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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-13 02:48:36 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-13 02:48:36 +0300
commita312a8cc3c7fe96f5e54e69c676f5bd12995f44e (patch)
tree29e44c7ab6c59dd841bc217be0796b4cf26a7f30 /lib
parentbf57ae2165bad1cb273095a5c09708ab503cd874 (diff)
parent674b745e22b3caae48ad20422795eefd3f832a7b (diff)
downloadlinux-a312a8cc3c7fe96f5e54e69c676f5bd12995f44e.tar.xz
Merge tag 'cgroup-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo: "Nothing too interesting: - Add CONFIG_DEBUG_GROUP_REF which makes cgroup refcnt operations kprobable - A couple cpuset optimizations - Other misc changes including doc and test updates" * tag 'cgroup-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: remove rcu_read_lock()/rcu_read_unlock() in critical section of spin_lock_irq() cgroup/cpuset: Improve cpuset_css_alloc() description kselftest/cgroup: Add cleanup() to test_cpuset_prs.sh cgroup/cpuset: Optimize cpuset_attach() on v2 cgroup/cpuset: Skip spread flags update on v2 kselftest/cgroup: Fix gathering number of CPUs cgroup: cgroup refcnt functions should be exported when CONFIG_DEBUG_CGROUP_REF cgroup: Implement DEBUG_CGROUP_REF
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug10
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 3638b3424be5..13a1046a7d6f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1717,6 +1717,16 @@ config LATENCYTOP
Enable this option if you want to use the LatencyTOP tool
to find out which userspace is blocking on what kernel operations.
+config DEBUG_CGROUP_REF
+ bool "Disable inlining of cgroup css reference count functions"
+ depends on DEBUG_KERNEL
+ depends on CGROUPS
+ depends on KPROBES
+ default n
+ help
+ Force cgroup css reference count functions to not be inlined so
+ that they can be kprobed for debugging.
+
source "kernel/trace/Kconfig"
config PROVIDE_OHCI1394_DMA_INIT