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NFSv4: nfs4_return_incompatible_delegation() should check delegation validity

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Ensure that we check that the delegation is valid in
nfs4_return_incompatible_delegation() before we try to return it.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2019-10-27 13:38:45 -04:00
parent 1deed57235
commit 40e6aa10aa
1 changed files with 1 additions and 1 deletions
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fs/nfs/nfs4proc.c
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@ -1796,7 +1796,7 @@ static void nfs4_return_incompatible_delegation(struct inode *inode, fmode_t fmo
fmode &= FMODE_READ|FMODE_WRITE;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
delegation = nfs4_get_valid_delegation(inode);
if (delegation == NULL || (delegation->type & fmode) == fmode) {
rcu_read_unlock();
return;