Support XFS RealTime partition

1 files changed, 19 insertions, 0 deletions

diff --git a/default.c b/default.c
index 6c7970b..97baec1 100644
--- a/default.c
+++ b/default.c
@@ -27,6 +27,10 @@
 # include <linux/falloc.h>
 #endif /* HAVE_LINUX_FALLOC_H */
 
+#ifndef DISABLE_XFS_REALTIME
+# include <xfs/xfs.h>
+#endif /* !DISABLE_XFS_REALTIME */
+
 #include "fastwriter.h"
 #include "private.h"
 #include "sysinfo.h"
@@ -55,6 +59,10 @@ int fastwriter_default_open(fastwriter_t *fw, const char *name, fastwriter_flags
     int err;
     char fs[16];
 
+#ifndef DISABLE_XFS_REALTIME
+    struct fsxattr attr;
+#endif /* !DISABLE_XFS_REALTIME */
+
     int open_flags = (O_CREAT|O_WRONLY|O_NOATIME|O_LARGEFILE);
     int open_mode = (S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
 
@@ -127,6 +135,17 @@ int fastwriter_default_open(fastwriter_t *fw, const char *name, fastwriter_flags
 # endif /* SYNC_MODE */
     }
 
+#ifndef DISABLE_XFS_REALTIME
+    if (!strcmp(fs, "xfs")) {
+	err = xfsctl (name, ctx->fd, XFS_IOC_FSGETXATTR, (void *) &attr);
+	if (!err) {
+	    attr.fsx_xflags |= XFS_XFLAG_REALTIME;
+	    err = xfsctl (name, ctx->fd, XFS_IOC_FSSETXATTR, (void *) &attr);
+//	    if (!err) puts("Real-time");
+	}
+    }
+#endif /* !DISABLE_XFS_REALTIME */
+
     ctx->preallocated = 0;
 
     return 0;