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Wed, 16 Sep 2020 09:47:14 +0000 (UTC) Received: from localhost.localdomain.com (unknown [10.36.110.59]) by smtp.corp.redhat.com (Postfix) with ESMTP id CF0A675141; Wed, 16 Sep 2020 09:47:11 +0000 (UTC) From: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [PULL 2/8] util: split off a helper for dealing with O_CLOEXEC flag Date: Wed, 16 Sep 2020 10:46:59 +0100 Message-Id: <20200916094705.2625331-3-berrange@redhat.com> In-Reply-To: <20200916094705.2625331-1-berrange@redhat.com> References: <20200916094705.2625331-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.81; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/16 02:41:36 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -50 X-Spam_score: -5.1 X-Spam_bar: ----- X-Spam_report: (-5.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.999, 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_H2=-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 , Peter Maydell , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , qemu-block@nongnu.org, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Markus Armbruster , Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We're going to have multiple callers to open() from qemu_open() soon. Readability would thus benefit from having a helper for dealing with O_CLOEXEC. Reviewed-by: Markus Armbruster Signed-off-by: Daniel P. Berrangé --- util/osdep.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/util/osdep.c b/util/osdep.c index 3d94b4d732..0d8fa9f016 100644 --- a/util/osdep.c +++ b/util/osdep.c @@ -279,6 +279,20 @@ int qemu_lock_fd_test(int fd, int64_t start, int64_t len, bool exclusive) } #endif +static int qemu_open_cloexec(const char *name, int flags, mode_t mode) +{ + int ret; +#ifdef O_CLOEXEC + ret = open(name, flags | O_CLOEXEC, mode); +#else + ret = open(name, flags, mode); + if (ret >= 0) { + qemu_set_cloexec(ret); + } +#endif + return ret; +} + /* * Opens a file with FD_CLOEXEC set */ @@ -318,14 +332,7 @@ int qemu_open(const char *name, int flags, ...) va_end(ap); } -#ifdef O_CLOEXEC - ret = open(name, flags | O_CLOEXEC, mode); -#else - ret = open(name, flags, mode); - if (ret >= 0) { - qemu_set_cloexec(ret); - } -#endif + ret = qemu_open_cloexec(name, flags, mode); #ifdef O_DIRECT if (ret == -1 && errno == EINVAL && (flags & O_DIRECT)) {