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-rw-r--r--util/osdep.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/util/osdep.c b/util/osdep.c
index 685c8ae..62072b4 100644
--- a/util/osdep.c
+++ b/util/osdep.c
@@ -207,6 +207,13 @@ int qemu_open(const char *name, int flags, ...)
}
#endif
+#ifdef O_DIRECT
+ if (ret == -1 && errno == EINVAL && (flags & O_DIRECT)) {
+ error_report("file system may not support O_DIRECT");
+ errno = EINVAL; /* in case it was clobbered */
+ }
+#endif /* O_DIRECT */
+
return ret;
}
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