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-rw-r--r--include/jemalloc/internal/arena_externs.h2
-rw-r--r--include/jemalloc/internal/arena_structs_b.h5
-rw-r--r--include/jemalloc/internal/extent_types.h2
3 files changed, 9 insertions, 0 deletions
diff --git a/include/jemalloc/internal/arena_externs.h b/include/jemalloc/internal/arena_externs.h
index 4e546c3b..5a0e3add 100644
--- a/include/jemalloc/internal/arena_externs.h
+++ b/include/jemalloc/internal/arena_externs.h
@@ -77,6 +77,8 @@ ssize_t arena_dirty_decay_ms_default_get(void);
bool arena_dirty_decay_ms_default_set(ssize_t decay_ms);
ssize_t arena_muzzy_decay_ms_default_get(void);
bool arena_muzzy_decay_ms_default_set(ssize_t decay_ms);
+bool arena_retain_grow_limit_get_set(tsd_t *tsd, arena_t *arena,
+ size_t *old_limit, size_t *new_limit);
unsigned arena_nthreads_get(arena_t *arena, bool internal);
void arena_nthreads_inc(arena_t *arena, bool internal);
void arena_nthreads_dec(arena_t *arena, bool internal);
diff --git a/include/jemalloc/internal/arena_structs_b.h b/include/jemalloc/internal/arena_structs_b.h
index c4e4310d..f74ea97d 100644
--- a/include/jemalloc/internal/arena_structs_b.h
+++ b/include/jemalloc/internal/arena_structs_b.h
@@ -240,9 +240,14 @@ struct arena_s {
* be effective even if multiple arenas' extent allocation requests are
* highly interleaved.
*
+ * retain_grow_limit is the max allowed size ind to expand (unless the
+ * required size is greater). Default is no limit, and controlled
+ * through mallctl only.
+ *
* Synchronization: extent_grow_mtx
*/
pszind_t extent_grow_next;
+ pszind_t retain_grow_limit;
malloc_mutex_t extent_grow_mtx;
/*
diff --git a/include/jemalloc/internal/extent_types.h b/include/jemalloc/internal/extent_types.h
index b6905ce1..7efcd3a4 100644
--- a/include/jemalloc/internal/extent_types.h
+++ b/include/jemalloc/internal/extent_types.h
@@ -6,4 +6,6 @@ typedef struct extents_s extents_t;
#define EXTENT_HOOKS_INITIALIZER NULL
+#define EXTENT_GROW_MAX_PIND (NPSIZES - 1)
+
#endif /* JEMALLOC_INTERNAL_EXTENT_TYPES_H */