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authorJens Axboe <axboe@suse.de>2006-04-11 15:51:17 +0200
committerJens Axboe <axboe@suse.de>2006-04-11 15:51:17 +0200
commit70524490ee2ea1bbf6cee6c106597b3ac25a3fc2 (patch)
treec61dd500035bc3e0dea364777de1b7a58b41a75c /include/asm-powerpc/unistd.h
parentcbb7e577e732f576b9f399bc2600bdc0626c68dc (diff)
downloadblackbird-op-linux-70524490ee2ea1bbf6cee6c106597b3ac25a3fc2.tar.gz
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[PATCH] splice: add support for sys_tee()
Basically an in-kernel implementation of tee, which uses splice and the pipe buffers as an intelligent way to pass data around by reference. Where the user space tee consumes the input and produces a stdout and file output, this syscall merely duplicates the data inside a pipe to another pipe. No data is copied, the output just grabs a reference to the input pipe data. Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'include/asm-powerpc/unistd.h')
-rw-r--r--include/asm-powerpc/unistd.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index 536ba0873052..c612f1a62772 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -302,8 +302,9 @@
#define __NR_ppoll 281
#define __NR_unshare 282
#define __NR_splice 283
+#define __NR_tee 284
-#define __NR_syscalls 284
+#define __NR_syscalls 285
#ifdef __KERNEL__
#define __NR__exit __NR_exit
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