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| author | Jens Axboe <axboe@suse.de> | 2006-03-30 17:15:30 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-31 00:28:18 +0400 |
| commit | 5274f052e7b3dbd81935772eb551dfd0325dfa9d (patch) | |
| tree | c79f813ec513660edb6f1e4a75cb366c6b84f53f /fs/ext2/file.c | |
| parent | 5d4fe2c1ce83c3e967ccc1ba3d580c1a5603a866 (diff) | |
| download | linux-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 'fs/ext2/file.c')
| -rw-r--r-- | fs/ext2/file.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext2/file.c b/fs/ext2/file.c index 509cceca04db..23e2c7ccec1d 100644 --- a/fs/ext2/file.c +++ b/fs/ext2/file.c @@ -53,6 +53,8 @@ const struct file_operations ext2_file_operations = { .readv = generic_file_readv, .writev = generic_file_writev, .sendfile = generic_file_sendfile, + .splice_read = generic_file_splice_read, + .splice_write = generic_file_splice_write, }; #ifdef CONFIG_EXT2_FS_XIP |