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| author | Jens Axboe <axboe@suse.de> | 2006-04-11 15:51:17 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2006-04-11 15:51:17 +0200 |
| commit | 70524490ee2ea1bbf6cee6c106597b3ac25a3fc2 (patch) | |
| tree | c61dd500035bc3e0dea364777de1b7a58b41a75c /include/asm-ia64 | |
| parent | cbb7e577e732f576b9f399bc2600bdc0626c68dc (diff) | |
| download | linux-70524490ee2ea1bbf6cee6c106597b3ac25a3fc2.tar.gz linux-70524490ee2ea1bbf6cee6c106597b3ac25a3fc2.tar.bz2 linux-70524490ee2ea1bbf6cee6c106597b3ac25a3fc2.zip | |
[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-ia64')
| -rw-r--r-- | include/asm-ia64/unistd.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h index 1c749acca021..a40ebec6aeeb 100644 --- a/include/asm-ia64/unistd.h +++ b/include/asm-ia64/unistd.h @@ -289,12 +289,13 @@ #define __NR_set_robust_list 1298 #define __NR_get_robust_list 1299 #define __NR_sync_file_range 1300 +#define __NR_tee 1301 #ifdef __KERNEL__ #include <linux/config.h> -#define NR_syscalls 277 /* length of syscall table */ +#define NR_syscalls 278 /* length of syscall table */ #define __ARCH_WANT_SYS_RT_SIGACTION |