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splice_from_pipe_feed

NAME

splice_from_pipe_feed - feed available data from a pipe to a file

SYNOPSIS

int splice_from_pipe_feed(struct pipe_inode_info * pipe, struct splice_desc * sd, splice_actor * actor);

ARGUMENTS

pipe

pipe to splice from

sd

information to actor

actor

handler that splices the data

DESCRIPTION

This function loops over the pipe and calls actor to do the actual moving of a single struct pipe_buffer to the desired destination. It returns when there's no more buffers left in the pipe or if the requested number of bytes (sd->total_len) have been copied. It returns a positive number (one) if the pipe needs to be filled with more data, zero if the required number of bytes have been copied and -errno on error.

This, together with splice_from_pipe_{begin,end,next}, may be used to implement the functionality of __splice_from_pipe when locking is required around copying the pipe buffers to the destination.

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