linux-kernel - Re: [PATCH v2 5/9] mm: vmalloc: Remove global purge_vmap_area

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Message-ID: <ZP9HwP7FT5e62gee@pc636>
Date:   Mon, 11 Sep 2023 19:00:48 +0200
From:   Uladzislau Rezki <urezki@...il.com>
To:     Baoquan He <bhe@...hat.com>
Cc:     "Uladzislau Rezki (Sony)" <urezki@...il.com>, linux-mm@...ck.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Lorenzo Stoakes <lstoakes@...il.com>,
        Christoph Hellwig <hch@...radead.org>,
        Matthew Wilcox <willy@...radead.org>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Dave Chinner <david@...morbit.com>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Oleksiy Avramchenko <oleksiy.avramchenko@...y.com>
Subject: Re: [PATCH v2 5/9] mm: vmalloc: Remove global purge_vmap_area_root
 rb-tree

> On 08/29/23 at 10:11am, Uladzislau Rezki (Sony) wrote:
> > Similar to busy VA, lazily-freed area is stored to a node
> > it belongs to. Such approach does not require any global
> > locking primitive, instead an access becomes scalable what
> > mitigates a contention.
> > 
> > This patch removes a global purge-lock, global purge-tree
> > and global purge list.
> > 
> > Signed-off-by: Uladzislau Rezki (Sony) <urezki@...il.com>
> > ---
> >  mm/vmalloc.c | 135 +++++++++++++++++++++++++++++++--------------------
> >  1 file changed, 82 insertions(+), 53 deletions(-)
> 
> LGTM,
> 
> Reviewed-by: Baoquan He <bhe@...hat.com>
> 
Applied.

Thank you for review!

--
Uladzislau Rezki