NFS: Don't revalidate the directory permissions on a lookup failure

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[ Upstream commit 82e7ca1334 ]

There should be no reason to expect the directory permissions to change
just because the directory contents changed or a negative lookup timed
out. So let's avoid doing a full call to nfs_mark_for_revalidate() in
that case.
Furthermore, if this is a negative dentry, and we haven't actually done
a new lookup, then we have no reason yet to believe the directory has
changed at all. So let's remove the gratuitous directory inode
invalidation altogether when called from
nfs_lookup_revalidate_negative().

Reported-by: Geert Jansen <gerardu@amazon.com>
Fixes: 5ceb9d7fda ("NFS: Refactor nfs_lookup_revalidate()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Trond Myklebust 2021-03-08 14:42:51 -05:00 • committed by Greg Kroah-Hartman

parent faa48b23d0

commit dd756d05be

1 changed files with 17 additions and 3 deletions

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fs/nfs/dir.c

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