From: Hugh Dickins <hughd@google.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Nicholas Piggin <npiggin@gmail.com>,
Wu Fengguang <fengguang.wu@intel.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH] mm: fix KPF_SWAPCACHE
Date: Tue, 7 Feb 2017 11:11:16 -0800 (PST) [thread overview]
Message-ID: <alpine.LSU.2.11.1702071105360.11828@eggly.anvils> (raw)
4.10-rc1 commit 6326fec1122c ("mm: Use owner_priv bit for PageSwapCache,
valid when PageSwapBacked") aliased PG_swapcache to PG_owner_priv_1:
so /proc/kpageflags' KPF_SWAPCACHE should now be synthesized, instead
of being shown on unrelated pages which have PG_owner_priv_1 set.
Signed-off-by: Hugh Dickins <hughd@google.com>
---
fs/proc/page.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- 4.10-rc7/fs/proc/page.c 2016-12-25 18:40:50.618454962 -0800
+++ linux/fs/proc/page.c 2017-02-07 10:28:51.019640392 -0800
@@ -173,7 +173,8 @@ u64 stable_page_flags(struct page *page)
u |= kpf_copy_bit(k, KPF_ACTIVE, PG_active);
u |= kpf_copy_bit(k, KPF_RECLAIM, PG_reclaim);
- u |= kpf_copy_bit(k, KPF_SWAPCACHE, PG_swapcache);
+ if (PageSwapCache(page))
+ u |= 1 << KPF_SWAPCACHE;
u |= kpf_copy_bit(k, KPF_SWAPBACKED, PG_swapbacked);
u |= kpf_copy_bit(k, KPF_UNEVICTABLE, PG_unevictable);
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next reply other threads:[~2017-02-07 19:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-07 19:11 Hugh Dickins [this message]
2017-02-09 4:20 ` Nicholas Piggin
2017-02-09 4:50 ` Hugh Dickins
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.LSU.2.11.1702071105360.11828@eggly.anvils \
--to=hughd@google.com \
--cc=akpm@linux-foundation.org \
--cc=fengguang.wu@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=npiggin@gmail.com \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox