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| author | Paul E. McKenney <paulmck@kernel.org> | 2021-01-07 22:46:11 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-03-08 23:18:46 +0100 |
| commit | 5bb1bb353cfe343fc3c84faf06f72ba309fde541 (patch) | |
| tree | 7a6f234b6247c3821fa2acb95c9a99e38ba24b65 /mm/util.c | |
| parent | Linux 5.12-rc2 (diff) | |
| download | linux-5bb1bb353cfe343fc3c84faf06f72ba309fde541.tar.xz linux-5bb1bb353cfe343fc3c84faf06f72ba309fde541.zip | |
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/util.c')
| -rw-r--r-- | mm/util.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/util.c b/mm/util.c index 54870226cea6..2d497fe0f17d 100644 --- a/mm/util.c +++ b/mm/util.c @@ -983,6 +983,7 @@ int __weak memcmp_pages(struct page *page1, struct page *page2) return ret; } +#ifdef CONFIG_PRINTK /** * mem_dump_obj - Print available provenance information * @object: object for which to find provenance information. @@ -1013,3 +1014,4 @@ void mem_dump_obj(void *object) } pr_cont(" non-slab/vmalloc memory.\n"); } +#endif |