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Sat, 13 Jun 2020 06:42:37 -0700 (PDT) Date: Sat, 13 Jun 2020 19:12:36 +0530 From: afzal mohammed To: Al Viro Cc: Arnd Bergmann , Russell King - ARM Linux admin , Linus Walleij , "linux-kernel@vger.kernel.org" , Linux-MM , Linux ARM , Nicolas Pitre , Catalin Marinas , Will Deacon Subject: Re: [RFC 1/3] lib: copy_{from,to}_user using gup & kmap_atomic() Message-ID: <20200613134236.GA4086@afzalpc> References: <9e1de19f35e2d5e1d115c9ec3b7c3284b4a4e077.1591885760.git.afzal.mohd.ma@gmail.com> <20200612135538.GA13399@afzalpc> <20200613120432.GA5319@afzalpc> <20200613125126.GE23230@ZenIV.linux.org.uk> <20200613125615.GF23230@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200613125615.GF23230@ZenIV.linux.org.uk> User-Agent: Mutt/1.9.3 (2018-01-21) X-Rspamd-Queue-Id: C7A071803F9A5 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi, On Sat, Jun 13, 2020 at 01:56:15PM +0100, Al Viro wrote: > Incidentally, what about get_user()/put_user()? _That_ is where it's > going to really hurt... All other uaccess routines are also planned to be added, posting only copy_{from,to}_user() was to get early feedback (mentioned in the cover letter) Regards afzal