Re: [autofs] [PATCH] autofs4 needs to force fail return revalidate

[Jeff Moyer]

==> Regarding [autofs] [PATCH] autofs4 needs to force fail return revalidate; Ian Kent <raven@xxxxxxxxxx> adds:

raven> Hi Andrew,

raven> I didn't get any adverse (or other feedback) for this patch after
raven> posting an RFC to LKML so here it is.

raven> For a long time now I have had a problem with not being able to
raven> return a lookup failure on an existsing directory. In autofs this
raven> corresponds to a mount failure on a autofs managed mount entry that
raven> is browsable (and so the mount point directory exists).

raven> While this problem has been present for a long time I've avoided
raven> resolving it because it was not very visible. But now that autofs v5
raven> has "mount and expire on demand" of nested multiple mounts, such as
raven> is found when mounting an export list from a server, solving the
raven> problem cannot be avoided any longer.

raven> I've tried very hard to find a way to do this entirely within the
raven> autofs4 module but have not been able to find a satisfactory way to
raven> achieve it.

raven> So, I need to propose a change to the VFS.

raven> Signed-off-by: Ian Kent <raven@xxxxxxxxxx>

Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>

-Jeff
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