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authorTrond Myklebust <Trond.Myklebust@netapp.com>2008-01-24 18:14:34 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2008-01-30 02:06:12 -0500
commite6f810759505bc86c009854b82cc495ffd8eb020 (patch)
tree1590631fe3b222d49015dd53b421a5547e13e4dc /fs/nfs/delegation.h
parent99fadcd76465842c014c88b8c9c19b457e9debc0 (diff)
downloadop-kernel-dev-e6f810759505bc86c009854b82cc495ffd8eb020.zip
op-kernel-dev-e6f810759505bc86c009854b82cc495ffd8eb020.tar.gz
NFS: Add an asynchronous delegreturn operation for use in nfs_clear_inode
Otherwise, there is a potential deadlock if the last dput() from an NFSv4 close() or other asynchronous operation leads to nfs_clear_inode calling the synchronous delegreturn. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/delegation.h')
-rw-r--r--fs/nfs/delegation.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index 5874ce7..f1c5e2a 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -29,6 +29,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
int nfs_inode_return_delegation(struct inode *inode);
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
+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_return_all_delegations(struct super_block *sb);
@@ -39,7 +40,7 @@ void nfs_delegation_mark_reclaim(struct nfs_client *clp);
void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
/* NFSv4 delegation-related procedures */
-int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid);
+int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync);
int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid);
int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl);
int nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode);
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