Date: Sat, 31 Mar 2001 08:20:06 -0800 (PST) From: Robert Watson <rwatson@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern syscalls.master vfs_syscalls.c src/sys/sys extattr.h Message-ID: <200103311620.f2VGK6Z29105@freefall.freebsd.org>
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rwatson 2001/03/31 08:20:06 PST
Modified files:
sys/kern syscalls.master vfs_syscalls.c
sys/sys extattr.h
Log:
o Introduce extattr_{delete,get,set}_fd() to allow extended attribute
operations on file descriptors, which complement the existing set of
calls, extattr_{delete,get,set}_file() which act on paths. In doing
so, restructure the system call implementation such that the two sets
of functions share most of the relevant code, rather than duplicating
it. This pushes the vnode locking into the shared code, but keeps
the copying in of some arguments in the system call code. Allowing
access via file descriptors reduces the opportunity for race
conditions when managing extended attributes.
Obtained from: TrustedBSD Project
Revision Changes Path
1.87 +9 -1 src/sys/kern/syscalls.master
1.187 +214 -75 src/sys/kern/vfs_syscalls.c
1.6 +14 -9 src/sys/sys/extattr.h
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