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nfs: Subsequent READDIR calls should carry non-zero cookieverifier

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If the loop in nfs_readdir_xdr_to_array() runs more than once, subsequent
READDIR RPCs may wrongly carry a zero cookie verifier and non-zero cookie.
Make sure subsequent calls to READDIR carry the cookie verifier returned
by the first call.

Signed-off-by: Nagendra S Tomar <natomar@microsoft.com>
Fixes: b593c09f83 ("NFS: Improve handling of directory verifiers")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Nagendra S Tomar 2021-03-16 10:25:14 +00:00 committed by Trond Myklebust
parent 6453bcd0d8
commit ee3707ae2c
1 changed files with 2 additions and 0 deletions
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fs/nfs/dir.c
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@ -866,6 +866,8 @@ static int nfs_readdir_xdr_to_array(struct nfs_readdir_descriptor *desc,
break;
}
verf_arg = verf_res;
status = nfs_readdir_page_filler(desc, entry, pages, pglen,
arrays, narrays);
} while (!status && nfs_readdir_page_needs_filling(page));