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linux/kernel/cgroup
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gaoxu 91fe35809e cgroup: Fix compilation issue due to cgroup_mutex not being exported 
[ Upstream commit 87c259a7a3 ]

When adding folio_memcg function call in the zram module for
Android16-6.12, the following error occurs during compilation:
ERROR: modpost: "cgroup_mutex" [../soc-repo/zram.ko] undefined!

This error is caused by the indirect call to lockdep_is_held(&cgroup_mutex)
within folio_memcg. The export setting for cgroup_mutex is controlled by
the CONFIG_PROVE_RCU macro. If CONFIG_LOCKDEP is enabled while
CONFIG_PROVE_RCU is not, this compilation error will occur.

To resolve this issue, add a parallel macro CONFIG_LOCKDEP control to
ensure cgroup_mutex is properly exported when needed.

Signed-off-by: gao xu <gaoxu2@honor.com>
Acked-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-06-04 14:40:01 +02:00
..
cgroup-internal.h cgroup: Make operations on the cgroup root_list RCU safe 2024-08-19 06:00:06 +02:00
cgroup-v1.c kernfs: Convert kernfs_path_from_node_locked() from strlcpy() to strscpy() 2024-08-03 08:48:54 +02:00
cgroup.c cgroup: Fix compilation issue due to cgroup_mutex not being exported 2025-06-04 14:40:01 +02:00
cpuset.c cgroup/cpuset: Prevent UAF in proc_cpuset_show() 2024-08-03 08:48:54 +02:00
debug.c kernel: cgroup: fix misuse of %x 2019-05-06 08:47:48 -07:00
freezer.c cgroup: cleanup comments 2022-03-13 19:19:27 -10:00
legacy_freezer.c cgroup_freezer: cgroup_freezing: Check if not frozen 2023-12-13 18:39:19 +01:00
Makefile cgroup: Add misc cgroup controller 2021-04-04 13:34:46 -04:00
misc.c misc_cgroup: remove error log to avoid log flood 2021-09-20 07:35:38 -10:00
namespace.c cgroup:namespace: Remove unused cgroup_namespaces_init() 2023-09-13 09:42:56 +02:00
pids.c cgroup: add pids.peak interface for pids controller 2022-09-04 09:26:51 -10:00
rdma.c cgroup: fix spelling mistakes 2021-05-24 12:45:26 -04:00
rstat.c cgroup: Remove steal time from usage_usec 2025-02-21 13:49:57 +01:00