Re: [RFC] fs, proc: Introduce the /proc/<pid>/map_files/ directory v2

From: Cyrill Gorcunov
Date: Fri Aug 26 2011 - 08:39:53 EST


On Fri, Aug 26, 2011 at 03:28:51PM +0300, Kirill A. Shutemov wrote:
...
> >
> > -static int proc_cwd_link(struct inode *inode, struct path *path)
> > +static int proc_cwd_link(struct dentry *dentry, struct inode *inode, struct path *path)
>
> Put proc_get_link() change in separate patch?
>

Will do, but let leave it to a final pass, ie when all get agreed on idea and
details, ok? Since I'll be re-sending the final version seraparely anyway.
...
> > + down_read(&mm->mmap_sem);
> > +
> > + nr_files = 0;
> > + for (vma = mm->mmap; vma; vma = vma->vm_next) {
> > + if (vma->vm_file)
> > + nr_files++;
> > + }
> > + if (!nr_files)
> > + goto out;
>
> up_read(&mm->mmap_sem); ?
>
> > +
> > + info = kmalloc(nr_files * sizeof(*info), GFP_KERNEL);
> > + if (!info) {
> > + ret = -ENOMEM;
> > + goto out;
>
> Ditto.
>

Yeah, thanks Kirill!
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