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net: af_unix: implement splice for stream af_unix sockets

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unix_stream_recvmsg is refactored to unix_stream_read_generic in this
patch and enhanced to deal with pipe splicing. The refactoring is
inneglible, we mostly have to deal with a non-existing struct msghdr
argument.

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hannes Frederic Sowa
2015-05-21 17:00:01 +02:00
committed by David S. Miller
parent a60e3cc7c9
commit 2b514574f7
3 changed files with 121 additions and 21 deletions
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fs/splice.c
+1
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@@ -261,6 +261,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
return ret;
}
EXPORT_SYMBOL_GPL(splice_to_pipe);
void spd_release_page(struct splice_pipe_desc *spd, unsigned int i)
{