From: Adam Litke <agl@us.ibm.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: akpm@linux-foundation.org, apw@shadowen.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] [PATCH] Align faulting address to a hugepage boundary before unmapping
Date: Thu, 10 Jul 2008 13:02:52 -0500 [thread overview]
Message-ID: <1215712972.14825.111.camel@localhost.localdomain> (raw)
In-Reply-To: <20080710173041.16433.21192.sendpatchset@skynet.skynet.ie>
On Thu, 2008-07-10 at 18:30 +0100, Mel Gorman wrote:
> When taking a fault for COW on a private mapping it is possible that the
> parent will have to steal the original page from its children due to an
> insufficient hugepage pool. In this case, unmap_ref_private() is called
> for the faulting address to unmap via unmap_hugepage_range(). This patch
> ensures that the address used for unmapping is hugepage-aligned.
>
> Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Adam Litke <agl@us.ibm.com>
Tested and confirmed.
--
Adam Litke - (agl at us.ibm.com)
IBM Linux Technology Center
WARNING: multiple messages have this Message-ID (diff)
From: Adam Litke <agl@us.ibm.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: akpm@linux-foundation.org, apw@shadowen.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] [PATCH] Align faulting address to a hugepage boundary before unmapping
Date: Thu, 10 Jul 2008 13:02:52 -0500 [thread overview]
Message-ID: <1215712972.14825.111.camel@localhost.localdomain> (raw)
In-Reply-To: <20080710173041.16433.21192.sendpatchset@skynet.skynet.ie>
On Thu, 2008-07-10 at 18:30 +0100, Mel Gorman wrote:
> When taking a fault for COW on a private mapping it is possible that the
> parent will have to steal the original page from its children due to an
> insufficient hugepage pool. In this case, unmap_ref_private() is called
> for the faulting address to unmap via unmap_hugepage_range(). This patch
> ensures that the address used for unmapping is hugepage-aligned.
>
> Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Adam Litke <agl@us.ibm.com>
Tested and confirmed.
--
Adam Litke - (agl at us.ibm.com)
IBM Linux Technology Center
--
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next prev parent reply other threads:[~2008-07-10 18:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-10 17:30 [PATCH 0/2] Fix two bugs in hugetlbfs MAP_PRIVATE page reservation Mel Gorman
2008-07-10 17:30 ` Mel Gorman
2008-07-10 17:30 ` [PATCH 1/2] [PATCH] Fix a hugepage reservation check for MAP_SHARED Mel Gorman
2008-07-10 17:30 ` Mel Gorman
2008-07-10 19:01 ` Adam Litke
2008-07-10 19:01 ` Adam Litke
2008-07-11 8:16 ` Andy Whitcroft
2008-07-11 8:16 ` Andy Whitcroft
2008-07-10 17:30 ` [PATCH 2/2] [PATCH] Align faulting address to a hugepage boundary before unmapping Mel Gorman
2008-07-10 17:30 ` Mel Gorman
2008-07-10 18:02 ` Adam Litke [this message]
2008-07-10 18:02 ` Adam Litke
2008-07-11 8:17 ` Andy Whitcroft
2008-07-11 8:17 ` Andy Whitcroft
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