Module: xenomai-3
Branch: next
Commit: 931ba88ab98597f387f7c73d56ae1758d315a2a3

Author: Philippe Gerum <>
Date:   Thu Jul  7 17:05:16 2016 +0200

cobalt/syscalls: allow for handing over mode selection to syscall handlers

Specific system calls may benefit from dealing with the caller's
runtime mode by themselves, depending on internal information which
the generic syscall dispatcher does not have access to.

To this end, a new syscall mode called "handover" is
introduced. Syscalls bearing this mode bit are always entered from the
current calling domain. The syscall handler may return -ENOSYS to
trigger a switch to the converse domain until all domains have been
visited once, at which point the syscall fails with -ENOSYS


 kernel/cobalt/posix/syscall.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/cobalt/posix/syscall.c b/kernel/cobalt/posix/syscall.c
index 0aeff28..25d21ea 100644
--- a/kernel/cobalt/posix/syscall.c
+++ b/kernel/cobalt/posix/syscall.c
@@ -737,7 +737,6 @@ restart:
                 * domain. This is a slow path, so proceed with any
                 * pending schedparam update on the fly.
-               switched = 0;
                if (thread)

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