diff --git a/include/jemalloc/internal/arena_inlines_b.h b/include/jemalloc/internal/arena_inlines_b.h
index 917a4916..a6135ee7 100644
--- a/include/jemalloc/internal/arena_inlines_b.h
+++ b/include/jemalloc/internal/arena_inlines_b.h
@@ -8,6 +8,12 @@
 #include "jemalloc/internal/sz.h"
 #include "jemalloc/internal/ticker.h"
 
+static inline arena_t *
+arena_get_from_extent(extent_t *extent) {
+	return (arena_t *)atomic_load_p(&arenas[extent_arena_ind_get(extent)],
+	    ATOMIC_RELAXED);
+}
+
 JEMALLOC_ALWAYS_INLINE bool
 arena_has_default_hooks(arena_t *arena) {
 	return (extent_hooks_get(arena) == &extent_hooks_default);
diff --git a/src/arena.c b/src/arena.c
index 37f4b556..e096f3a6 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -1565,8 +1565,7 @@ arena_prof_promote(tsdn_t *tsdn, void *ptr, size_t usize) {
 
 	extent_t *extent = rtree_extent_read(tsdn, &extents_rtree, rtree_ctx,
 	    (uintptr_t)ptr, true);
-	arena_t *arena = atomic_load_p(&arenas[extent_arena_ind_get(extent)],
-	    ATOMIC_RELAXED);
+	arena_t *arena = arena_get_from_extent(extent);
 
 	szind_t szind = sz_size2index(usize);
 	extent_szind_set(extent, szind);
@@ -1731,8 +1730,7 @@ arena_dalloc_bin(tsdn_t *tsdn, arena_t *arena, extent_t *extent, void *ptr) {
 void
 arena_dalloc_small(tsdn_t *tsdn, void *ptr) {
 	extent_t *extent = iealloc(tsdn, ptr);
-	arena_t *arena = atomic_load_p(&arenas[extent_arena_ind_get(extent)],
-	    ATOMIC_RELAXED);
+	arena_t *arena = arena_get_from_extent(extent);
 
 	arena_dalloc_bin(tsdn, arena, extent, ptr);
 	arena_decay_tick(tsdn, arena);
@@ -1768,8 +1766,7 @@ arena_ralloc_no_move(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size,
 			goto done;
 		}
 
-		arena_t *arena = atomic_load_p(
-		    &arenas[extent_arena_ind_get(extent)], ATOMIC_RELAXED);
+		arena_t *arena = arena_get_from_extent(extent);
 		arena_decay_tick(tsdn, arena);
 		ret = false;
 	} else if (oldsize >= SC_LARGE_MINCLASS
diff --git a/src/ctl.c b/src/ctl.c
index a29be194..6bd534a7 100644
--- a/src/ctl.c
+++ b/src/ctl.c
@@ -2612,8 +2612,7 @@ arenas_lookup_ctl(tsd_t *tsd, const size_t *mib,
 	if (extent == NULL)
 		goto label_return;
 
-	arena = atomic_load_p(&arenas[extent_arena_ind_get(extent)],
-	    ATOMIC_RELAXED);
+	arena = arena_get_from_extent(extent);
 	if (arena == NULL)
 		goto label_return;
 
diff --git a/src/large.c b/src/large.c
index 40afa623..13d8e56c 100644
--- a/src/large.c
+++ b/src/large.c
@@ -94,8 +94,7 @@ large_dalloc_maybe_junk_t *JET_MUTABLE large_dalloc_maybe_junk =
 
 static bool
 large_ralloc_no_move_shrink(tsdn_t *tsdn, extent_t *extent, size_t usize) {
-	arena_t *arena = atomic_load_p(&arenas[extent_arena_ind_get(extent)],
-	    ATOMIC_RELAXED);
+	arena_t *arena = arena_get_from_extent(extent);
 	size_t oldusize = extent_usize_get(extent);
 	extent_hooks_t *extent_hooks = extent_hooks_get(arena);
 	size_t diff = extent_size_get(extent) - (usize + sz_large_pad);
@@ -131,8 +130,7 @@ large_ralloc_no_move_shrink(tsdn_t *tsdn, extent_t *extent, size_t usize) {
 static bool
 large_ralloc_no_move_expand(tsdn_t *tsdn, extent_t *extent, size_t usize,
     bool zero) {
-	arena_t *arena = atomic_load_p(&arenas[extent_arena_ind_get(extent)],
-	    ATOMIC_RELAXED);
+	arena_t *arena = arena_get_from_extent(extent);
 	size_t oldusize = extent_usize_get(extent);
 	extent_hooks_t *extent_hooks = extent_hooks_get(arena);
 	size_t trailsize = usize - oldusize;
@@ -232,18 +230,14 @@ large_ralloc_no_move(tsdn_t *tsdn, extent_t *extent, size_t usize_min,
 		/* Attempt to expand the allocation in-place. */
 		if (!large_ralloc_no_move_expand(tsdn, extent, usize_max,
 		    zero)) {
-			arena_decay_tick(tsdn,
-			    atomic_load_p(&arenas[extent_arena_ind_get(extent)],
-			    ATOMIC_RELAXED));
+			arena_decay_tick(tsdn, arena_get_from_extent(extent));
 			return false;
 		}
 		/* Try again, this time with usize_min. */
 		if (usize_min < usize_max && usize_min > oldusize &&
 		    large_ralloc_no_move_expand(tsdn, extent, usize_min,
 		    zero)) {
-			arena_decay_tick(tsdn, atomic_load_p(
-			    &arenas[extent_arena_ind_get(extent)],
-			    ATOMIC_RELAXED));
+			arena_decay_tick(tsdn, arena_get_from_extent(extent));
 			return false;
 		}
 	}
@@ -253,17 +247,14 @@ large_ralloc_no_move(tsdn_t *tsdn, extent_t *extent, size_t usize_min,
 	 * the new size.
 	 */
 	if (oldusize >= usize_min && oldusize <= usize_max) {
-		arena_decay_tick(tsdn, atomic_load_p(
-		    &arenas[extent_arena_ind_get(extent)], ATOMIC_RELAXED));
+		arena_decay_tick(tsdn, arena_get_from_extent(extent));
 		return false;
 	}
 
 	/* Attempt to shrink the allocation in-place. */
 	if (oldusize > usize_max) {
 		if (!large_ralloc_no_move_shrink(tsdn, extent, usize_max)) {
-			arena_decay_tick(tsdn, atomic_load_p(
-			    &arenas[extent_arena_ind_get(extent)],
-			    ATOMIC_RELAXED));
+			arena_decay_tick(tsdn, arena_get_from_extent(extent));
 			return false;
 		}
 	}
@@ -357,20 +348,18 @@ large_dalloc_finish_impl(tsdn_t *tsdn, arena_t *arena, extent_t *extent) {
 
 void
 large_dalloc_prep_junked_locked(tsdn_t *tsdn, extent_t *extent) {
-	large_dalloc_prep_impl(tsdn, atomic_load_p(
-	    &arenas[extent_arena_ind_get(extent)], ATOMIC_RELAXED), extent, true);
+	large_dalloc_prep_impl(tsdn, arena_get_from_extent(extent), extent,
+	    true);
 }
 
 void
 large_dalloc_finish(tsdn_t *tsdn, extent_t *extent) {
-	large_dalloc_finish_impl(tsdn, atomic_load_p(
-	    &arenas[extent_arena_ind_get(extent)], ATOMIC_RELAXED), extent);
+	large_dalloc_finish_impl(tsdn, arena_get_from_extent(extent), extent);
 }
 
 void
 large_dalloc(tsdn_t *tsdn, extent_t *extent) {
-	arena_t *arena = atomic_load_p(
-	    &arenas[extent_arena_ind_get(extent)], ATOMIC_RELAXED);
+	arena_t *arena = arena_get_from_extent(extent);
 	large_dalloc_prep_impl(tsdn, arena, extent, false);
 	large_dalloc_finish_impl(tsdn, arena, extent);
 	arena_decay_tick(tsdn, arena);