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NFSv4: nfs4_callback_getattr() should ignore revoked delegations 

If the delegation has been revoked, ignore it.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
alistair/sunxi64-5.5-dsi
Trond Myklebust 2019-10-22 08:35:57 -04:00
parent 333ac786a1
commit 5decae1623
1 changed files with 1 additions and 3 deletions
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4
fs/nfs/callback_proc.c
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@ -26,7 +26,6 @@ __be32 nfs4_callback_getattr(void *argp, void *resp,
struct cb_getattrargs *args = argp;
struct cb_getattrres *res = resp;
struct nfs_delegation *delegation;
struct nfs_inode *nfsi;
struct inode *inode;
res->status = htonl(NFS4ERR_OP_NOT_IN_SESSION);
@ -47,9 +46,8 @@ __be32 nfs4_callback_getattr(void *argp, void *resp,
-ntohl(res->status));
goto out;
}
nfsi = NFS_I(inode);
rcu_read_lock();
delegation = rcu_dereference(nfsi->delegation);
delegation = nfs4_get_valid_delegation(inode);
if (delegation == NULL || (delegation->type & FMODE_WRITE) == 0)
goto out_iput;
res->size = i_size_read(inode);