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Thu, 3 Sep 2020 11:00:33 +0200 (CEST) From: Markus Armbruster To: Daniel P. =?utf-8?Q?Berrang=C3=A9?= Subject: Re: [PATCH v5 4/8] util: refactor qemu_open_old to split off variadic args handling References: <20200902170913.1785194-1-berrange@redhat.com> <20200902170913.1785194-5-berrange@redhat.com> Date: Thu, 03 Sep 2020 11:00:33 +0200 In-Reply-To: <20200902170913.1785194-5-berrange@redhat.com> ("Daniel P. =?utf-8?Q?Berrang=C3=A9=22's?= message of "Wed, 2 Sep 2020 18:09:09 +0100") Message-ID: <878sdrs09a.fsf@dusky.pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=216.205.24.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/03 01:47:17 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org, qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Daniel P. Berrang=C3=A9 writes: > This simple refactoring prepares for future patches. The variadic args > handling is split from the main bulk of the open logic. The duplicated > calls to open() are removed in favour of updating the "flags" variable > to have O_CLOEXEC. Drop the second sentence, it is no longer true in this revision. > Signed-off-by: Daniel P. Berrang=C3=A9 > --- > util/osdep.c | 25 ++++++++++++++++++------- > 1 file changed, 18 insertions(+), 7 deletions(-) > > diff --git a/util/osdep.c b/util/osdep.c > index 7504c156e8..dd34b58bb7 100644 > --- a/util/osdep.c > +++ b/util/osdep.c > @@ -22,6 +22,7 @@ > * THE SOFTWARE. > */ > #include "qemu/osdep.h" > +#include "qapi/error.h" This patch doesn't use anything from qapi/error.h as far as I can tell. Does the hunk belong to another patch? > =20 > /* Needed early for CONFIG_BSD etc. */ > =20 > @@ -296,10 +297,10 @@ static int qemu_open_cloexec(const char *name, int = flags, mode_t mode) > /* > * Opens a file with FD_CLOEXEC set > */ > -int qemu_open_old(const char *name, int flags, ...) > +static int > +qemu_open_internal(const char *name, int flags, mode_t mode) > { > int ret; > - int mode =3D 0; > =20 > #ifndef _WIN32 > const char *fdset_id_str; > @@ -324,15 +325,25 @@ int qemu_open_old(const char *name, int flags, ...) > } > #endif > =20 > - if (flags & O_CREAT) { > - va_list ap; > + ret =3D qemu_open_cloexec(name, flags, mode); > + > + return ret; > +} > + > =20 > - va_start(ap, flags); > +int qemu_open_old(const char *name, int flags, ...) > +{ > + va_list ap; > + mode_t mode =3D 0; > + int ret; > + > + va_start(ap, flags); > + if (flags & O_CREAT) { > mode =3D va_arg(ap, int); > - va_end(ap); > } > + va_end(ap); > =20 > - ret =3D qemu_open_cloexec(name, flags, mode); > + ret =3D qemu_open_internal(name, flags, mode); > =20 > #ifdef O_DIRECT > if (ret =3D=3D -1 && errno =3D=3D EINVAL && (flags & O_DIRECT)) { With the minor inaccuracies tidied up: Reviewed-by: Markus Armbruster