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NFSv4: Fix CB_RECALL_ANY to only return delegations that are not in use

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2013-04-03 19:27:52 -04:00
parent b02ba0b660
commit 826e001308
3 changed files with 9 additions and 9 deletions
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2
fs/nfs/callback_proc.c
View file

@ -500,7 +500,7 @@ __be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy,
&args->craa_type_mask))
pnfs_recall_all_layouts(cps->clp);
if (flags)
nfs_expire_all_delegation_types(cps->clp, flags);
nfs_expire_unused_delegation_types(cps->clp, flags);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
return status;

14
fs/nfs/delegation.c
View file

@ -564,7 +564,7 @@ void nfs_server_return_all_delegations(struct nfs_server *server)
}
}
static void nfs_mark_return_all_delegation_types(struct nfs_server *server,
static void nfs_mark_return_unused_delegation_types(struct nfs_server *server,
fmode_t flags)
{
struct nfs_delegation *delegation;
@ -573,18 +573,18 @@ static void nfs_mark_return_all_delegation_types(struct nfs_server *server,
if ((delegation->type == (FMODE_READ|FMODE_WRITE)) && !(flags & FMODE_WRITE))
continue;
if (delegation->type & flags)
nfs_mark_return_delegation(server, delegation);
nfs_mark_return_if_closed_delegation(server, delegation);
}
}
static void nfs_client_mark_return_all_delegation_types(struct nfs_client *clp,
static void nfs_client_mark_return_unused_delegation_types(struct nfs_client *clp,
fmode_t flags)
{
struct nfs_server *server;
rcu_read_lock();
list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link)
nfs_mark_return_all_delegation_types(server, flags);
nfs_mark_return_unused_delegation_types(server, flags);
rcu_read_unlock();
}
@ -601,14 +601,14 @@ void nfs_remove_bad_delegation(struct inode *inode)
EXPORT_SYMBOL_GPL(nfs_remove_bad_delegation);
/**
* nfs_expire_all_delegation_types
* nfs_expire_unused_delegation_types
* @clp: client to process
* @flags: delegation types to expire
*
*/
void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags)
void nfs_expire_unused_delegation_types(struct nfs_client *clp, fmode_t flags)
{
nfs_client_mark_return_all_delegation_types(clp, flags);
nfs_client_mark_return_unused_delegation_types(clp, flags);
nfs_delegation_run_state_manager(clp);
}

2
fs/nfs/delegation.h
View file

@ -42,7 +42,7 @@ void nfs_inode_return_delegation_noreclaim(struct inode *inode);
struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs_fh *fhandle);
void nfs_server_return_all_delegations(struct nfs_server *);
void nfs_expire_all_delegations(struct nfs_client *clp);
void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags);
void nfs_expire_unused_delegation_types(struct nfs_client *clp, fmode_t flags);
void nfs_expire_unreferenced_delegations(struct nfs_client *clp);
int nfs_client_return_marked_delegations(struct nfs_client *clp);
int nfs_delegations_present(struct nfs_client *clp);