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nfsd4: return delegation immediately if lease fails 

This case shouldn't happen--the administrator shouldn't really allow
other applications access to the export until clients have had the
chance to reclaim their state--but if it does then we should set the
"return this lease immediately" bit on the reply.  That still leaves
some small races, but it's the best the protocol allows us to do in the
case a lease is ripped out from under us....

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2013-06-21 11:05:32 -04:00
parent 0a262ffb75
commit d08d32e6e5
1 changed files with 3 additions and 1 deletions
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4
fs/nfsd/nfs4state.c
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@ -3143,8 +3143,10 @@ out_free:
out_no_deleg:
open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE;
if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS &&
open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE) {
dprintk("NFSD: WARNING: refusing delegation reclaim\n");
open->op_recall = 1;
}
/* 4.1 client asking for a delegation? */
if (open->op_deleg_want)