From bdf7f4ba31a35db5093a216b4527a1150ca04129 Mon Sep 17 00:00:00 2001 From: JeffyChen 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 (cherry picked from commit dfec225ee1972488bb48a8b67a2c4a13010c334a) Signed-off-by: Jeffy Chen --- 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