tree 02a2a6df1a54f8403d624215ca0639b96e1ea8e6
parent 2929bc3329f4c7e4df400acca2b1844492650bfd
author Trond Myklebust <trond.myklebust@hammerspace.com> 1632854024 -0400
committer Trond Myklebust <trond.myklebust@hammerspace.com> 1633308547 -0400

NFS: Further optimisations for 'ls -l'

If a user is doing 'ls -l', we have a heuristic in GETATTR that tells
the readdir code to try to use READDIRPLUS in order to refresh the inode
attributes. In certain cirumstances, we also try to invalidate the
remaining directory entries in order to ensure this refresh.

If there are multiple readers of the directory, we probably should avoid
invalidating the page cache, since the heuristic breaks down in that
situation anyway.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Tested-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>