[PATCH] mm: memcontrol: fix compilation
From: Bert Karwatzki <hidden>
Date: 2026-09-07 14:14:28
Also in:
linux-mm, linux-next, lkml
Subsystem:
control group - memory resource controller (memcg), memory management, the rest · Maintainers:
Johannes Weiner, Michal Hocko, Roman Gushchin, Shakeel Butt, Andrew Morton, Linus Torvalds
Signed-off-by: Bert Karwatzki <redacted> --- mm/memcontrol.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 5b9e0ebd42ae..e50135df6e82 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c@@ -71,6 +71,7 @@ #include "memcontrol-v1.h" #include <linux/uaccess.h> +#include <linux/irq_work.h> #define CREATE_TRACE_POINTS #include <trace/events/memcg.h>
--
2.55.0
In next-20260904 compilation fails with this error:
mm/memcontrol.c: In function ‘try_charge_memcg’:
mm/memcontrol.c:2859:41: error: implicit declaration of function ‘irq_work_queue’; did you mean ‘drain_workqueue’? [-Wimplicit-function-declaration]
2859 | irq_work_queue(&memcg->high_irq_work);
| ^~~~~~~~~~~~~~
| drain_workqueue
CC [M] drivers/usb/typec/ucsi/ucsi.o
CC [M] drivers/usb/typec/tipd/core.o
mm/memcontrol.c: In function ‘mem_cgroup_alloc’:
mm/memcontrol.c:4234:9: error: implicit declaration of function ‘init_irq_work’; did you mean ‘init_irq_proc’? [-Wimplicit-function-declaration]
4234 | init_irq_work(&memcg->high_irq_work, high_irq_work_func);
| ^~~~~~~~~~~~~
| init_irq_proc
CC [M] drivers/net/wireless/mediatek/mt76/mt792x_acpi_sar.o
mm/memcontrol.c: In function ‘mem_cgroup_css_free’:
mm/memcontrol.c:4443:9: error: implicit declaration of function ‘irq_work_sync’ [-Wimplicit-function-declaration]
4443 | irq_work_sync(&memcg->high_irq_work);
| ^~~~~~~~~~~~~
explicitly including include/linux/irq_work.h fixes the issue.
Bert Karwatzki