NFS: Only change the cookie verifier if the directory page cache is empty

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The cached NFSv3/v4 readdir cookies are associated with a verifier,
which is checked by the server on subsequent calls to readdir, and is
only expected to change when the cookies (and hence also the page cache
contents) are considered invalid.
We therefore do have to store the verifier, but only when the page cache
is empty.

Fixes: b593c09f83 ("NFS: Improve handling of directory verifiers")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

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Trond Myklebust 2021-03-17 08:46:19 -04:00

parent 13884ff2be

commit f892c41c14

1 changed files with 6 additions and 1 deletions

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fs/nfs/dir.c

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