Darwin doesn't have either of these flags. Darwin does have
F_NOCACHE, which is similar to O_DIRECT, but has different
enough semantics that other projects don't generally map
them automatically. In any case, we don't support O_DIRECT
on Linux at the moment either.
Signed-off-by: Keno Fischer <k...@juliacomputing.com>
---
hw/9pfs/9p.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index 06139c9..e650459 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -123,11 +123,18 @@ static int dotl_to_open_flags(int flags)
{ P9_DOTL_NONBLOCK, O_NONBLOCK } ,
{ P9_DOTL_DSYNC, O_DSYNC },
{ P9_DOTL_FASYNC, FASYNC },
+#ifndef CONFIG_DARWIN
+ { P9_DOTL_NOATIME, O_NOATIME },
+ /* On Darwin, we could map to F_NOCACHE, which is
+ similar, but doesn't quite have the same
+ semantics. However, we don't support O_DIRECT
+ even on linux at the moment, so we just ignore
+ it here. */
{ P9_DOTL_DIRECT, O_DIRECT },
+#endif
{ P9_DOTL_LARGEFILE, O_LARGEFILE },
{ P9_DOTL_DIRECTORY, O_DIRECTORY },
{ P9_DOTL_NOFOLLOW, O_NOFOLLOW },
- { P9_DOTL_NOATIME, O_NOATIME },
{ P9_DOTL_SYNC, O_SYNC },
};
@@ -156,10 +163,12 @@ static int get_dotl_openflags(V9fsState *s, int oflags)
*/
flags = dotl_to_open_flags(oflags);
flags &= ~(O_NOCTTY | O_ASYNC | O_CREAT);
+#ifndef CONFIG_DARWIN
/*
* Ignore direct disk access hint until the server supports it.
*/
flags &= ~O_DIRECT;
+#endif
return flags;
}
--
2.8.1
