Attachment 308606 Details for Bug 450094 – proposed patch

[patch] proposed patch

arch_get_unmapped_area_topdown.patch (text/plain), 2.14 KB, created by Vitaly Mayatskikh on 2008-06-07 11:47:15 UTC

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Creator: Vitaly Mayatskikh

Created: 2008-06-07 11:47:15 UTC

Size: 2.14 KB

patch

obsolete

>diff --git a/arch/i386/mm/hugetlbpage.c b/arch/i386/mm/hugetlbpage.c
>index c3eb5b2..44086e6 100644
>--- a/arch/i386/mm/hugetlbpage.c
>+++ b/arch/i386/mm/hugetlbpage.c
>@@ -348,7 +348,7 @@ try_again:
> 		 * new region fits between prev_vma->vm_end and
> 		 * vma->vm_start, use it:
> 		 */
>-		if (addr + len <= vma->vm_start &&
>+		if (addr & addr + len <= vma->vm_start &&
> 				(!prev_vma || (addr >= prev_vma->vm_end)))
> 			/* remember the address as a hint for next time */
> 			return (mm->free_area_cache = addr);
>@@ -359,7 +359,7 @@ try_again:
> 
> 		/* try just below the current vma->vm_start */
> 		addr = (vma->vm_start - len) & HPAGE_MASK;
>-	} while (len <= vma->vm_start);
>+	} while (len < vma->vm_start);
> 
> fail:
> 	/*
>diff --git a/arch/ppc64/mm/hugetlbpage.c b/arch/ppc64/mm/hugetlbpage.c
>index b33340b..05a56b5 100644
>--- a/arch/ppc64/mm/hugetlbpage.c
>+++ b/arch/ppc64/mm/hugetlbpage.c
>@@ -618,7 +618,7 @@ hugepage_recheck:
> 
> 		/* try just below the current vma->vm_start */
> 		addr = vma->vm_start-len;
>-	} while (len <= vma->vm_start);
>+	} while (len < vma->vm_start);
> 
> fail:
> 	/*
>diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86_64/kernel/sys_x86_64.c
>index be775a0..9f5aa44 100644
>--- a/arch/x86_64/kernel/sys_x86_64.c
>+++ b/arch/x86_64/kernel/sys_x86_64.c
>@@ -211,7 +211,7 @@ try_again:
> 
> 		/* try just below the current vma->vm_start */
> 		addr = vma->vm_start-len;
>-	} while (len <= vma->vm_start);
>+	} while (len < vma->vm_start);
> 
> fail:
> 	/*
>diff --git a/arch/x86_64/mm/hugetlbpage.c b/arch/x86_64/mm/hugetlbpage.c
>index da5e59c..c9fc198 100644
>--- a/arch/x86_64/mm/hugetlbpage.c
>+++ b/arch/x86_64/mm/hugetlbpage.c
>@@ -366,7 +366,7 @@ try_again:
> 		 * new region fits between prev_vma->vm_end and
> 		 * vma->vm_start, use it:
> 		 */
>-		if (addr + len <= vma->vm_start &&
>+		if (addr && addr + len <= vma->vm_start &&
> 				(!prev_vma || (addr >= prev_vma->vm_end)))
> 			/* remember the address as a hint for next time */
> 			return (mm->free_area_cache = addr);
>@@ -377,7 +377,7 @@ try_again:
> 
> 		/* try just below the current vma->vm_start */
> 		addr = (vma->vm_start - len) & HPAGE_MASK;
>-	} while (len <= vma->vm_start);
>+	} while (len < vma->vm_start);
> 
> fail:
> 	/*

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Attachments on bug 450094: 308606