| Message ID | 20240508074457.12367-10-sgarzare@redhat.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | vhost-user: support any POSIX system (tested on macOS, FreeBSD, OpenBSD) | expand |
On 8/5/24 09:44, Stefano Garzarella wrote: > 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. > > Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> > --- > 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/contrib/vhost-user-blk/vhost-user-blk.c b/contrib/vhost-user-blk/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 <sys/ioctl.h> > #endif > > +/* 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 Could we add that in "qemu/osdep.h" instead? Otherwise, Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
On Wed, May 08, 2024 at 12:32:08PM GMT, Philippe Mathieu-Daudé wrote: >On 8/5/24 09:44, Stefano Garzarella wrote: >>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. >> >>Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> >>--- >>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/contrib/vhost-user-blk/vhost-user-blk.c b/contrib/vhost-user-blk/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 <sys/ioctl.h> >> #endif >>+/* 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 > >Could we add that in "qemu/osdep.h" instead? Since "qemu/osdep.h" includes fcntl.h, I think it could be fine. @Hanna, @Kevin WDYT? > >Otherwise, >Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> >Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org> > Thanks, Stefano
diff --git a/meson.build b/meson.build index 7954da5971..25047db3c1 100644 --- a/meson.build +++ b/meson.build @@ -1960,8 +1960,6 @@ has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_ has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix) have_vhost_user_blk_server = get_option('vhost_user_blk_server') \ - .require(host_os == 'linux', - error_message: 'vhost_user_blk_server requires linux') \ .require(have_vhost_user, error_message: 'vhost_user_blk_server requires vhost-user support') \ .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-blk/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 <sys/ioctl.h> #endif +/* 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 = 8, }; diff --git a/util/meson.build b/util/meson.build index 2ad57b10ba..93054f2340 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 == '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 != 'windows' + util_ss.add(files('vhost-user-server.c'), vhost_user) + endif util_ss.add(files('yank.c')) endif
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. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> --- 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(-)