From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Thu, 22 Mar 2018 08:08:08 +0100 From: Michal Hocko To: Goldwyn Rodrigues Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, willy@infradead.org, david@fromorbit.com, Goldwyn Rodrigues Subject: Re: [PATCH 1/3] fs: Perform writebacks under memalloc_nofs Message-ID: <20180322070808.GU23100@dhcp22.suse.cz> References: <20180321224429.15860-1-rgoldwyn@suse.de> <20180321224429.15860-2-rgoldwyn@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180321224429.15860-2-rgoldwyn@suse.de> Sender: owner-linux-mm@kvack.org List-ID: On Wed 21-03-18 17:44:27, Goldwyn Rodrigues wrote: > From: Goldwyn Rodrigues > > writebacks can recurse into itself under low memory situations. > Set memalloc_nofs_save() in order to make sure it does not > recurse. How? We are not doing writeback from the direct reclaim context. -- Michal Hocko SUSE Labs