linux-kernel - Re: [PATCH] mm: refactor __vunmap() to avoid duplicated call to find_vm

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Message-ID: <20190515174525.GA11013@castle>
Date:   Wed, 15 May 2019 17:45:37 +0000
From:   Roman Gushchin <guro@...com>
To:     Ira Weiny <ira.weiny@...el.com>
CC:     Andrew Morton <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Kernel Team <Kernel-team@...com>,
        "Johannes Weiner" <hannes@...xchg.org>,
        Matthew Wilcox <willy@...radead.org>,
        Vlastimil Babka <vbabka@...e.cz>
Subject: Re: [PATCH] mm: refactor __vunmap() to avoid duplicated call to
 find_vm_area()

On Wed, May 15, 2019 at 10:35:26AM -0700, Ira Weiny wrote:
> >  
> > -/* Handle removing and resetting vm mappings related to the vm_struct. */
> > -static void vm_remove_mappings(struct vm_struct *area, int deallocate_pages)
> > +/* Handle removing and resetting vm mappings related to the va->vm vm_struct. */
> > +static void vm_remove_mappings(struct vmap_area *va, int deallocate_pages)
> 
> Does this apply to 5.1?  I'm confused because I can't find vm_remove_mappings()
> in 5.1.

Not really, it's based on top of the current mm tree.
You can find the earlier version which applies on 5.1 here:
https://lkml.org/lkml/2019/4/17/954

Thanks!