From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
Johannes Weiner <hannes@cmpxchg.org>,
Minchan Kim <minchan@kernel.org>,
Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
Zhang Yanfei <zhangyanfei@cn.fujitsu.com>,
"Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>,
Tang Chen <tangchen@cn.fujitsu.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Wen Congyang <wency@cn.fujitsu.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Michal Nazarewicz <mina86@mina86.com>,
Laura Abbott <lauraa@codeaurora.org>,
Heesub Shin <heesub.shin@samsung.com>,
Ritesh Harjani <ritesh.list@gmail.com>,
t.stanislaws@samsung.com, Gioh Kim <gioh.kim@lge.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/8] mm/isolation: remove unstable check for isolated page
Date: Mon, 11 Aug 2014 14:53:35 +0530 [thread overview]
Message-ID: <87a97b5qi0.fsf@linux.vnet.ibm.com> (raw)
In-Reply-To: <1407309517-3270-4-git-send-email-iamjoonsoo.kim@lge.com>
Joonsoo Kim <iamjoonsoo.kim@lge.com> writes:
> The check '!PageBuddy(page) && page_count(page) == 0 &&
> migratetype == MIGRATE_ISOLATE' would mean the page on free processing.
> Although it could go into buddy allocator within a short time,
> futher operation such as isolate_freepages_range() in CMA, called after
> test_page_isolated_in_pageblock(), could be failed due to this unstability
> since it requires that the page is on buddy. I think that removing
> this unstability is good thing.
Is that true in case of check_pages_isolated_cb ? Does that require
PageBuddy to be true ?
>
> And, following patch makes isolated freepage has new status matched with
> this condition and this check is the obstacle to that change. So remove
> it.
Can you quote the patch summary in the above case ? ie, something like
And the followiing patch "mm/....." makes isolate freepage.
-aneesh
--
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 prev parent reply other threads:[~2014-08-11 9:23 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-06 7:18 [PATCH v2 0/8] fix freepage count problems in memory isolation Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 1/8] mm/page_alloc: correct to clear guard attribute in DEBUG_PAGEALLOC Joonsoo Kim
2014-08-07 1:46 ` Zhang Yanfei
2014-08-06 7:18 ` [PATCH v2 1/8] mm/page_alloc: fix pcp high, batch management Joonsoo Kim
2014-08-12 1:24 ` Minchan Kim
2014-08-13 8:13 ` Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 2/8] mm/isolation: remove unstable check for isolated page Joonsoo Kim
2014-08-07 13:49 ` Vlastimil Babka
2014-08-08 6:22 ` Joonsoo Kim
2014-08-11 9:23 ` Aneesh Kumar K.V [this message]
2014-08-13 8:19 ` Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 2/8] mm/page_alloc: correct to clear guard attribute in DEBUG_PAGEALLOC Joonsoo Kim
2014-08-12 1:45 ` Minchan Kim
2014-08-13 8:20 ` Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 3/8] mm/isolation: remove unstable check for isolated page Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 3/8] mm/page_alloc: fix pcp high, batch management Joonsoo Kim
2014-08-07 2:11 ` Zhang Yanfei
2014-08-07 8:23 ` Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 4/8] mm/isolation: close the two race problems related to pageblock isolation Joonsoo Kim
2014-08-07 14:34 ` Vlastimil Babka
2014-08-08 6:30 ` Joonsoo Kim
2014-08-12 5:17 ` Minchan Kim
2014-08-12 9:45 ` Vlastimil Babka
2014-08-13 8:09 ` Joonsoo Kim
2014-08-13 8:29 ` Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 5/8] mm/isolation: change pageblock isolation logic to fix freepage counting bugs Joonsoo Kim
2014-08-06 15:12 ` Vlastimil Babka
2014-08-07 8:19 ` Joonsoo Kim
2014-08-07 8:53 ` Vlastimil Babka
2014-08-07 12:26 ` Joonsoo Kim
2014-08-07 13:04 ` Vlastimil Babka
2014-08-07 13:35 ` Joonsoo Kim
2014-08-07 15:15 ` Vlastimil Babka
2014-08-08 6:45 ` Joonsoo Kim
2014-08-12 6:43 ` Minchan Kim
2014-08-12 10:58 ` Vlastimil Babka
2014-08-06 7:18 ` [PATCH v2 6/8] mm/isolation: factor out pre/post logic on set/unset_migratetype_isolate() Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 7/8] mm/isolation: fix freepage counting bug on start/undo_isolat_page_range() Joonsoo Kim
2014-08-06 7:18 ` [PATCH v2 8/8] mm/isolation: remove useless race handling related to pageblock isolation Joonsoo Kim
2014-08-06 7:25 ` [PATCH v2 0/8] fix freepage count problems in memory isolation Joonsoo Kim
2014-08-07 0:49 ` Zhang Yanfei
2014-08-07 8:20 ` Joonsoo Kim
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=87a97b5qi0.fsf@linux.vnet.ibm.com \
--to=aneesh.kumar@linux.vnet.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=b.zolnierkie@samsung.com \
--cc=gioh.kim@lge.com \
--cc=hannes@cmpxchg.org \
--cc=heesub.shin@samsung.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=isimatu.yasuaki@jp.fujitsu.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=lauraa@codeaurora.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=m.szyprowski@samsung.com \
--cc=mgorman@suse.de \
--cc=mina86@mina86.com \
--cc=minchan@kernel.org \
--cc=n-horiguchi@ah.jp.nec.com \
--cc=riel@redhat.com \
--cc=ritesh.list@gmail.com \
--cc=srivatsa.bhat@linux.vnet.ibm.com \
--cc=t.stanislaws@samsung.com \
--cc=tangchen@cn.fujitsu.com \
--cc=wency@cn.fujitsu.com \
--cc=zhangyanfei@cn.fujitsu.com \
/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;
as well as URLs for NNTP newsgroup(s).