diff options
| author | Suren Baghdasaryan <surenb@google.com> | 2022-07-31 12:42:21 -0700 |
|---|---|---|
| committer | Suren Baghdasaryan <surenb@google.com> | 2024-03-21 00:05:21 +0000 |
| commit | 57b03e9b29611a1d1acbf1fefbae3fb313f17461 (patch) | |
| tree | 5b45302f162a978f37d0f4d51ae81210638a0d27 | |
| parent | bcf767c6744e06a84d959b48b6f3a141e66eda92 (diff) | |
lib: add codetag reference into slabobj_ext
To store code tag for every slab object, a codetag reference is embedded
into slabobj_ext when CONFIG_MEM_ALLOC_PROFILING=y.
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Co-developed-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
| -rw-r--r-- | include/linux/memcontrol.h | 5 | ||||
| -rw-r--r-- | lib/Kconfig.debug | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 7709fc3f8f5f..33cdb995751e 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1652,7 +1652,12 @@ unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, * if MEMCG_DATA_OBJEXTS is set. */ struct slabobj_ext { +#ifdef CONFIG_MEMCG_KMEM struct obj_cgroup *objcg; +#endif +#ifdef CONFIG_MEM_ALLOC_PROFILING + union codetag_ref ref; +#endif } __aligned(8); static inline void __inc_lruvec_kmem_state(void *p, enum node_stat_item idx) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index ca2c466056d5..dd44118e7337 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -979,6 +979,7 @@ config MEM_ALLOC_PROFILING depends on !DEBUG_FORCE_WEAK_PER_CPU select CODE_TAGGING select PAGE_EXTENSION + select SLAB_OBJ_EXT help Track allocation source code and record total allocation size initiated at that code location. The mechanism can be used to track |