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authorJens Axboe <axboe@suse.de>2006-03-30 17:15:30 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-31 00:28:18 +0400
commit5274f052e7b3dbd81935772eb551dfd0325dfa9d (patch)
treec79f813ec513660edb6f1e4a75cb366c6b84f53f /include/asm-ia64
parent5d4fe2c1ce83c3e967ccc1ba3d580c1a5603a866 (diff)
downloadlinux-5274f052e7b3dbd81935772eb551dfd0325dfa9d.tar.xz
[PATCH] Introduce sys_splice() system call
This adds support for the sys_splice system call. Using a pipe as a transport, it can connect to files or sockets (latter as output only). From the splice.c comments: "splice": joining two ropes together by interweaving their strands. This is the "extended pipe" functionality, where a pipe is used as an arbitrary in-memory buffer. Think of a pipe as a small kernel buffer that you can use to transfer data from one end to the other. The traditional unix read/write is extended with a "splice()" operation that transfers data buffers to or from a pipe buffer. Named by Larry McVoy, original implementation from Linus, extended by Jens to support splicing to files and fixing the initial implementation bugs. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/unistd.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h
index 019956c613e4..36070c1014d8 100644
--- a/include/asm-ia64/unistd.h
+++ b/include/asm-ia64/unistd.h
@@ -285,12 +285,13 @@
#define __NR_faccessat 1293
/* 1294, 1295 reserved for pselect/ppoll */
#define __NR_unshare 1296
+#define __NR_splice 1297
#ifdef __KERNEL__
#include <linux/config.h>
-#define NR_syscalls 273 /* length of syscall table */
+#define NR_syscalls 274 /* length of syscall table */
#define __ARCH_WANT_SYS_RT_SIGACTION