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