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| author | Paul E. McKenney <paulmck@kernel.org> | 2021-01-07 13:46:11 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-03-08 14:18:46 -0800 |
| commit | 5bb1bb353cfe343fc3c84faf06f72ba309fde541 (patch) | |
| tree | 7a6f234b6247c3821fa2acb95c9a99e38ba24b65 /mm/slab.h | |
| parent | a38fd8748464831584a19438cbb3082b5a2dab15 (diff) | |
| download | linux-next-5bb1bb353cfe343fc3c84faf06f72ba309fde541.tar.gz | |
mm: Don't build mm_dump_obj() on CONFIG_PRINTK=n kernels
The mem_dump_obj() functionality adds a few hundred bytes, which is a
small price to pay. Except on kernels built with CONFIG_PRINTK=n, in
which mem_dump_obj() messages will be suppressed. This commit therefore
makes mem_dump_obj() be a static inline empty function on kernels built
with CONFIG_PRINTK=n and excludes all of its support functions as well.
This avoids kernel bloat on systems that cannot use mem_dump_obj().
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <linux-mm@kvack.org>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'mm/slab.h')
| -rw-r--r-- | mm/slab.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/slab.h b/mm/slab.h index 076582f58f68..120b1d0dfb6d 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -619,6 +619,7 @@ static inline bool slab_want_init_on_free(struct kmem_cache *c) return false; } +#ifdef CONFIG_PRINTK #define KS_ADDRS_COUNT 16 struct kmem_obj_info { void *kp_ptr; @@ -630,5 +631,6 @@ struct kmem_obj_info { void *kp_stack[KS_ADDRS_COUNT]; }; void kmem_obj_info(struct kmem_obj_info *kpp, void *object, struct page *page); +#endif #endif /* MM_SLAB_H */ |