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NFSv4: Ensure that we don't reap a delegation that is being returned

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Signed-off-by: Trond Myklebust <[email protected]>
This commit is contained in:
Trond Myklebust 2015-02-26 13:59:38 -05:00
commit b04b22f4ca
1 changed files with 7 additions and 5 deletions
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12
fs/nfs/delegation.c
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@ -815,12 +815,14 @@ restart:
inode = nfs_delegation_grab_inode(delegation);
if (inode == NULL)
continue;
delegation = nfs_detach_delegation(NFS_I(inode),
delegation, server);
delegation = nfs_start_delegation_return_locked(NFS_I(inode));
rcu_read_unlock();
if (delegation != NULL)
nfs_free_delegation(delegation);
if (delegation != NULL) {
delegation = nfs_detach_delegation(NFS_I(inode),
delegation, server);
if (delegation != NULL)
nfs_free_delegation(delegation);
}
iput(inode);
goto restart;
}