Update zero_copy(9) man page to note the renamed kernel options
and to warn about unsafeness of COW based sends.
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=241932
@ -25,7 +25,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd December 5, 2004
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.Dd October 23, 2012
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.Dt ZERO_COPY 9
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.Os
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.Sh NAME
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@ -33,7 +33,8 @@
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.Nm zero_copy_sockets
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.Nd "zero copy sockets code"
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.Sh SYNOPSIS
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.Cd "options ZERO_COPY_SOCKETS"
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.Cd "options SOCKET_SEND_COW"
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.Cd "options SOCKET_RECV_PFLIP"
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.Sh DESCRIPTION
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The
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.Fx
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@ -155,6 +156,8 @@ variables respectively.
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.Xr sendfile 2 ,
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.Xr socket 2 ,
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.Xr ti 4
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.Sh BUGS
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The COW based send mechanism is not safe and may result in kernel crashes.
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.Sh HISTORY
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The zero copy sockets code first appeared in
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.Fx 5.0 ,
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