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| author | Jens Axboe <axboe@suse.de> | 2006-03-30 15:15:30 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-30 12:28:18 -0800 |
| commit | 5274f052e7b3dbd81935772eb551dfd0325dfa9d (patch) | |
| tree | c79f813ec513660edb6f1e4a75cb366c6b84f53f /arch | |
| parent | 5d4fe2c1ce83c3e967ccc1ba3d580c1a5603a866 (diff) | |
| download | op-kernel-dev-5274f052e7b3dbd81935772eb551dfd0325dfa9d.zip op-kernel-dev-5274f052e7b3dbd81935772eb551dfd0325dfa9d.tar.gz | |
[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 'arch')
| -rw-r--r-- | arch/i386/kernel/syscall_table.S | 1 | ||||
| -rw-r--r-- | arch/ia64/kernel/entry.S | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S index 326595f..ce3ef4f 100644 --- a/arch/i386/kernel/syscall_table.S +++ b/arch/i386/kernel/syscall_table.S @@ -312,3 +312,4 @@ ENTRY(sys_call_table) .long sys_unshare /* 310 */ .long sys_set_robust_list .long sys_get_robust_list + .long sys_splice diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index 0e3eda9..750e8e7 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1605,5 +1605,6 @@ sys_call_table: data8 sys_ni_syscall // reserved for pselect data8 sys_ni_syscall // 1295 reserved for ppoll data8 sys_unshare + data8 sys_splice .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls |
