Date: Wed, 29 Sep 2021 20:27:34 GMT From: Vladimir Kondratyev <wulf@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 2fe9ea5d3ad6 - main - LinuxKPI: allocate current before taking shrinkers lock Message-ID: <202109292027.18TKRYat038549@gitrepo.freebsd.org>
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The branch main has been updated by wulf: URL: https://cgit.FreeBSD.org/src/commit/?id=2fe9ea5d3ad69d880138d98b2ae8d2c4309eeafa commit 2fe9ea5d3ad69d880138d98b2ae8d2c4309eeafa Author: Vladimir Kondratyev <wulf@FreeBSD.org> AuthorDate: 2021-09-29 20:12:58 +0000 Commit: Vladimir Kondratyev <wulf@FreeBSD.org> CommitDate: 2021-09-29 20:12:58 +0000 LinuxKPI: allocate current before taking shrinkers lock This fixes following warnings when shrinkers are invoked first time: uma_zalloc_debug: zone "lkpicurr" with the following non-sleepable locks held: exclusive sleep mutex lkpi-shrinker (lkpi-shrinker) uma_zalloc_debug: zone "lkpimm" with the following non-sleepable locks held: exclusive sleep mutex lkpi-shrinker (lkpi-shrinker) Reviewed by: hselasky, manu MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D32066 --- sys/compat/linuxkpi/common/src/linux_shrinker.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/compat/linuxkpi/common/src/linux_shrinker.c b/sys/compat/linuxkpi/common/src/linux_shrinker.c index 0423f4e05804..b66316c22013 100644 --- a/sys/compat/linuxkpi/common/src/linux_shrinker.c +++ b/sys/compat/linuxkpi/common/src/linux_shrinker.c @@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$"); #include <sys/eventhandler.h> #include <sys/mutex.h> +#include <linux/compat.h> #include <linux/shrinker.h> TAILQ_HEAD(, shrinker) lkpi_shrinkers = TAILQ_HEAD_INITIALIZER(lkpi_shrinkers); @@ -93,6 +94,7 @@ linuxkpi_vm_lowmem(void *arg __unused) { struct shrinker *s; + linux_set_current(curthread); mtx_lock(&mtx_shrinker); TAILQ_FOREACH(s, &lkpi_shrinkers, next) { shrinker_shrink(s);
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