Re: [RFC v2 PATCH 4/4] mm: pre zero out free pages to speed up page allocation for __GFP_ZERO
From: Dave Hansen <hidden>
Date: 2021-01-04 19:19:57
Also in:
linux-mm, lkml
On 12/21/20 8:30 AM, Liang Li wrote:
quoted hunk
--- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h@@ -137,6 +137,9 @@ enum pageflags { #endif #ifdef CONFIG_64BIT PG_arch_2, +#endif +#ifdef CONFIG_PREZERO_PAGE + PG_zero, #endif __NR_PAGEFLAGS,
I don't think this is worth a generic page->flags bit. There's a ton of space in 'struct page' for pages that are in the allocator. Can't we use some of that space? _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization