CVS log for src/sys/kern/vfs_lockf.c

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Default branch: MAIN
Current tag: netbsd-5-1-RELEASE

Revision 1.69.4.3 / (download) - annotate - [select for diffs], Sat Sep 5 11:36:29 2009 UTC (14 years, 7 months ago) by bouyer
Branch: netbsd-5
CVS Tags: netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, matt-nb5-pq3-base, matt-nb5-pq3
Changes since 1.69.4.2: +15 -8 lines
Diff to previous 1.69.4.2 (colored) to branchpoint 1.69 (colored) next main 1.70 (colored)

Pull up following revision(s) (requested by dsl in ticket #900):
	sys/kern/vfs_lockf.c: revision 1.72
lockf() passes its arguments through to fcntl() but is supposed to
support -ve lengths (lock area before current offset).
Nothing in libc or the kernel allowed for this, so some random part
of the file would get locked (no idea which bits).
Although this could probably be fixed in libc, the stubs for posix file
locks for emulations could easily get into the kernel with -ve lengths.
So fixing in the kernel avoids those problems.
This also fixes PR/41620 (attempting to lock negative offsets) - which
is what I was looking into!

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