nfsd: grant read delegations to clients holding writes

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It's OK to grant a read delegation to a client that holds a write,
as long as it's the only client holding the write.

We originally tried to do this in commit 94415b06eb ("nfsd4: a
client's own opens needn't prevent delegations"), which had to be
reverted in commit 6ee65a7730 ("Revert "nfsd4: a client's own
opens needn't prevent delegations"").

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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This commit is contained in:

J. Bruce Fields 2021-04-16 14:00:18 -04:00 • committed by Chuck Lever

parent ebd9d2c2f5

commit aba2072f45

2 changed files with 71 additions and 14 deletions

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3

fs/locks.c

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82

fs/nfsd/nfs4state.c

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