From: Vlastimil Babka <vbabka@suse.cz>
To: Michal Hocko <mhocko@kernel.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org
Subject: Re: [PATCH] mm: make sure isolate_lru_page() is never called for tail page
Date: Tue, 22 Dec 2015 16:57:51 +0100 [thread overview]
Message-ID: <567972FF.4090408@suse.cz> (raw)
In-Reply-To: <20151216144749.GB23092@dhcp22.suse.cz>
On 12/16/2015 03:47 PM, Michal Hocko wrote:
> On Wed 16-12-15 16:29:30, Kirill A. Shutemov wrote:
>> The VM_BUG_ON_PAGE() would catch such cases if any still exists.
>
> Thanks, this better than a silent breakage.
>
>> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
>
> Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
>
>> ---
>> mm/vmscan.c | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/mm/vmscan.c b/mm/vmscan.c
>> index 964390906167..05dd182f04fd 100644
>> --- a/mm/vmscan.c
>> +++ b/mm/vmscan.c
>> @@ -1436,6 +1436,7 @@ int isolate_lru_page(struct page *page)
>> int ret = -EBUSY;
>>
>> VM_BUG_ON_PAGE(!page_count(page), page);
>> + VM_BUG_ON_PAGE(PageTail(page), page);
>>
>> if (PageLRU(page)) {
>> struct zone *zone = page_zone(page);
>> --
>> 2.6.2
>
--
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>
prev parent reply other threads:[~2015-12-22 15:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-16 14:29 [PATCH] mm: make sure isolate_lru_page() is never called for tail page Kirill A. Shutemov
2015-12-16 14:47 ` Michal Hocko
2015-12-22 15:57 ` Vlastimil Babka [this message]
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=567972FF.4090408@suse.cz \
--to=vbabka@suse.cz \
--cc=akpm@linux-foundation.org \
--cc=kirill.shutemov@linux.intel.com \
--cc=linux-mm@kvack.org \
--cc=mhocko@kernel.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;
as well as URLs for NNTP newsgroup(s).