From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marco Stornelli Subject: Re: [PATCH 1/2 v2] fs: add SEEK_HOLE and SEEK_DATA flags Date: Thu, 05 May 2011 20:54:02 +0200 Message-ID: <4DC2F24A.4050304@gmail.com> References: <1304531920-2890-1-git-send-email-josef@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org To: Josef Bacik Return-path: In-Reply-To: <1304531920-2890-1-git-send-email-josef@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Il 04/05/2011 19:58, Josef Bacik ha scritto: > + if (offset>= i_size_read(inode)) { > + mutex_unlock(&inode->i_mutex); > + return -ENXIO; > + } > + offset = i_size_read(inode); > + break; Here maybe it's possible to use offset bigger than i_size, because i_size_read is "atomic" but something can happen between two calls, isn't it? Marco