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authorVladimir Kondratyev <wulf@FreeBSD.org>2021-09-29 20:12:58 +0000
committerVladimir Kondratyev <wulf@FreeBSD.org>2021-10-13 09:00:17 +0000
commitc1daa6fa4ca53206908777f2f9e17ea7ddd7d295 (patch)
treed8d16074fb035c7278890d59efc9a966196eb4d4
parent2c26756366c407354535b00dc0a2cde6f34e991f (diff)
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 Differential revision: https://reviews.freebsd.org/D32066 (cherry picked from commit 2fe9ea5d3ad69d880138d98b2ae8d2c4309eeafa)
-rw-r--r--sys/compat/linuxkpi/common/src/linux_shrinker.c2
1 files changed, 2 insertions, 0 deletions
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);