On Sat, 21 Apr 2012 19:12:35 +0530
Rajman Mekaco <rajman.mekaco@xxxxxxxxx> wrote:
> The if(mm) check is not required in find_vma, as the kernel
> code calls find_vma only when it is absolutely sure that the
> mm_struct arg to it is non-NULL.
>
> Removing the if(mm) check and adding the a WARN_ONCE(!mm)
> for now.
Lets do this as well:
--- a/mm/mmap.c~mm-mmapc-find_vma-remove-unnecessary-ifmm-check-fix
+++ a/mm/mmap.c
@@ -1639,7 +1639,7 @@ struct vm_area_struct *find_vma(struct m
{
struct vm_area_struct *vma = NULL;
- if (WARN_ON_ONCE(!mm))
+ if (WARN_ON_ONCE(!mm)) /* Remove this in linux-3.6 */
return NULL;
/* Check the cache first. */
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>