NFSD: Report zero space limit for write delegations

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Replace the -1 (no limit) with a zero (no reserved space).

This prevents certain non-determinant client behavior, such as
silly-renaming a file when the only open reference is a write
delegation. Such a rename can leave unexpected .nfs files in a
directory that is otherwise supposed to be empty.

Note that other server implementations that support write delegation
also set this field to zero.

Suggested-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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This commit is contained in:

Chuck Lever 2023-07-19 11:33:09 -04:00

parent fd19ca36fd

commit 50bce06f0e

1 changed files with 6 additions and 3 deletions

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fs/nfsd/nfs4xdr.c

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