[PATCH v2] Handle OFD lock flags

["Stefan Agner" <stefan@agner.ch>]

Linux 3.15 and newer introduced new open file description locks.
Currently pseudo prints a warning if fcntl is used with OFD locks:
  unknown fcntl argument 37, assuming long argument.

However, calls to fcntl with a OFC lock set need a struct flock
pointer. Treat F_OFD_GETLK (and friends) like F_GETLK (and friends).

This issue has been observed with ostree. Comparing strace output
between two runs with/without this patch shows the same fcntl calls,
hence it seems not to matter in practice.

Signed-off-by: Stefan Agner <stefan@agner.ch>
---
 ports/linux/guts/fcntl.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ports/linux/guts/fcntl.c b/ports/linux/guts/fcntl.c
index 4dd9796..434c7f3 100644
--- a/ports/linux/guts/fcntl.c
+++ b/ports/linux/guts/fcntl.c
@@ -52,6 +52,11 @@
 	case F_GETLK:
 	case F_SETLK:
 	case F_SETLKW:
+#ifdef F_OFD_GETLK
+	case F_OFD_GETLK:
+	case F_OFD_SETLK:
+	case F_OFD_SETLKW:
+#endif
 		rc = real_fcntl(fd, cmd, lock);
 		break;
 #if defined(F_GETLK64) && (F_GETLK64 != F_GETLK)
-- 
2.27.0