From: Rohit Seth <rohit.seth@intel.com>
To: Adam Litke <agl@us.ibm.com>
Cc: akpm@osdl.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org,
David Gibson <david@gibson.dropbear.id.au>,
wli@holomorphy.com, hugh@veritas.com, kenneth.w.chen@intel.com
Subject: Re: [PATCH 4/4] Hugetlb: Copy on Write support
Date: Wed, 09 Nov 2005 17:52:44 -0800 [thread overview]
Message-ID: <1131587564.16514.53.camel@akash.sc.intel.com> (raw)
In-Reply-To: <1131579596.28383.25.camel@localhost.localdomain>
On Wed, 2005-11-09 at 17:39 -0600, Adam Litke wrote:
>
> +#define huge_ptep_set_wrprotect(mm, addr, ptep) \
> + ptep_set_wrprotect(mm, addr, ptep)
> +static inline void set_huge_ptep_writable(struct vm_area_struct *vma,
> + unsigned long address, pte_t *ptep)
> +{
> + pte_t entry;
> +
> + entry = pte_mkwrite(pte_mkdirty(*ptep));
> + ptep_set_access_flags(vma, address, ptep, entry, 1);
> + update_mmu_cache(vma, address, entry);
> +}
lazy_mmu_prot_update will need to called here to make caches coherent
for some archs.
-rohit
WARNING: multiple messages have this Message-ID (diff)
From: Rohit Seth <rohit.seth@intel.com>
To: Adam Litke <agl@us.ibm.com>
Cc: akpm@osdl.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org,
David Gibson <david@gibson.dropbear.id.au>,
wli@holomorphy.com, hugh@veritas.com, kenneth.w.chen@intel.com
Subject: Re: [PATCH 4/4] Hugetlb: Copy on Write support
Date: Wed, 09 Nov 2005 17:52:44 -0800 [thread overview]
Message-ID: <1131587564.16514.53.camel@akash.sc.intel.com> (raw)
In-Reply-To: <1131579596.28383.25.camel@localhost.localdomain>
On Wed, 2005-11-09 at 17:39 -0600, Adam Litke wrote:
>
> +#define huge_ptep_set_wrprotect(mm, addr, ptep) \
> + ptep_set_wrprotect(mm, addr, ptep)
> +static inline void set_huge_ptep_writable(struct vm_area_struct *vma,
> + unsigned long address, pte_t *ptep)
> +{
> + pte_t entry;
> +
> + entry = pte_mkwrite(pte_mkdirty(*ptep));
> + ptep_set_access_flags(vma, address, ptep, entry, 1);
> + update_mmu_cache(vma, address, entry);
> +}
lazy_mmu_prot_update will need to called here to make caches coherent
for some archs.
-rohit
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next prev parent reply other threads:[~2005-11-10 1:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-09 23:28 [PATCH 0/4] hugetlb: copy on write Adam Litke
2005-11-09 23:28 ` Adam Litke
2005-11-09 23:36 ` [PATCH 1/4] Hugetlb: Remove duplicate i_size check Adam Litke
2005-11-09 23:36 ` Adam Litke
2005-11-10 0:10 ` William Lee Irwin III
2005-11-10 0:10 ` William Lee Irwin III
2005-11-09 23:37 ` [PATCH 2/4] Hugetlb: Rename find_lock_page to find_or_alloc_huge_page Adam Litke
2005-11-09 23:37 ` Adam Litke
2005-11-10 0:11 ` William Lee Irwin III
2005-11-10 0:11 ` William Lee Irwin III
2005-11-09 23:38 ` [PATCH 3/4] Hugetlb: Reorganize hugetlb_fault to prepare for COW Adam Litke
2005-11-09 23:38 ` Adam Litke
2005-11-10 0:13 ` William Lee Irwin III
2005-11-10 0:13 ` William Lee Irwin III
2005-11-09 23:39 ` [PATCH 4/4] Hugetlb: Copy on Write support Adam Litke
2005-11-09 23:39 ` Adam Litke
2005-11-10 0:15 ` William Lee Irwin III
2005-11-10 0:15 ` William Lee Irwin III
2005-11-10 0:49 ` David Gibson
2005-11-10 0:49 ` David Gibson
2005-11-10 0:56 ` William Lee Irwin III
2005-11-10 0:56 ` William Lee Irwin III
2005-11-10 1:52 ` Rohit Seth [this message]
2005-11-10 1:52 ` Rohit Seth
2005-11-10 3:54 ` David Gibson
2005-11-10 3:54 ` David Gibson
2005-11-10 4:20 ` William Lee Irwin III
2005-11-10 4:20 ` William Lee Irwin III
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