freebsd-skq/sys/ufs
msmith 15e6194107 In the author's words:
These diffs implement the first stage of a VOP_{GET|PUT}PAGES pushdown
for local media FS's.

See ffs_putpages in /sys/ufs/ufs/ufs_readwrite.c for implementation
details for generic *_{get|put}pages for local media FS's.  Support
is trivial to add for any FS that formerly relied on the default
behaviour of the vnode_pager in in EOPNOTSUPP cases (just copy the
ffs_getpages() code for the FS in question's *_{get|put}pages).

Obviously, it would be better if each local media FS implemented a
more optimal method, instead of calling an exported interface from
the /sys/vm/vnode_pager.c, but this is a necessary first step in
getting the FS's to a point where they can be supplied with better
implementations on a case-by-case basis.

Obviously, the cd9660_putpages() can be rather trivial (since it
is a read-only FS type 8-)).

A slight (temporary) modification is made to print a diagnostic message
in the case where the underlying filesystem attempts to engage in the
previous behaviour.  Failure is likely to be ungraceful.

Submitted by:	terry@freebsd.org (Terry Lambert)
1998-02-26 06:39:59 +00:00
..
ffs In the author's words: 1998-02-26 06:39:59 +00:00
mfs Fix a panic resulting from executing off an MFS image. This corrects the 1998-02-16 23:55:53 +00:00
ufs In the author's words: 1998-02-26 06:39:59 +00:00