From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aurelien Jarno Subject: Re: [PATCH] vfs: fix preadv64v2 and pwritev64v2 compat syscalls with offset == -1 Date: Sat, 12 Jan 2019 20:07:13 +0100 Message-ID: <20190112190713.GA21480@aurel32.net> References: <20181206190534.16246-1-aurelien@aurel32.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org, x86@kernel.org, Alexander Viro , "H . J . Lu" To: linux-kernel@vger.kernel.org Return-path: Content-Disposition: inline In-Reply-To: <20181206190534.16246-1-aurelien@aurel32.net> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On 2018-12-06 20:05, Aurelien Jarno wrote: > The preadv2 and pwritev2 syscalls are supposed to emulate the readv and > writev syscalls when offset == -1. Therefore the compat code should > check for offset before calling do_compat_preadv64 and > do_compat_pwritev64. This is the case for the preadv2 and pwritev2 > syscalls, but handling of offset == -1 is missing in their 64-bit > equivalent. > > This patch fixes that, calling do_compat_readv and do_compat_writev when > offset == -1. This fixes the following glibc tests on x32: > - misc/tst-preadvwritev2 > - misc/tst-preadvwritev64v2 > > Cc: Alexander Viro > Cc: H.J. Lu > Signed-off-by: Aurelien Jarno > --- > fs/read_write.c | 6 ++++++ > 1 file changed, 6 insertions(+) Any news about this patch? Thanks, Aurelien -- Aurelien Jarno GPG: 4096R/1DDD8C9B aurelien@aurel32.net http://www.aurel32.net