[PATCH] Add support for the sys_vmsplice syscall

sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice()
moves data to a pipe, with the input being a user address range instead.

This uses an approach suggested by Linus, where we can hold partial ranges
inside the pages[] map. Hopefully this will be useful for network
receive support as well.

Signed-off-by: Jens Axboe <axboe@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index c612f1a62772..34325e292596 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -303,8 +303,9 @@
 #define __NR_unshare            282
 #define __NR_splice             283
 #define __NR_tee                284
+#define __NR_vmsplice           285
 
-#define __NR_syscalls           285
+#define __NR_syscalls           286
 
 #ifdef __KERNEL__
 #define __NR__exit __NR_exit