On Tue, 2007-08-21 at 13:15 -0700, Andrew Morton wrote:
> On Tue, 21 Aug 2007 17:26:09 +0800
> Ian Kent <[email protected]> wrote:
>
> > Due to a change to fs/dcache.c:d_lookup() in the 2.6 kernel whereby only
> > hashed dentrys are returned the negative caching of mount failures
> > stopped working in the autofs4 module for nobrowse mount (ie. directory
> > created at mount time and removed at umount or following a mount
> > failure).
> >
> > This patch keeps track of the dentrys from mount fails in order to be
> > able check the timeout since the last fail and return the appropriate
> > status. In addition the timeout value is settable at load time as a
> > module option and via sysfs using the module
> > parameter /sys/module/autofs4/parameters/negative_timeout.
>
> Boy, that's a complex-looking patch. I think I'll sit on this one
> for 2.6.24 ;)
Yes, that's fine .. the principle isn't that complex.
>
> It seems to use a lot of list_for_each[_safe] which could
> have been coded as list_for_each_entry[_safe], btw.
Mmm .. good point. I've not noticed the list_for_each_entry* macros.
Ian
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