Date: Fri, 19 Apr 2002 06:46:27 -0700 (PDT) From: Robert Watson <rwatson@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern uipc_syscalls.c Message-ID: <200204191346.g3JDkR942486@freefall.freebsd.org>
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rwatson 2002/04/19 06:46:27 PDT
Modified files:
sys/kern uipc_syscalls.c
Log:
In sendfile(), use the vn_rdwr() helper function, rather than manually
constructing a struct aio and invoking VOP_READ() directly. This cleans
up the code a little, but also has the advantage of making sure almost
all vnode read/write access in the kernel goes through the helper
function, meaning that instrumentation of that helper function can impact
almost all relevant read/write operations. In this case, it permits us
to put MAC hooks into vn_rdwr() and not modify uipc_syscalls.c (yet).
In general, if helper vn_*() functions exist, they should be used in
preference to direct VOP's in system call service code.
Submitted by: green
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
Revision Changes Path
1.109 +4 -13 src/sys/kern/uipc_syscalls.c
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