The patch titled
Subject: lib/stackdepot: allow optional init and stack_table allocation by kvmalloc() - fixup3
has been added to the -mm tree. Its filename is
lib-stackdepot-allow-optional-init-and-stack_table-allocation-by-kvmalloc-fixup3.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/lib-stackdepot-allow-optional-init-and-stack_table-allocation-by-kvmalloc-fixup3.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/lib-stackdepot-allow-optional-init-and-stack_table-allocation-by-kvmalloc-fixup3.patch
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------------------------------------------------------
From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: lib/stackdepot: allow optional init and stack_table allocation by kvmalloc() - fixup3
Due to cd06ab2fd48f ("drm/locking: add backtrace for locking contended
locks without backoff") landing recently to -next adding a new stack depot
user in drivers/gpu/drm/drm_modeset_lock.c we need to add an appropriate
call to stack_depot_init() there as well.
Link: https://lkml.kernel.org/r/2a692365-cfa1-64f2-34e0-8aa5674dce5e@xxxxxxx
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Vijayanand Jitta <vjitta@xxxxxxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Oliver Glitta <glittao@xxxxxxxxx>
Cc: Imran Khan <imran.f.khan@xxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_modeset_lock.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/gpu/drm/drm_modeset_lock.c~lib-stackdepot-allow-optional-init-and-stack_table-allocation-by-kvmalloc-fixup3
+++ a/drivers/gpu/drm/drm_modeset_lock.c
@@ -107,6 +107,11 @@ static void __drm_stack_depot_print(depo
kfree(buf);
}
+
+static void __drm_stack_depot_init(void)
+{
+ stack_depot_init();
+}
#else /* CONFIG_DRM_DEBUG_MODESET_LOCK */
static depot_stack_handle_t __drm_stack_depot_save(void)
{
@@ -115,6 +120,9 @@ static depot_stack_handle_t __drm_stack_
static void __drm_stack_depot_print(depot_stack_handle_t stack_depot)
{
}
+static void __drm_stack_depot_init(void)
+{
+}
#endif /* CONFIG_DRM_DEBUG_MODESET_LOCK */
/**
@@ -359,6 +367,7 @@ void drm_modeset_lock_init(struct drm_mo
{
ww_mutex_init(&lock->mutex, &crtc_ww_class);
INIT_LIST_HEAD(&lock->head);
+ __drm_stack_depot_init();
}
EXPORT_SYMBOL(drm_modeset_lock_init);
_
Patches currently in -mm which might be from vbabka@xxxxxxx are
mm-slub-change-percpu-partial-accounting-from-objects-to-pages.patch
mm-slub-increase-default-cpu-partial-list-sizes.patch
lib-stackdepot-allow-optional-init-and-stack_table-allocation-by-kvmalloc.patch
lib-stackdepot-allow-optional-init-and-stack_table-allocation-by-kvmalloc-fix-2.patch
lib-stackdepot-allow-optional-init-and-stack_table-allocation-by-kvmalloc-fixup3.patch
