diff options
| author | Suren Baghdasaryan <surenb@google.com> | 2022-07-31 12:42:21 -0700 |
|---|---|---|
| committer | Suren Baghdasaryan <surenb@google.com> | 2023-03-13 15:11:34 +0000 |
| commit | 8ea8ea31e78ea5dcbdfe454bb4a3c20437f37716 (patch) | |
| tree | 49c658145f89d1d383af2b34711f8afe7e0472e5 | |
| parent | 3aa9da28aaa5a1c8fe328928005b54db492e928b (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>
| -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 c3c23eadf389..2618de955e34 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1598,7 +1598,12 @@ 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 1bada65d7774..5fc17feb7f6d 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1020,6 +1020,7 @@ config MEM_ALLOC_PROFILING select CODE_TAGGING select LAZY_PERCPU_COUNTER 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 |