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SubjectRe: [RFC] [PATCH 2.6.37-rc5-tip 14/20] 14: uprobes: Handing int3 and singlestep exception.
* Peter Zijlstra <peterz@infradead.org> [2011-01-25 14:56:19]:

> On Thu, 2010-12-16 at 15:29 +0530, Srikar Dronamraju wrote:
> > + down_read(&mm->mmap_sem);
> > + for (vma = mm->mmap; vma; vma = vma->vm_next) {
> > + if (!valid_vma(vma))
> > + continue;
> > + if (probept < vma->vm_start || probept > vma->vm_end)
> > + continue;
> > + u = find_uprobe(vma->vm_file->f_mapping->host,
> > + probept - vma->vm_start);
> > + if (u)
> > + break;
> > + }
> > + up_read(&mm->mmap_sem);
>
> One has to ask, what's wrong with find_vma() ?

Are you looking for something like this.

down_read(&mm->mmap_sem);
for (vma = find_vma(mm, probept); ; vma = vma->vm_next) {
if (!valid_vma(vma))
continue;
u = find_uprobe(vma->vm_file->f_mapping->host,
probept - vma->vm_start);
if (u)
break;
}
up_read(&mm->mmap_sem);

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