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-rw-r--r--erts/emulator/beam/beam_bif_load.c78
-rw-r--r--erts/emulator/beam/erl_alloc.types1
-rw-r--r--erts/emulator/beam/global.h7
3 files changed, 66 insertions, 20 deletions
diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c
index 2413ccdba9..9e4176752a 100644
--- a/erts/emulator/beam/beam_bif_load.c
+++ b/erts/emulator/beam/beam_bif_load.c
@@ -53,7 +53,10 @@ static struct {
Process *erts_code_purger = NULL;
-ErtsLiteralArea *erts_copy_literal_area = NULL;
+erts_smp_atomic_t erts_copy_literal_area__;
+#define ERTS_SET_COPY_LITERAL_AREA(LA) \
+ erts_smp_atomic_set_nob(&erts_copy_literal_area__, \
+ (erts_aint_t) (LA))
#ifdef ERTS_NEW_PURGE_STRATEGY
Process *erts_literal_area_collector = NULL;
@@ -105,6 +108,8 @@ erts_beam_bif_load_init(void)
release_literal_areas.first = NULL;
release_literal_areas.last = NULL;
#endif
+ erts_smp_atomic_init_nob(&erts_copy_literal_area__,
+ (erts_aint_t) NULL);
init_purge_state();
}
@@ -849,7 +854,7 @@ erts_proc_copy_literal_area(Process *c_p, int *redsp, int fcalls, int gc_allowed
Uint lit_bsize;
ErlHeapFragment *hfrag;
- la = erts_copy_literal_area;
+ la = ERTS_COPY_LITERAL_AREA();
if (!la)
return am_ok;
@@ -1438,16 +1443,33 @@ hfrag_literal_copy(Eterm **hpp, ErlOffHeap *ohp,
#ifdef ERTS_NEW_PURGE_STRATEGY
+#ifdef ERTS_SMP
+
ErtsThrPrgrLaterOp later_literal_area_switch;
-#ifdef ERTS_SMP
+typedef struct {
+ ErtsThrPrgrLaterOp lop;
+ ErtsLiteralArea *la;
+} ErtsLaterReleasLiteralArea;
+
+static void
+later_release_literal_area(void *vlrlap)
+{
+ ErtsLaterReleasLiteralArea *lrlap;
+ lrlap = (ErtsLaterReleasLiteralArea *) vlrlap;
+ erts_release_literal_area(lrlap->la);
+ erts_free(ERTS_ALC_T_RELEASE_LAREA, vlrlap);
+}
+
static void
-complete_literal_area_switch(void *unused)
+complete_literal_area_switch(void *literal_area)
{
Process *p = erts_literal_area_collector;
erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
erts_resume(p, ERTS_PROC_LOCK_STATUS);
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ if (literal_area)
+ erts_release_literal_area((ErtsLiteralArea *) literal_area);
}
#endif
@@ -1458,6 +1480,7 @@ BIF_RETTYPE erts_internal_release_literal_area_switch_0(BIF_ALIST_0)
#ifndef ERTS_NEW_PURGE_STRATEGY
BIF_ERROR(BIF_P, EXC_NOTSUP);
#else
+ ErtsLiteralArea *unused_la;
ErtsLiteralAreaRef *la_ref;
if (BIF_P != erts_literal_area_collector)
@@ -1474,26 +1497,45 @@ BIF_RETTYPE erts_internal_release_literal_area_switch_0(BIF_ALIST_0)
erts_smp_mtx_unlock(&release_literal_areas.mtx);
- if (erts_copy_literal_area)
- erts_release_literal_area(erts_copy_literal_area);
+ unused_la = ERTS_COPY_LITERAL_AREA();
if (!la_ref) {
- erts_copy_literal_area = NULL;
+ ERTS_SET_COPY_LITERAL_AREA(NULL);
+ if (unused_la) {
+#ifdef ERTS_SMP
+ ErtsLaterReleasLiteralArea *lrlap;
+ lrlap = erts_alloc(ERTS_ALC_T_RELEASE_LAREA,
+ sizeof(ErtsLaterReleasLiteralArea));
+ lrlap->la = unused_la;
+ erts_schedule_thr_prgr_later_cleanup_op(
+ later_release_literal_area,
+ (void *) lrlap,
+ &lrlap->lop,
+ (sizeof(ErtsLaterReleasLiteralArea)
+ + sizeof(ErtsLiteralArea)
+ + ((unused_la->end
+ - &unused_la->start[0])
+ - 1)*(sizeof(Eterm))));
+#else
+ erts_release_literal_area(unused_la);
+#endif
+ }
BIF_RET(am_false);
}
- erts_copy_literal_area = la_ref->literal_area;
+ ERTS_SET_COPY_LITERAL_AREA(la_ref->literal_area);
erts_free(ERTS_ALC_T_LITERAL_REF, la_ref);
-#ifndef ERTS_SMP
- BIF_RET(am_true);
-#else
+#ifdef ERTS_SMP
erts_schedule_thr_prgr_later_op(complete_literal_area_switch,
- NULL,
+ unused_la,
&later_literal_area_switch);
erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, NULL);
ERTS_BIF_YIELD_RETURN(BIF_P, am_true);
+#else
+ erts_release_literal_area(unused_la);
+ BIF_RET(am_true);
#endif
#endif /* ERTS_NEW_PURGE_STRATEGY */
@@ -1675,8 +1717,8 @@ BIF_RETTYPE erts_internal_purge_module_2(BIF_ALIST_2)
end = (BeamInstr *)((char *)code + modp->old.code_length);
erts_fun_purge_prepare(code, end);
#if !defined(ERTS_NEW_PURGE_STRATEGY)
- ASSERT(!erts_copy_literal_area);
- erts_copy_literal_area = modp->old.code_hdr->literal_area;
+ ASSERT(!ERTS_COPY_LITERAL_AREA());
+ ERTS_SET_COPY_LITERAL_AREA(modp->old.code_hdr->literal_area);
#endif
}
erts_runlock_old_code(code_ix);
@@ -1718,8 +1760,8 @@ BIF_RETTYPE erts_internal_purge_module_2(BIF_ALIST_2)
erts_fun_purge_abort_prepare(purge_state.funs, purge_state.fe_ix);
#if !defined(ERTS_NEW_PURGE_STRATEGY)
- ASSERT(erts_copy_literal_area);
- erts_copy_literal_area = NULL;
+ ASSERT(ERTS_COPY_LITERAL_AREA());
+ ERTS_SET_COPY_LITERAL_AREA(NULL);
#endif
#ifndef ERTS_SMP
erts_fun_purge_abort_finalize(purge_state.funs, purge_state.fe_ix);
@@ -1831,8 +1873,8 @@ BIF_RETTYPE erts_internal_purge_module_2(BIF_ALIST_2)
#if !defined(ERTS_NEW_PURGE_STRATEGY)
- ASSERT(erts_copy_literal_area == literals);
- erts_copy_literal_area = NULL;
+ ASSERT(ERTS_COPY_LITERAL_AREA() == literals);
+ ERTS_SET_COPY_LITERAL_AREA(NULL);
erts_release_literal_area(literals);
#else /* ERTS_NEW_PURGE_STRATEGY */
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index 1b72a0cb59..d51086aa32 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -313,6 +313,7 @@ type RUNQ_BLNS LONG_LIVED SYSTEM run_queue_balancing
type THR_PRGR_IDATA LONG_LIVED SYSTEM thr_prgr_internal_data
type THR_PRGR_DATA LONG_LIVED SYSTEM thr_prgr_data
type T_THR_PRGR_DATA SHORT_LIVED SYSTEM temp_thr_prgr_data
+type RELEASE_LAREA SHORT_LIVED SYSTEM release_literal_area
+endif
#
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 00dfc421d5..76e6be5443 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -1014,7 +1014,10 @@ typedef struct ErtsLiteralArea_ {
#define ERTS_LITERAL_AREA_ALLOC_SIZE(N) \
(sizeof(ErtsLiteralArea) + sizeof(Eterm)*((N) - 1))
-extern ErtsLiteralArea *erts_copy_literal_area;
+extern erts_smp_atomic_t erts_copy_literal_area__;
+#define ERTS_COPY_LITERAL_AREA() \
+ ((ErtsLiteralArea *) erts_smp_atomic_read_nob(&erts_copy_literal_area__))
+
#ifdef ERTS_NEW_PURGE_STRATEGY
extern Process *erts_literal_area_collector;
#endif
@@ -1102,7 +1105,7 @@ typedef struct {
#define INITIALIZE_SHCOPY(info) \
do { \
- ErtsLiteralArea *larea__ = erts_copy_literal_area; \
+ ErtsLiteralArea *larea__ = ERTS_COPY_LITERAL_AREA();\
info.queue_start = info.queue_default; \
info.bitstore_start = info.bitstore_default; \
info.shtable_start = info.shtable_default; \
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 09:38:11 +0000