diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/util.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/util.c b/mm/util.c index 464df3489903..26be6407abd7 100644 --- a/mm/util.c +++ b/mm/util.c @@ -357,8 +357,11 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node) WARN_ON_ONCE((flags & GFP_KERNEL) != GFP_KERNEL); /* - * Make sure that larger requests are not too disruptive - no OOM - * killer and no allocation failure warnings as we have a fallback + * We want to attempt a large physically contiguous block first because + * it is less likely to fragment multiple larger blocks and therefore + * contribute to a long term fragmentation less than vmalloc fallback. + * However make sure that larger requests are not too disruptive - no + * OOM killer and no allocation failure warnings as we have a fallback. */ if (size > PAGE_SIZE) { kmalloc_flags |= __GFP_NOWARN; |