From: Jeff Moyer Subject: Re: [PATCH v2 5/5] dax: handle media errors in dax_do_io Date: Fri, 15 Apr 2016 15:13:26 -0400 Message-ID: References: <1459303190-20072-1-git-send-email-vishal.l.verma@intel.com> <1459303190-20072-6-git-send-email-vishal.l.verma@intel.com> <1460739288.3012.3.camel@intel.com> <1460741821.3012.11.camel@intel.com> Mime-Version: 1.0 Content-Type: text/plain Cc: "Verma\, Vishal L" , "hch\@infradead.org" , "jack\@suse.cz" , "axboe\@fb.com" , "linux-nvdimm\@ml01.01.org" , "david\@fromorbit.com" , "linux-kernel\@vger.kernel.org" , "xfs\@oss.sgi.com" , "linux-block\@vger.kernel.org" , "linux-mm\@kvack.org" , "viro\@zeniv.linux.org.uk" , "linux-fsdevel\@vger.kernel.org" , "akpm\@linux-foundation.org" , "linux-ext4\@vger.kernel.org" , "Wilcox\, Matthew R" To: Dan Williams Return-path: In-Reply-To: (Dan Williams's message of "Fri, 15 Apr 2016 11:56:20 -0700") Sender: owner-linux-mm@kvack.org List-Id: linux-ext4.vger.kernel.org Dan Williams writes: > On Fri, Apr 15, 2016 at 11:24 AM, Jeff Moyer wrote: >>> Moreover, we're going to do the full badblocks lookup anyway when we >>> call ->direct_access(). If we had that information earlier we can >>> avoid this fallback dance. >> >> None of the proposed approaches looks clean to me. I'll go along with >> whatever you guys think is best. I am in favor of wrapping up all that >> duplicated code, though. > > Christoph originally pushed for open coding this fallback decision > per-filesystem. I agree with you on the "none the above" options are > clean. I don't recall him saying "open code". Rather, the sentiment was to leave the fallback to the callers. That doesn't mean you can't wrap it up in a convenience function. Cheers, Jeff -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org