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authorIngo Molnar <mingo@elte.hu>2006-04-10 15:18:58 +0200
committerJens Axboe <axboe@suse.de>2006-04-10 15:18:58 +0200
commit529565dcb1581c9a1e3f6df1c1763ca3e0f0d512 (patch)
treee8069cc17f887ad86f8dee0d96640a2f19bf4112 /fs/pipe.c
parent[PATCH] introduce a "kernel-internal pipe object" abstraction (diff)
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[PATCH] splice: add optional input and output offsets
add optional input and output offsets to sys_splice(), for seekable file descriptors: asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, int fd_out, loff_t __user *off_out, size_t len, unsigned int flags); semantics are straightforward: f_pos will be updated with the offset provided by user-space, before the splice transfer is about to begin. Providing a NULL offset pointer means the existing f_pos will be used (and updated in situ). Providing an offset for a pipe results in -ESPIPE. Providing an invalid offset pointer results in -EFAULT. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'fs/pipe.c')
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