From: Prasad Joshi <prasadjoshi124@gmail.com>
To: Jeff Dike <jdike@addtoit.com>, Tejun Heo <tj@kernel.org>,
user-mode-linux-devel@lists.sourceforge.net,
UML Mailing List <user-mode-linux-user@lists.sourceforge.net>,
Prasad Joshi <prasadjoshi124@gmail.com>,
Anand Mitra <mitra@kqinfotech.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-arch@vger.kernel.org
Subject: [RFC][PATCH v2 21/23] (um) __vmalloc: add gfp flags variant of pte and pmd allocation
Date: Mon, 14 Mar 2011 18:12:09 +0000 [thread overview]
Message-ID: <AANLkTim8nHe1jXagKg-5g0ZLh7J61LzAi0ww__Kgaerx@mail.gmail.com> (raw)
diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
index 32c8ce4..8b6257e 100644
--- a/arch/um/include/asm/pgalloc.h
+++ b/arch/um/include/asm/pgalloc.h
@@ -27,6 +27,7 @@ extern pgd_t *pgd_alloc(struct mm_struct *);
extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
+extern pte_t *__pte_alloc_one_kernel(struct mm_struct *, unsigned long, gfp_t);
extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 8137ccc..e4caf17 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -284,12 +284,15 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
free_page((unsigned long) pgd);
}
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *
+__pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address,
gfp_t gfp_mask)
{
- pte_t *pte;
+ return (pte_t *)__get_free_page(gfp_mask | __GFP_ZERO);
+}
- pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
- return pte;
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+{
+ return __pte_alloc_one_kernel(mm, address, GFP_KERNEL | __GFP_REPEAT);
}
pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
@@ -303,15 +306,21 @@ pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long address)
}
#ifdef CONFIG_3_LEVEL_PGTABLES
-pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+pmd_t *
+__pmd_alloc_one(struct mm_struct *mm, unsigned long address, gfp_t gfp_mask)
{
- pmd_t *pmd = (pmd_t *) __get_free_page(GFP_KERNEL);
+ pmd_t *pmd = (pmd_t *) __get_free_page(gfp_mask);
if (pmd)
memset(pmd, 0, PAGE_SIZE);
return pmd;
}
+
+pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+ return __pmd_alloc_one(mm, address, GFP_KERNEL);
+}
#endif
void *uml_kmalloc(int size, int flags)
--
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next reply other threads:[~2011-03-14 18:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-14 18:12 Prasad Joshi [this message]
2011-03-14 22:26 ` richard -rw- weinberger
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