linux-ext4 - Re: vmalloc with GFP

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Date:   Wed, 9 May 2018 23:06:17 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Mike Rapoport <rppt@...ux.vnet.ibm.com>
Cc:     "Darrick J. Wong" <darrick.wong@...cle.com>,
        "Theodore Y. Ts'o" <tytso@....edu>,
        LKML <linux-kernel@...r.kernel.org>,
        Artem Bityutskiy <dedekind1@...il.com>,
        Richard Weinberger <richard@....at>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Steven Whitehouse <swhiteho@...hat.com>,
        Bob Peterson <rpeterso@...hat.com>,
        Trond Myklebust <trond.myklebust@...marydata.com>,
        Anna Schumaker <anna.schumaker@...app.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Mikulas Patocka <mpatocka@...hat.com>,
        linux-mtd@...ts.infradead.org, linux-ext4@...r.kernel.org,
        cluster-devel@...hat.com, linux-nfs@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: vmalloc with GFP_NOFS

On Wed 09-05-18 19:24:51, Mike Rapoport wrote:
> On Wed, May 09, 2018 at 08:13:51AM -0700, Darrick J. Wong wrote:
> > On Wed, May 09, 2018 at 03:42:22PM +0200, Michal Hocko wrote:
[...]
> > > FS/IO code then simply calls the appropriate save function right at
> > > the layer where a lock taken from the reclaim context (e.g. shrinker)
> > > is taken and the corresponding restore function when the lock is
> 
> Seems like the second "is taken" got there by mistake

yeah, fixed. Thanks!
-- 
Michal Hocko
SUSE Labs