linuxOS_AP05/buildroot/package/glibc/2.29-11-ge28ad442e73b00ae2047d89c8cc7f9b2a0de5436/0002-malloc-Initiate-tcache-shutdown-even-without-allocat.patch
2025-06-02 13:59:07 +08:00

42 lines
1.3 KiB
Diff

From bdf7f4ba31a35db5093a216b4527a1150ca04129 Mon Sep 17 00:00:00 2001
From: JeffyChen <jeffy.chen@rock-chips.com>
Date: Fri, 2 Jul 2021 17:39:24 +0200
Subject: [PATCH 02/19] malloc: Initiate tcache shutdown even without
allocations [BZ #28028]
After commit 1e26d35193efbb29239c710a4c46a64708643320 ("malloc: Fix
tcache leak after thread destruction [BZ #22111]"),
tcache_shutting_down is still not early enough. When we detach a
thread with no tcache allocated, tcache_shutting_down would still be
false.
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit dfec225ee1972488bb48a8b67a2c4a13010c334a)
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---
malloc/malloc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/malloc/malloc.c b/malloc/malloc.c
index feaf7ee0..3941337f 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -2959,12 +2959,13 @@ tcache_thread_shutdown (void)
int i;
tcache_perthread_struct *tcache_tmp = tcache;
+ tcache_shutting_down = true;
+
if (!tcache)
return;
/* Disable the tcache and prevent it from being reinitialized. */
tcache = NULL;
- tcache_shutting_down = true;
/* Free all of the entries and the tcache itself back to the arena
heap for coalescing. */
--
2.20.1