supercarrier.used.sua -= (SZ); \
+ ERTS_MMAP_ASSERT(mm->size.supercarrier.used.total >= (SZ)); \
+ mm->size.supercarrier.used.total -= (SZ); \
+ ERTS_MMAP_ASSERT(mm->size.supercarrier.used.sua >= (SZ)); \
+ mm->size.supercarrier.used.sua -= (SZ); \
} while (0)
#define ERTS_MMAP_SIZE_OS_INC(SZ) \
do { \
- ERTS_MMAP_ASSERT(mmap_state.size.os.used + (SZ) >= (SZ)); \
- mmap_state.size.os.used += (SZ); \
+ ERTS_MMAP_ASSERT(mm->size.os.used + (SZ) >= (SZ)); \
+ mm->size.os.used += (SZ); \
} while (0)
#define ERTS_MMAP_SIZE_OS_DEC(SZ) \
do { \
- ERTS_MMAP_ASSERT(mmap_state.size.os.used >= (SZ)); \
- mmap_state.size.os.used -= (SZ); \
+ ERTS_MMAP_ASSERT(mm->size.os.used >= (SZ)); \
+ mm->size.os.used -= (SZ); \
} while (0)
static void
-add_free_desc_area(char *start, char *end)
+add_free_desc_area(ErtsMemMapper* mm, char *start, char *end)
{
ERTS_MMAP_ASSERT(end == (void *) 0 || end > start);
if (sizeof(ErtsFreeSegDesc) <= ((UWord) end) - ((UWord) start)) {
@@ -402,7 +404,7 @@ add_free_desc_area(char *start, char *end)
no = 1;
prev_desc = (ErtsFreeSegDesc *) start;
- prev_desc->start = mmap_state.desc.free_list;
+ prev_desc->start = mm->desc.free_list;
desc = (ErtsFreeSegDesc *) (start + sizeof(ErtsFreeSegDesc));
desc_end = start + 2*sizeof(ErtsFreeSegDesc);
@@ -413,59 +415,59 @@ add_free_desc_area(char *start, char *end)
desc_end += sizeof(ErtsFreeSegDesc);
no++;
}
- mmap_state.desc.free_list = (char *) prev_desc;
- mmap_state.no.free_seg_descs += no;
+ mm->desc.free_list = (char *) prev_desc;
+ mm->no.free_seg_descs += no;
}
}
static ErtsFreeSegDesc *
-add_unused_free_desc_area(void)
+add_unused_free_desc_area(ErtsMemMapper* mm)
{
char *ptr;
- if (!mmap_state.desc.unused_start)
+ if (!mm->desc.unused_start)
return NULL;
- ERTS_MMAP_ASSERT(mmap_state.desc.unused_end);
+ ERTS_MMAP_ASSERT(mm->desc.unused_end);
ERTS_MMAP_ASSERT(ERTS_PAGEALIGNED_SIZE
- <= mmap_state.desc.unused_end - mmap_state.desc.unused_start);
+ <= mm->desc.unused_end - mm->desc.unused_start);
- ptr = mmap_state.desc.unused_start + ERTS_PAGEALIGNED_SIZE;
- add_free_desc_area(mmap_state.desc.unused_start, ptr);
+ ptr = mm->desc.unused_start + ERTS_PAGEALIGNED_SIZE;
+ add_free_desc_area(mm, mm->desc.unused_start, ptr);
- if ((mmap_state.desc.unused_end - ptr) >= ERTS_PAGEALIGNED_SIZE)
- mmap_state.desc.unused_start = ptr;
+ if ((mm->desc.unused_end - ptr) >= ERTS_PAGEALIGNED_SIZE)
+ mm->desc.unused_start = ptr;
else
- mmap_state.desc.unused_end = mmap_state.desc.unused_start = NULL;
+ mm->desc.unused_end = mm->desc.unused_start = NULL;
- ERTS_MMAP_ASSERT(mmap_state.desc.free_list);
- return (ErtsFreeSegDesc *) mmap_state.desc.free_list;
+ ERTS_MMAP_ASSERT(mm->desc.free_list);
+ return (ErtsFreeSegDesc *) mm->desc.free_list;
}
static ERTS_INLINE ErtsFreeSegDesc *
-alloc_desc(void)
+alloc_desc(ErtsMemMapper* mm)
{
ErtsFreeSegDesc *res;
- res = (ErtsFreeSegDesc *) mmap_state.desc.free_list;
+ res = (ErtsFreeSegDesc *) mm->desc.free_list;
if (!res) {
- res = add_unused_free_desc_area();
+ res = add_unused_free_desc_area(mm);
if (!res)
return NULL;
}
- mmap_state.desc.free_list = res->start;
- ASSERT(mmap_state.no.free_segs.curr < mmap_state.no.free_seg_descs);
- mmap_state.no.free_segs.curr++;
- if (mmap_state.no.free_segs.max < mmap_state.no.free_segs.curr)
- mmap_state.no.free_segs.max = mmap_state.no.free_segs.curr;
+ mm->desc.free_list = res->start;
+ ASSERT(mm->no.free_segs.curr < mm->no.free_seg_descs);
+ mm->no.free_segs.curr++;
+ if (mm->no.free_segs.max < mm->no.free_segs.curr)
+ mm->no.free_segs.max = mm->no.free_segs.curr;
return res;
}
static ERTS_INLINE void
-free_desc(ErtsFreeSegDesc *desc)
+free_desc(ErtsMemMapper* mm, ErtsFreeSegDesc *desc)
{
- desc->start = mmap_state.desc.free_list;
- mmap_state.desc.free_list = (char *) desc;
- ERTS_MMAP_ASSERT(mmap_state.no.free_segs.curr > 0);
- mmap_state.no.free_segs.curr--;
+ desc->start = mm->desc.free_list;
+ mm->desc.free_list = (char *) desc;
+ ERTS_MMAP_ASSERT(mm->no.free_segs.curr > 0);
+ mm->no.free_segs.curr--;
}
static ERTS_INLINE ErtsFreeSegDesc* anode_to_desc(RBTNode* anode)
@@ -1232,7 +1234,7 @@ Eterm build_free_seg_list(Process* p, ErtsFreeSegMap* map)
# define ERTS_MMAP_FD (-1)
# else
# define ERTS_MMAP_FLAGS (MAP_PRIVATE)
-# define ERTS_MMAP_FD mmap_state.mmap_fd
+# define ERTS_MMAP_FD mm->mmap_fd
# endif
#endif
@@ -1377,11 +1379,12 @@ static void unreserve_noop(char *ptr, UWord size)
}
static UWord
-alloc_desc_insert_free_seg(ErtsFreeSegMap *map, char* start, char* end)
+alloc_desc_insert_free_seg(ErtsMemMapper* mm,
+ ErtsFreeSegMap *map, char* start, char* end)
{
char *ptr;
ErtsFreeSegMap *da_map;
- ErtsFreeSegDesc *desc = alloc_desc();
+ ErtsFreeSegDesc *desc = alloc_desc(mm);
if (desc) {
insert_free_seg(map, desc, start, end);
return 0;
@@ -1394,13 +1397,13 @@ alloc_desc_insert_free_seg(ErtsFreeSegMap *map, char* start, char* end)
*/
#if ERTS_HAVE_OS_MMAP
- if (!mmap_state.no_os_mmap) {
- ptr = os_mmap(mmap_state.desc.new_area_hint, ERTS_PAGEALIGNED_SIZE, 0);
+ if (!mm->no_os_mmap) {
+ ptr = os_mmap(mm->desc.new_area_hint, ERTS_PAGEALIGNED_SIZE, 0);
if (ptr) {
- mmap_state.desc.new_area_hint = ptr+ERTS_PAGEALIGNED_SIZE;
+ mm->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();
+ add_free_desc_area(mm, ptr, ptr+ERTS_PAGEALIGNED_SIZE);
+ desc = alloc_desc(mm);
ERTS_MMAP_ASSERT(desc);
insert_free_seg(map, desc, start, end);
return 0;
@@ -1411,20 +1414,20 @@ alloc_desc_insert_free_seg(ErtsFreeSegMap *map, char* start, char* end)
/*
* ...then try to find a good place in the supercarrier...
*/
- da_map = &mmap_state.sua.map;
+ da_map = &mm->sua.map;
desc = lookup_free_seg(da_map, ERTS_PAGEALIGNED_SIZE);
if (desc) {
- if (mmap_state.reserve_physical(desc->start, ERTS_PAGEALIGNED_SIZE))
+ if (mm->reserve_physical(desc->start, ERTS_PAGEALIGNED_SIZE))
ERTS_MMAP_SIZE_SC_SUA_INC(ERTS_PAGEALIGNED_SIZE);
else
desc = NULL;
}
else {
- da_map = &mmap_state.sa.map;
+ da_map = &mm->sa.map;
desc = lookup_free_seg(da_map, ERTS_PAGEALIGNED_SIZE);
if (desc) {
- if (mmap_state.reserve_physical(desc->start, ERTS_PAGEALIGNED_SIZE))
+ if (mm->reserve_physical(desc->start, ERTS_PAGEALIGNED_SIZE))
ERTS_MMAP_SIZE_SC_SA_INC(ERTS_PAGEALIGNED_SIZE);
else
desc = NULL;
@@ -1432,15 +1435,15 @@ alloc_desc_insert_free_seg(ErtsFreeSegMap *map, char* start, char* end)
}
if (desc) {
char *da_end = desc->start + ERTS_PAGEALIGNED_SIZE;
- add_free_desc_area(desc->start, da_end);
+ add_free_desc_area(mm, desc->start, da_end);
if (da_end != desc->end)
resize_free_seg(da_map, desc, da_end, desc->end);
else {
delete_free_seg(da_map, desc);
- free_desc(desc);
+ free_desc(mm, desc);
}
- desc = alloc_desc();
+ desc = alloc_desc(mm);
ERTS_MMAP_ASSERT(desc);
insert_free_seg(map, desc, start, end);
return 0;
@@ -1453,10 +1456,10 @@ alloc_desc_insert_free_seg(ErtsFreeSegMap *map, char* start, char* end)
ptr = start + ERTS_PAGEALIGNED_SIZE;
ERTS_MMAP_ASSERT(ptr <= end);
- add_free_desc_area(start, ptr);
+ add_free_desc_area(mm, start, ptr);
if (ptr != end) {
- desc = alloc_desc();
+ desc = alloc_desc(mm);
ERTS_MMAP_ASSERT(desc);
insert_free_seg(map, desc, ptr, end);
}
@@ -1465,46 +1468,46 @@ alloc_desc_insert_free_seg(ErtsFreeSegMap *map, char* start, char* end)
}
void *
-erts_mmap(Uint32 flags, UWord *sizep)
+erts_mmap(ErtsMemMapper* mm, Uint32 flags, UWord *sizep)
{
char *seg;
UWord asize = ERTS_PAGEALIGNED_CEILING(*sizep);
/* Map in premapped supercarrier */
- if (mmap_state.supercarrier && !(ERTS_MMAPFLG_OS_ONLY & flags)) {
+ if (mm->supercarrier && !(ERTS_MMAPFLG_OS_ONLY & flags)) {
char *end;
ErtsFreeSegDesc *desc;
Uint32 superaligned = (ERTS_MMAPFLG_SUPERALIGNED & flags);
- erts_smp_mtx_lock(&mmap_state.mtx);
+ erts_smp_mtx_lock(&mm->mtx);
ERTS_MMAP_OP_START(*sizep);
if (!superaligned) {
- desc = lookup_free_seg(&mmap_state.sua.map, asize);
+ desc = lookup_free_seg(&mm->sua.map, asize);
if (desc) {
seg = desc->start;
end = seg+asize;
- if (!mmap_state.reserve_physical(seg, asize))
+ if (!mm->reserve_physical(seg, asize))
goto supercarrier_reserve_failure;
if (desc->end == end) {
- delete_free_seg(&mmap_state.sua.map, desc);
- free_desc(desc);
+ delete_free_seg(&mm->sua.map, desc);
+ free_desc(mm, desc);
}
else {
ERTS_MMAP_ASSERT(end < desc->end);
- resize_free_seg(&mmap_state.sua.map, desc, end, desc->end);
+ resize_free_seg(&mm->sua.map, desc, end, desc->end);
}
ERTS_MMAP_SIZE_SC_SUA_INC(asize);
goto supercarrier_success;
}
- if (asize <= mmap_state.sua.bot - mmap_state.sa.top) {
- if (!mmap_state.reserve_physical(mmap_state.sua.bot - asize,
+ if (asize <= mm->sua.bot - mm->sa.top) {
+ if (!mm->reserve_physical(mm->sua.bot - asize,
asize))
goto supercarrier_reserve_failure;
- mmap_state.sua.bot -= asize;
- seg = mmap_state.sua.bot;
+ mm->sua.bot -= asize;
+ seg = mm->sua.bot;
ERTS_MMAP_SIZE_SC_SUA_INC(asize);
goto supercarrier_success;
}
@@ -1512,84 +1515,84 @@ erts_mmap(Uint32 flags, UWord *sizep)
asize = ERTS_SUPERALIGNED_CEILING(asize);
- desc = lookup_free_seg(&mmap_state.sa.map, asize);
+ desc = lookup_free_seg(&mm->sa.map, asize);
if (desc) {
char *start = seg = desc->start;
seg = (char *) ERTS_SUPERALIGNED_CEILING(seg);
end = seg+asize;
- if (!mmap_state.reserve_physical(start, (UWord) (end - start)))
+ if (!mm->reserve_physical(start, (UWord) (end - start)))
goto supercarrier_reserve_failure;
ERTS_MMAP_SIZE_SC_SA_INC(asize);
if (desc->end == end) {
if (start != seg)
- resize_free_seg(&mmap_state.sa.map, desc, start, seg);
+ resize_free_seg(&mm->sa.map, desc, start, seg);
else {
- delete_free_seg(&mmap_state.sa.map, desc);
- free_desc(desc);
+ delete_free_seg(&mm->sa.map, desc);
+ free_desc(mm, desc);
}
}
else {
ERTS_MMAP_ASSERT(end < desc->end);
- resize_free_seg(&mmap_state.sa.map, desc, end, desc->end);
+ resize_free_seg(&mm->sa.map, desc, end, desc->end);
if (start != seg) {
UWord ad_sz;
- ad_sz = alloc_desc_insert_free_seg(&mmap_state.sua.map,
+ ad_sz = alloc_desc_insert_free_seg(mm, &mm->sua.map,
start, seg);
start += ad_sz;
if (start != seg)
- mmap_state.unreserve_physical(start, (UWord) (seg - start));
+ mm->unreserve_physical(start, (UWord) (seg - start));
}
}
goto supercarrier_success;
}
if (superaligned) {
- char *start = mmap_state.sa.top;
+ char *start = mm->sa.top;
seg = (char *) ERTS_SUPERALIGNED_CEILING(start);
- if (asize + (seg - start) <= mmap_state.sua.bot - start) {
+ if (asize + (seg - start) <= mm->sua.bot - start) {
end = seg + asize;
- if (!mmap_state.reserve_physical(start, (UWord) (end - start)))
+ if (!mm->reserve_physical(start, (UWord) (end - start)))
goto supercarrier_reserve_failure;
- mmap_state.sa.top = end;
+ mm->sa.top = end;
ERTS_MMAP_SIZE_SC_SA_INC(asize);
if (start != seg) {
UWord ad_sz;
- ad_sz = alloc_desc_insert_free_seg(&mmap_state.sua.map,
+ ad_sz = alloc_desc_insert_free_seg(mm, &mm->sua.map,
start, seg);
start += ad_sz;
if (start != seg)
- mmap_state.unreserve_physical(start, (UWord) (seg - start));
+ mm->unreserve_physical(start, (UWord) (seg - start));
}
goto supercarrier_success;
}
- desc = lookup_free_seg(&mmap_state.sua.map, asize + ERTS_SUPERALIGNED_SIZE);
+ desc = lookup_free_seg(&mm->sua.map, asize + ERTS_SUPERALIGNED_SIZE);
if (desc) {
char *org_start = desc->start;
char *org_end = desc->end;
seg = (char *) ERTS_SUPERALIGNED_CEILING(org_start);
end = seg + asize;
- if (!mmap_state.reserve_physical(seg, (UWord) (org_end - seg)))
+ if (!mm->reserve_physical(seg, (UWord) (org_end - seg)))
goto supercarrier_reserve_failure;
ERTS_MMAP_SIZE_SC_SUA_INC(asize);
if (org_start != seg) {
ERTS_MMAP_ASSERT(org_start < seg);
- resize_free_seg(&mmap_state.sua.map, desc, org_start, seg);
+ resize_free_seg(&mm->sua.map, desc, org_start, seg);
desc = NULL;
}
if (end != org_end) {
UWord ad_sz = 0;
ERTS_MMAP_ASSERT(end < org_end);
if (desc)
- resize_free_seg(&mmap_state.sua.map, desc, end, org_end);
+ resize_free_seg(&mm->sua.map, desc, end, org_end);
else
- ad_sz = alloc_desc_insert_free_seg(&mmap_state.sua.map,
+ ad_sz = alloc_desc_insert_free_seg(mm, &mm->sua.map,
end, org_end);
end += ad_sz;
if (end != org_end)
- mmap_state.unreserve_physical(end,
+ mm->unreserve_physical(end,
(UWord) (org_end - end));
}
goto supercarrier_success;
@@ -1597,12 +1600,12 @@ erts_mmap(Uint32 flags, UWord *sizep)
}
ERTS_MMAP_OP_ABORT();
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ erts_smp_mtx_unlock(&mm->mtx);
}
#if ERTS_HAVE_OS_MMAP
/* Map using OS primitives */
- if (!(ERTS_MMAPFLG_SUPERCARRIER_ONLY & flags) && !mmap_state.no_os_mmap) {
+ if (!(ERTS_MMAPFLG_SUPERCARRIER_ONLY & flags) && !mm->no_os_mmap) {
if (!(ERTS_MMAPFLG_SUPERALIGNED & flags)) {
seg = os_mmap(NULL, asize, 0);
if (!seg)
@@ -1660,25 +1663,25 @@ supercarrier_success:
#endif
ERTS_MMAP_OP_END(seg, asize);
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ erts_smp_mtx_unlock(&mm->mtx);
*sizep = asize;
return (void *) seg;
supercarrier_reserve_failure:
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ erts_smp_mtx_unlock(&mm->mtx);
*sizep = 0;
return NULL;
}
void
-erts_munmap(Uint32 flags, void *ptr, UWord size)
+erts_munmap(ErtsMemMapper* mm, Uint32 flags, void *ptr, UWord size)
{
ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(ptr));
ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(size));
if (!ERTS_MMAP_IN_SUPERCARRIER(ptr)) {
- ERTS_MMAP_ASSERT(!mmap_state.no_os_mmap);
+ ERTS_MMAP_ASSERT(!mm->no_os_mmap);
#if ERTS_HAVE_OS_MMAP
ERTS_MUNMAP_OP_LCK(ptr, size);
ERTS_MMAP_SIZE_OS_DEC(size);
@@ -1691,45 +1694,45 @@ erts_munmap(Uint32 flags, void *ptr, UWord size)
ErtsFreeSegDesc *prev, *next, *desc;
UWord ad_sz = 0;
- ERTS_MMAP_ASSERT(mmap_state.supercarrier);
+ ERTS_MMAP_ASSERT(mm->supercarrier);
start = (char *) ptr;
end = start + size;
- erts_smp_mtx_lock(&mmap_state.mtx);
+ erts_smp_mtx_lock(&mm->mtx);
ERTS_MUNMAP_OP(ptr, size);
if (ERTS_MMAP_IN_SUPERALIGNED_AREA(ptr)) {
- map = &mmap_state.sa.map;
+ map = &mm->sa.map;
adjacent_free_seg(map, start, end, &prev, &next);
ERTS_MMAP_SIZE_SC_SA_DEC(size);
- if (end == mmap_state.sa.top) {
+ if (end == mm->sa.top) {
ERTS_MMAP_ASSERT(!next);
if (prev) {
start = prev->start;
delete_free_seg(map, prev);
- free_desc(prev);
+ free_desc(mm, prev);
}
- mmap_state.sa.top = start;
+ mm->sa.top = start;
goto supercarrier_success;
}
}
else {
- map = &mmap_state.sua.map;
+ map = &mm->sua.map;
adjacent_free_seg(map, start, end, &prev, &next);
ERTS_MMAP_SIZE_SC_SUA_DEC(size);
- if (start == mmap_state.sua.bot) {
+ if (start == mm->sua.bot) {
ERTS_MMAP_ASSERT(!prev);
if (next) {
end = next->end;
delete_free_seg(map, next);
- free_desc(next);
+ free_desc(mm, next);
}
- mmap_state.sua.bot = end;
+ mm->sua.bot = end;
goto supercarrier_success;
}
}
@@ -1741,7 +1744,7 @@ erts_munmap(Uint32 flags, void *ptr, UWord size)
end = next->end;
if (prev) {
delete_free_seg(map, next);
- free_desc(next);
+ free_desc(mm, next);
goto save_prev;
}
desc = next;
@@ -1755,7 +1758,7 @@ erts_munmap(Uint32 flags, void *ptr, UWord size)
if (desc)
resize_free_seg(map, desc, start, end);
else
- ad_sz = alloc_desc_insert_free_seg(map, start, end);
+ ad_sz = alloc_desc_insert_free_seg(mm, map, start, end);
supercarrier_success: {
UWord unres_sz;
@@ -1763,30 +1766,32 @@ erts_munmap(Uint32 flags, void *ptr, UWord size)
ERTS_MMAP_ASSERT(size >= ad_sz);
unres_sz = size - ad_sz;
if (unres_sz)
- mmap_state.unreserve_physical(((char *) ptr) + ad_sz, unres_sz);
+ mm->unreserve_physical(((char *) ptr) + ad_sz, unres_sz);
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ erts_smp_mtx_unlock(&mm->mtx);
}
}
}
static void *
-remap_move(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
+remap_move(ErtsMemMapper* mm,
+ Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
{
UWord size = *sizep;
- void *new_ptr = erts_mmap(flags, &size);
+ void *new_ptr = erts_mmap(mm, flags, &size);
if (!new_ptr)
return NULL;
*sizep = size;
if (old_size < size)
size = old_size;
sys_memcpy(new_ptr, ptr, (size_t) size);
- erts_munmap(flags, ptr, old_size);
+ erts_munmap(mm, flags, ptr, old_size);
return new_ptr;
}
void *
-erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
+erts_mremap(ErtsMemMapper* mm,
+ Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
{
void *new_ptr;
Uint32 superaligned;
@@ -1798,11 +1803,11 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
if (!ERTS_MMAP_IN_SUPERCARRIER(ptr)) {
- ERTS_MMAP_ASSERT(!mmap_state.no_os_mmap);
+ ERTS_MMAP_ASSERT(!mm->no_os_mmap);
- if (!(ERTS_MMAPFLG_OS_ONLY & flags) && mmap_state.supercarrier) {
- new_ptr = remap_move(ERTS_MMAPFLG_SUPERCARRIER_ONLY|flags, ptr,
- old_size, sizep);
+ if (!(ERTS_MMAPFLG_OS_ONLY & flags) && mm->supercarrier) {
+ new_ptr = remap_move(mm, ERTS_MMAPFLG_SUPERCARRIER_ONLY|flags,
+ ptr, old_size, sizep);
if (new_ptr)
return new_ptr;
}
@@ -1849,7 +1854,7 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
#endif
#if ERTS_HAVE_OS_MREMAP
if (superaligned)
- return remap_move(flags, new_ptr, old_size, sizep);
+ return remap_move(mm, flags, new_ptr, old_size, sizep);
else {
new_ptr = os_mremap(ptr, old_size, asize, 0);
if (!new_ptr)
@@ -1871,10 +1876,10 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
ErtsFreeSegDesc *prev, *next;
UWord ad_sz = 0;
- ERTS_MMAP_ASSERT(mmap_state.supercarrier);
+ ERTS_MMAP_ASSERT(mm->supercarrier);
if (ERTS_MMAPFLG_OS_ONLY & flags)
- return remap_move(flags, ptr, old_size, sizep);
+ return remap_move(mm, flags, ptr, old_size, sizep);
superaligned = (ERTS_MMAPFLG_SUPERALIGNED & flags);
@@ -1882,19 +1887,19 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
? ERTS_SUPERALIGNED_CEILING(*sizep)
: ERTS_PAGEALIGNED_CEILING(*sizep));
- erts_smp_mtx_lock(&mmap_state.mtx);
+ erts_smp_mtx_lock(&mm->mtx);
if (ERTS_MMAP_IN_SUPERALIGNED_AREA(ptr)
- ? (!superaligned && lookup_free_seg(&mmap_state.sua.map, asize))
- : (superaligned && lookup_free_seg(&mmap_state.sa.map, asize))) {
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ ? (!superaligned && lookup_free_seg(&mm->sua.map, asize))
+ : (superaligned && lookup_free_seg(&mm->sa.map, asize))) {
+ erts_smp_mtx_unlock(&mm->mtx);
/*
* Segment currently in wrong area (due to a previous memory
* shortage), move it to the right area.
* (remap_move() will succeed)
*/
- return remap_move(ERTS_MMAPFLG_SUPERCARRIER_ONLY|flags, ptr,
- old_size, sizep);
+ return remap_move(mm, ERTS_MMAPFLG_SUPERCARRIER_ONLY|flags,
+ ptr, old_size, sizep);
}
ERTS_MREMAP_OP_START(ptr, old_size, *sizep);
@@ -1916,18 +1921,18 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
UWord unres_sz;
new_ptr = ptr;
if (!ERTS_MMAP_IN_SUPERALIGNED_AREA(ptr)) {
- map = &mmap_state.sua.map;
+ map = &mm->sua.map;
ERTS_MMAP_SIZE_SC_SUA_DEC(old_size - asize);
}
else {
- if (end == mmap_state.sa.top) {
- mmap_state.sa.top = new_end;
- mmap_state.unreserve_physical(((char *) ptr) + asize,
+ if (end == mm->sa.top) {
+ mm->sa.top = new_end;
+ mm->unreserve_physical(((char *) ptr) + asize,
old_size - asize);
goto supercarrier_resize_success;
}
ERTS_MMAP_SIZE_SC_SA_DEC(old_size - asize);
- map = &mmap_state.sa.map;
+ map = &mm->sa.map;
}
adjacent_free_seg(map, start, end, &prev, &next);
@@ -1935,11 +1940,11 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
if (next)
resize_free_seg(map, next, new_end, next->end);
else
- ad_sz = alloc_desc_insert_free_seg(map, new_end, end);
+ ad_sz = alloc_desc_insert_free_seg(mm, map, new_end, end);
ERTS_MMAP_ASSERT(old_size - asize >= ad_sz);
unres_sz = old_size - asize - ad_sz;
if (unres_sz)
- mmap_state.unreserve_physical(((char *) ptr) + asize + ad_sz,
+ mm->unreserve_physical(((char *) ptr) + asize + ad_sz,
unres_sz);
goto supercarrier_resize_success;
}
@@ -1949,17 +1954,17 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(old_size));
ERTS_MMAP_ASSERT(ERTS_IS_PAGEALIGNED(asize));
- adjacent_free_seg(&mmap_state.sua.map, start, end, &prev, &next);
+ adjacent_free_seg(&mm->sua.map, start, end, &prev, &next);
if (next && new_end <= next->end) {
- if (!mmap_state.reserve_physical(((char *) ptr) + old_size,
+ if (!mm->reserve_physical(((char *) ptr) + old_size,
asize - old_size))
goto supercarrier_reserve_failure;
if (new_end < next->end)
- resize_free_seg(&mmap_state.sua.map, next, new_end, next->end);
+ resize_free_seg(&mm->sua.map, next, new_end, next->end);
else {
- delete_free_seg(&mmap_state.sua.map, next);
- free_desc(next);
+ delete_free_seg(&mm->sua.map, next);
+ free_desc(mm, next);
}
new_ptr = ptr;
ERTS_MMAP_SIZE_SC_SUA_INC(asize - old_size);
@@ -1968,28 +1973,28 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
}
else { /* Superaligned area */
- if (end == mmap_state.sa.top) {
- if (new_end <= mmap_state.sua.bot) {
- if (!mmap_state.reserve_physical(((char *) ptr) + old_size,
+ if (end == mm->sa.top) {
+ if (new_end <= mm->sua.bot) {
+ if (!mm->reserve_physical(((char *) ptr) + old_size,
asize - old_size))
goto supercarrier_reserve_failure;
- mmap_state.sa.top = new_end;
+ mm->sa.top = new_end;
new_ptr = ptr;
ERTS_MMAP_SIZE_SC_SA_INC(asize - old_size);
goto supercarrier_resize_success;
}
}
else {
- adjacent_free_seg(&mmap_state.sa.map, start, end, &prev, &next);
+ adjacent_free_seg(&mm->sa.map, start, end, &prev, &next);
if (next && new_end <= next->end) {
- if (!mmap_state.reserve_physical(((char *) ptr) + old_size,
+ if (!mm->reserve_physical(((char *) ptr) + old_size,
asize - old_size))
goto supercarrier_reserve_failure;
if (new_end < next->end)
- resize_free_seg(&mmap_state.sa.map, next, new_end, next->end);
+ resize_free_seg(&mm->sa.map, next, new_end, next->end);
else {
- delete_free_seg(&mmap_state.sa.map, next);
- free_desc(next);
+ delete_free_seg(&mm->sa.map, next);
+ free_desc(mm, next);
}
new_ptr = ptr;
ERTS_MMAP_SIZE_SC_SA_INC(asize - old_size);
@@ -1999,12 +2004,12 @@ erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep)
}
ERTS_MMAP_OP_ABORT();
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ erts_smp_mtx_unlock(&mm->mtx);
/* Failed to resize... */
}
- return remap_move(flags, ptr, old_size, sizep);
+ return remap_move(mm, flags, ptr, old_size, sizep);
supercarrier_resize_success:
@@ -2021,25 +2026,24 @@ supercarrier_resize_success:
#endif
ERTS_MREMAP_OP_END(new_ptr, asize);
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ erts_smp_mtx_unlock(&mm->mtx);
*sizep = asize;
return new_ptr;
supercarrier_reserve_failure:
ERTS_MREMAP_OP_END(NULL, old_size);
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ erts_smp_mtx_unlock(&mm->mtx);
*sizep = old_size;
return NULL;
}
-int erts_mmap_in_supercarrier(void *ptr)
+int erts_mmap_in_supercarrier(ErtsMemMapper* mm, void *ptr)
{
return ERTS_MMAP_IN_SUPERCARRIER(ptr);
}
-
static struct {
Eterm total;
Eterm total_sa;
@@ -2102,7 +2106,7 @@ static void hard_dbg_mseg_init(void);
#endif
void
-erts_mmap_init(ErtsMMapInit *init)
+erts_mmap_init(ErtsMemMapper* mm, ErtsMMapInit *init)
{
int virtual_map = 0;
char *start = NULL, *end = NULL;
@@ -2130,17 +2134,17 @@ erts_mmap_init(ErtsMMapInit *init)
ERTS_MMAP_OP_RINGBUF_INIT();
- mmap_state.supercarrier = 0;
- mmap_state.reserve_physical = reserve_noop;
- mmap_state.unreserve_physical = unreserve_noop;
+ mm->supercarrier = 0;
+ mm->reserve_physical = reserve_noop;
+ mm->unreserve_physical = unreserve_noop;
#if HAVE_MMAP && !defined(MAP_ANON)
- mmap_state.mmap_fd = open("/dev/zero", O_RDWR);
- if (mmap_state.mmap_fd < 0)
+ mm->mmap_fd = open("/dev/zero", O_RDWR);
+ if (mm->mmap_fd < 0)
erl_exit(-1, "erts_mmap: Failed to open /dev/zero\n");
#endif
- erts_smp_mtx_init(&mmap_state.mtx, "erts_mmap");
+ erts_smp_mtx_init(&mm->mtx, "erts_mmap");
erts_mtx_init(&am.init_mutex, "mmap_init_atoms");
#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION
@@ -2157,8 +2161,8 @@ erts_mmap_init(ErtsMMapInit *init)
sz = start - ptr;
if (sz)
os_munmap(end, sz);
- mmap_state.reserve_physical = os_reserve_physical;
- mmap_state.unreserve_physical = os_unreserve_physical;
+ mm->reserve_physical = os_reserve_physical;
+ mm->unreserve_physical = os_unreserve_physical;
virtual_map = 1;
}
else
@@ -2176,8 +2180,8 @@ erts_mmap_init(ErtsMMapInit *init)
#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION
if (!init->scrpm) {
start = os_mmap_virtual(NULL, sz);
- mmap_state.reserve_physical = os_reserve_physical;
- mmap_state.unreserve_physical = os_unreserve_physical;
+ mm->reserve_physical = os_reserve_physical;
+ mm->unreserve_physical = os_unreserve_physical;
virtual_map = 1;
}
else
@@ -2205,30 +2209,30 @@ erts_mmap_init(ErtsMMapInit *init)
}
#endif
- mmap_state.no.free_seg_descs = 0;
- mmap_state.no.free_segs.curr = 0;
- mmap_state.no.free_segs.max = 0;
+ mm->no.free_seg_descs = 0;
+ mm->no.free_segs.curr = 0;
+ mm->no.free_segs.max = 0;
- mmap_state.size.supercarrier.total = 0;
- mmap_state.size.supercarrier.used.total = 0;
- mmap_state.size.supercarrier.used.sa = 0;
- mmap_state.size.supercarrier.used.sua = 0;
- mmap_state.size.os.used = 0;
+ mm->size.supercarrier.total = 0;
+ mm->size.supercarrier.used.total = 0;
+ mm->size.supercarrier.used.sa = 0;
+ mm->size.supercarrier.used.sua = 0;
+ mm->size.os.used = 0;
- mmap_state.desc.new_area_hint = NULL;
+ mm->desc.new_area_hint = NULL;
if (!start) {
- mmap_state.sa.bot = NULL;
- mmap_state.sua.top = NULL;
- mmap_state.sa.bot = NULL;
- mmap_state.sua.top = NULL;
- mmap_state.no_os_mmap = 0;
- mmap_state.supercarrier = 0;
+ mm->sa.bot = NULL;
+ mm->sua.top = NULL;
+ mm->sa.bot = NULL;
+ mm->sua.top = NULL;
+ mm->no_os_mmap = 0;
+ mm->supercarrier = 0;
}
else {
size_t desc_size;
- mmap_state.no_os_mmap = init->sco;
+ mm->no_os_mmap = init->sco;
desc_size = init->scrfsd;
if (desc_size < 100)
@@ -2239,60 +2243,60 @@ erts_mmap_init(ErtsMMapInit *init)
+ ERTS_PAGEALIGNED_SIZE) > end - start)
erl_exit(-1, "erts_mmap: No space for segments in super carrier\n");
- mmap_state.sa.bot = start;
- 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 = end;
- mmap_state.sua.bot = mmap_state.sua.top;
+ mm->sa.bot = start;
+ mm->sa.bot += desc_size;
+ mm->sa.bot = (char *) ERTS_SUPERALIGNED_CEILING(mm->sa.bot);
+ mm->sa.top = mm->sa.bot;
+ mm->sua.top = end;
+ mm->sua.bot = mm->sua.top;
- mmap_state.size.supercarrier.used.total += (UWord) (mmap_state.sa.bot - start);
+ mm->size.supercarrier.used.total += (UWord) (mm->sa.bot - start);
- mmap_state.desc.free_list = NULL;
- mmap_state.desc.reserved = 0;
+ mm->desc.free_list = NULL;
+ mm->desc.reserved = 0;
if (end == (void *) 0) {
/*
* Very unlikely, but we need a guarantee
- * that `mmap_state.sua.top` always will
+ * that `mm->sua.top` always will
* compare as larger than all segment pointers
* into the super carrier...
*/
- mmap_state.sua.top -= ERTS_PAGEALIGNED_SIZE;
- mmap_state.size.supercarrier.used.total += ERTS_PAGEALIGNED_SIZE;
+ mm->sua.top -= ERTS_PAGEALIGNED_SIZE;
+ mm->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))
+ if (!virtual_map || os_reserve_physical(mm->sua.top, ERTS_PAGEALIGNED_SIZE))
#endif
- add_free_desc_area(mmap_state.sua.top, end);
- mmap_state.desc.reserved += (end - mmap_state.sua.top) / sizeof(ErtsFreeSegDesc);
+ add_free_desc_area(mm, mm->sua.top, end);
+ mm->desc.reserved += (end - mm->sua.top) / sizeof(ErtsFreeSegDesc);
}
- mmap_state.size.supercarrier.total = (UWord) (mmap_state.sua.top - start);
+ mm->size.supercarrier.total = (UWord) (mm->sua.top - start);
/*
* Area before (and after) super carrier
* will be used for free segment descritors.
*/
#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION
- if (virtual_map && !os_reserve_physical(start, mmap_state.sa.bot - start))
+ if (virtual_map && !os_reserve_physical(start, mm->sa.bot - start))
erl_exit(-1, "erts_mmap: Failed to reserve physical memory for descriptors\n");
#endif
- mmap_state.desc.unused_start = start;
- mmap_state.desc.unused_end = mmap_state.sa.bot;
- mmap_state.desc.reserved += ((mmap_state.desc.unused_end - start)
+ mm->desc.unused_start = start;
+ mm->desc.unused_end = mm->sa.bot;
+ mm->desc.reserved += ((mm->desc.unused_end - start)
/ sizeof(ErtsFreeSegDesc));
- init_free_seg_map(&mmap_state.sa.map, SA_SZ_ADDR_ORDER);
- init_free_seg_map(&mmap_state.sua.map, SZ_REVERSE_ADDR_ORDER);
+ init_free_seg_map(&mm->sa.map, SA_SZ_ADDR_ORDER);
+ init_free_seg_map(&mm->sua.map, SZ_REVERSE_ADDR_ORDER);
- mmap_state.supercarrier = 1;
+ mm->supercarrier = 1;
- mmap_state.desc.new_area_hint = end;
+ mm->desc.new_area_hint = end;
}
#if !ERTS_HAVE_OS_MMAP
- mmap_state.no_os_mmap = 1;
+ mm->no_os_mmap = 1;
#endif
#ifdef HARD_DEBUG_MSEG
@@ -2307,7 +2311,8 @@ add_2tup(Uint **hpp, Uint *szp, Eterm *lp, Eterm el1, Eterm el2)
*lp = erts_bld_cons(hpp, szp, erts_bld_tuple(hpp, szp, 2, el1, el2), *lp);
}
-Eterm erts_mmap_info(int *print_to_p,
+Eterm erts_mmap_info(ErtsMemMapper* mm,
+ int *print_to_p,
void *print_to_arg,
Eterm** hpp, Uint* szp,
struct erts_mmap_info_struct* emis)
@@ -2322,29 +2327,29 @@ Eterm erts_mmap_info(int *print_to_p,
Eterm res = THE_NON_VALUE;
if (!hpp) {
- erts_smp_mtx_lock(&mmap_state.mtx);
- emis->sizes[0] = mmap_state.size.supercarrier.total;
- emis->sizes[1] = mmap_state.sa.top - mmap_state.sa.bot;
- emis->sizes[2] = mmap_state.sua.top - mmap_state.sua.bot;
- emis->sizes[3] = mmap_state.size.supercarrier.used.total;
- emis->sizes[4] = mmap_state.size.supercarrier.used.sa;
- emis->sizes[5] = mmap_state.size.supercarrier.used.sua;
+ erts_smp_mtx_lock(&mm->mtx);
+ emis->sizes[0] = mm->size.supercarrier.total;
+ emis->sizes[1] = mm->sa.top - mm->sa.bot;
+ emis->sizes[2] = mm->sua.top - mm->sua.bot;
+ emis->sizes[3] = mm->size.supercarrier.used.total;
+ emis->sizes[4] = mm->size.supercarrier.used.sa;
+ emis->sizes[5] = mm->size.supercarrier.used.sua;
- emis->segs[0] = mmap_state.no.free_segs.curr;
- emis->segs[1] = mmap_state.no.free_segs.max;
- emis->segs[2] = mmap_state.no.free_seg_descs;
- emis->segs[3] = mmap_state.desc.reserved;
- emis->segs[4] = mmap_state.sa.map.nseg;
- emis->segs[5] = mmap_state.sua.map.nseg;
+ emis->segs[0] = mm->no.free_segs.curr;
+ emis->segs[1] = mm->no.free_segs.max;
+ emis->segs[2] = mm->no.free_seg_descs;
+ emis->segs[3] = mm->desc.reserved;
+ emis->segs[4] = mm->sa.map.nseg;
+ emis->segs[5] = mm->sua.map.nseg;
- emis->os_used = mmap_state.size.os.used;
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ emis->os_used = mm->size.os.used;
+ erts_smp_mtx_unlock(&mm->mtx);
}
if (print_to_p) {
int to = *print_to_p;
void *arg = print_to_arg;
- if (mmap_state.supercarrier) {
+ if (mm->supercarrier) {
const char* prefix = "supercarrier ";
erts_print(to, arg, "%stotal size: %bpu\n", prefix, emis->sizes[0]);
erts_print(to, arg, "%stotal sa size: %bpu\n", prefix, emis->sizes[1]);
@@ -2359,7 +2364,7 @@ Eterm erts_mmap_info(int *print_to_p,
erts_print(to, arg, "%ssa free segs: %bpu\n", prefix, emis->segs[4]);
erts_print(to, arg, "%ssua free segs: %bpu\n", prefix, emis->segs[5]);
}
- if (!mmap_state.no_os_mmap) {
+ if (!mm->no_os_mmap) {
erts_print(to, arg, "os mmap size used: %bpu\n", emis->os_used);
}
}
@@ -2371,7 +2376,7 @@ Eterm erts_mmap_info(int *print_to_p,
}
lix = 0;
- if (mmap_state.supercarrier) {
+ if (mm->supercarrier) {
group[0] = erts_bld_atom_uword_2tup_list(hpp, szp,
sizeof(size_tags)/sizeof(Eterm),
size_tags, emis->sizes);
@@ -2383,7 +2388,7 @@ Eterm erts_mmap_info(int *print_to_p,
lix++;
}
- if (!mmap_state.no_os_mmap) {
+ if (!mm->no_os_mmap) {
group[0] = erts_bld_atom_uword_2tup_list(hpp, szp,
1, &am.used, &emis->os_used);
list[lix] = erts_bld_2tup_list(hpp, szp, 1, group_tags, group);
@@ -2395,25 +2400,26 @@ Eterm erts_mmap_info(int *print_to_p,
return res;
}
-Eterm erts_mmap_info_options(char *prefix,
+Eterm erts_mmap_info_options(ErtsMemMapper* mm,
+ char *prefix,
int *print_to_p,
void *print_to_arg,
Uint **hpp,
Uint *szp)
{
- const UWord scs = mmap_state.sua.top - mmap_state.sa.bot;
- const Eterm sco = mmap_state.no_os_mmap ? am_true : am_false;
- const Eterm scrpm = (mmap_state.reserve_physical == reserve_noop) ? am_true : am_false;
+ const UWord scs = mm->sua.top - mm->sa.bot;
+ const Eterm sco = mm->no_os_mmap ? am_true : am_false;
+ const Eterm scrpm = (mm->reserve_physical == reserve_noop) ? am_true : am_false;
Eterm res = THE_NON_VALUE;
if (print_to_p) {
int to = *print_to_p;
void *arg = print_to_arg;
erts_print(to, arg, "%sscs: %bpu\n", prefix, scs);
- if (mmap_state.supercarrier) {
+ if (mm->supercarrier) {
erts_print(to, arg, "%ssco: %T\n", prefix, sco);
erts_print(to, arg, "%sscrpm: %T\n", prefix, scrpm);
- erts_print(to, arg, "%sscrfsd: %beu\n", prefix, mmap_state.desc.reserved);
+ erts_print(to, arg, "%sscrfsd: %beu\n", prefix, mm->desc.reserved);
}
}
@@ -2423,9 +2429,9 @@ Eterm erts_mmap_info_options(char *prefix,
}
res = NIL;
- if (mmap_state.supercarrier) {
+ if (mm->supercarrier) {
add_2tup(hpp, szp, &res, am.scrfsd,
- erts_bld_uint(hpp,szp, mmap_state.desc.reserved));
+ erts_bld_uint(hpp,szp, mm->desc.reserved));
add_2tup(hpp, szp, &res, am.scrpm, scrpm);
add_2tup(hpp, szp, &res, am.sco, sco);
}
@@ -2435,9 +2441,9 @@ Eterm erts_mmap_info_options(char *prefix,
}
-Eterm erts_mmap_debug_info(Process* p)
+Eterm erts_mmap_debug_info(ErtsMemMapper* mm, Process* p)
{
- if (mmap_state.supercarrier) {
+ if (mm->supercarrier) {
ERTS_DECL_AM(sabot);
ERTS_DECL_AM(satop);
ERTS_DECL_AM(suabot);
@@ -2448,14 +2454,14 @@ Eterm erts_mmap_debug_info(Process* p)
Eterm *hp, *hp_end;
Uint may_need;
- erts_smp_mtx_lock(&mmap_state.mtx);
- values[0] = (UWord)mmap_state.sa.bot;
- values[1] = (UWord)mmap_state.sa.top;
- values[2] = (UWord)mmap_state.sua.bot;
- values[3] = (UWord)mmap_state.sua.top;
- sa_list = build_free_seg_list(p, &mmap_state.sa.map);
- sua_list = build_free_seg_list(p, &mmap_state.sua.map);
- erts_smp_mtx_unlock(&mmap_state.mtx);
+ erts_smp_mtx_lock(&mm->mtx);
+ values[0] = (UWord)mm->sa.bot;
+ values[1] = (UWord)mm->sa.top;
+ values[2] = (UWord)mm->sua.bot;
+ values[3] = (UWord)mm->sua.top;
+ sa_list = build_free_seg_list(p, &mm->sa.map);
+ sua_list = build_free_seg_list(p, &mm->sua.map);
+ erts_smp_mtx_unlock(&mm->mtx);
may_need = 4*(2+3+2) + 2*(2+3);
hp = HAlloc(p, may_need);
diff --git a/erts/emulator/sys/common/erl_mmap.h b/erts/emulator/sys/common/erl_mmap.h
index 51f830d045..8707c23527 100644
--- a/erts/emulator/sys/common/erl_mmap.h
+++ b/erts/emulator/sys/common/erl_mmap.h
@@ -50,23 +50,26 @@ typedef struct {
#define ERTS_MMAP_INIT_DEFAULT_INITER \
{{NULL, NULL}, {NULL, NULL}, 0, 1, (1 << 16), 1}
-void *erts_mmap(Uint32 flags, UWord *sizep);
-void erts_munmap(Uint32 flags, void *ptr, UWord size);
-void *erts_mremap(Uint32 flags, void *ptr, UWord old_size, UWord *sizep);
-int erts_mmap_in_supercarrier(void *ptr);
-void erts_mmap_init(ErtsMMapInit*);
+typedef struct ErtsMemMapper_ ErtsMemMapper;
+extern ErtsMemMapper erts_dflt_mmapper;
+void *erts_mmap(ErtsMemMapper*, Uint32 flags, UWord *sizep);
+void erts_munmap(ErtsMemMapper*, Uint32 flags, void *ptr, UWord size);
+void *erts_mremap(ErtsMemMapper*, Uint32 flags, void *ptr, UWord old_size, UWord *sizep);
+int erts_mmap_in_supercarrier(ErtsMemMapper*, void *ptr);
+void erts_mmap_init(ErtsMemMapper*, ErtsMMapInit*);
struct erts_mmap_info_struct
{
UWord sizes[6];
UWord segs[6];
UWord os_used;
};
-Eterm erts_mmap_info(int *print_to_p, void *print_to_arg,
+Eterm erts_mmap_info(ErtsMemMapper*, int *print_to_p, void *print_to_arg,
Eterm** hpp, Uint* szp, struct erts_mmap_info_struct*);
-Eterm erts_mmap_info_options(char *prefix, int *print_to_p, void *print_to_arg,
+Eterm erts_mmap_info_options(ErtsMemMapper*,
+ char *prefix, int *print_to_p, void *print_to_arg,
Uint **hpp, Uint *szp);
struct process;
-Eterm erts_mmap_debug_info(struct process*);
+Eterm erts_mmap_debug_info(ErtsMemMapper*, struct process*);
#define ERTS_SUPERALIGNED_SIZE \
(1 << ERTS_MMAP_SUPERALIGNED_BITS)
diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c
index 7eb8a4a460..aadcc755c1 100644
--- a/erts/emulator/sys/common/erl_mseg.c
+++ b/erts/emulator/sys/common/erl_mseg.c
@@ -291,7 +291,7 @@ mseg_create(ErtsMsegAllctr_t *ma, Uint flags, UWord *sizep)
if (MSEG_FLG_IS_2POW(flags))
mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED;
- seg = erts_mmap(mmap_flags, sizep);
+ seg = erts_mmap(&erts_dflt_mmapper, mmap_flags, sizep);
#ifdef ERTS_PRINT_ERTS_MMAP
erts_fprintf(stderr, "%p = erts_mmap(%s, {%bpu, %bpu});\n", seg,
@@ -311,7 +311,7 @@ mseg_destroy(ErtsMsegAllctr_t *ma, Uint flags, void *seg_p, UWord size) {
if (MSEG_FLG_IS_2POW(flags))
mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED;
- erts_munmap(mmap_flags, seg_p, size);
+ erts_munmap(&erts_dflt_mmapper, mmap_flags, seg_p, size);
#ifdef ERTS_PRINT_ERTS_MMAP
erts_fprintf(stderr, "erts_munmap(%s, %p, %bpu);\n",
(mmap_flags & ERTS_MMAPFLG_SUPERALIGNED) ? "sa" : "sua",
@@ -332,7 +332,7 @@ mseg_recreate(ErtsMsegAllctr_t *ma, Uint flags, void *old_seg, UWord old_size, U
if (MSEG_FLG_IS_2POW(flags))
mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED;
- new_seg = erts_mremap(mmap_flags, old_seg, old_size, sizep);
+ new_seg = erts_mremap(&erts_dflt_mmapper, mmap_flags, old_seg, old_size, sizep);
#ifdef ERTS_PRINT_ERTS_MMAP
erts_fprintf(stderr, "%p = erts_mremap(%s, %p, %bpu, {%bpu, %bpu});\n",
@@ -997,7 +997,8 @@ info_options(ErtsMsegAllctr_t *ma,
{
Eterm res;
- res = erts_mmap_info_options(prefix, print_to_p, print_to_arg, hpp, szp);
+ res = erts_mmap_info_options(&erts_dflt_mmapper,
+ prefix, print_to_p, print_to_arg, hpp, szp);
if (print_to_p) {
int to = *print_to_p;
@@ -1401,7 +1402,7 @@ erts_mseg_init(ErtsMsegInit_t *init)
erts_mtx_init(&init_atoms_mutex, "mseg_init_atoms");
- erts_mmap_init(&init->mmap);
+ erts_mmap_init(&erts_dflt_mmapper, &init->mmap);
if (!IS_2POW(GET_PAGE_SIZE))
erl_exit(ERTS_ABORT_EXIT, "erts_mseg: Unexpected page_size %beu\n", GET_PAGE_SIZE);
--
cgit v1.2.3