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Tsirkin" , Stefano Garzarella Subject: [PATCH v6 09/12] contrib/vhost-user-blk: enable it on any POSIX system Date: Tue, 28 May 2024 12:38:17 +0200 Message-ID: <20240528103817.146211-1-sgarzare@redhat.com> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240528103543.145412-1-sgarzare@redhat.com> References: <20240528103543.145412-1-sgarzare@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=sgarzare@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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=-0.034, 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1716892718429100001 Let's make the code more portable by adding defines from block/file-posix.c to support O_DIRECT in other systems (e.g. macOS). vhost-user-server.c is a dependency, let's enable it for any POSIX system. Acked-by: Stefan Hajnoczi Reviewed-by: Philippe Mathieu-Daud=C3=A9 Tested-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Stefano Garzarella --- v6: - reverted v5 changes since we can't move O_DSYNC and O_DIRECT in osdep [Daniel, failing tests on Windows] v5: - O_DSYNC and O_DIRECT definition are now in osdep [Phil] - commit updated since we moved out all code changes v4: - moved using of "qemu/bswap.h" API in a separate patch [Phil] --- meson.build | 2 -- contrib/vhost-user-blk/vhost-user-blk.c | 14 ++++++++++++++ util/meson.build | 4 +++- 3 files changed, 17 insertions(+), 3 deletions(-) diff --git a/meson.build b/meson.build index 48e476b237..c89ee7b578 100644 --- a/meson.build +++ b/meson.build @@ -1981,8 +1981,6 @@ has_statx =3D cc.has_header_symbol('sys/stat.h', 'STA= TX_BASIC_STATS', prefix: gnu_ has_statx_mnt_id =3D cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', pr= efix: gnu_source_prefix) =20 have_vhost_user_blk_server =3D get_option('vhost_user_blk_server') \ - .require(host_os =3D=3D 'linux', - error_message: 'vhost_user_blk_server requires linux') \ .require(have_vhost_user, error_message: 'vhost_user_blk_server requires vhost-user suppo= rt') \ .disable_auto_if(not have_tools and not have_system) \ diff --git a/contrib/vhost-user-blk/vhost-user-blk.c b/contrib/vhost-user-b= lk/vhost-user-blk.c index 9492146855..a450337685 100644 --- a/contrib/vhost-user-blk/vhost-user-blk.c +++ b/contrib/vhost-user-blk/vhost-user-blk.c @@ -25,6 +25,20 @@ #include #endif =20 +/* OS X does not have O_DSYNC */ +#ifndef O_DSYNC +#ifdef O_SYNC +#define O_DSYNC O_SYNC +#elif defined(O_FSYNC) +#define O_DSYNC O_FSYNC +#endif +#endif + +/* Approximate O_DIRECT with O_DSYNC if O_DIRECT isn't available */ +#ifndef O_DIRECT +#define O_DIRECT O_DSYNC +#endif + enum { VHOST_USER_BLK_MAX_QUEUES =3D 8, }; diff --git a/util/meson.build b/util/meson.build index 72b505df11..c414178ace 100644 --- a/util/meson.build +++ b/util/meson.build @@ -112,10 +112,12 @@ if have_block util_ss.add(files('filemonitor-stub.c')) endif if host_os =3D=3D 'linux' - util_ss.add(files('vhost-user-server.c'), vhost_user) util_ss.add(files('vfio-helpers.c')) util_ss.add(files('chardev_open.c')) endif + if host_os !=3D 'windows' + util_ss.add(files('vhost-user-server.c'), vhost_user) + endif util_ss.add(files('yank.c')) endif =20 --=20 2.45.1