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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-01-24 18:14:34 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-01-30 02:06:12 -0500 |
| commit | e6f810759505bc86c009854b82cc495ffd8eb020 (patch) | |
| tree | 1590631fe3b222d49015dd53b421a5547e13e4dc /fs/nfs/delegation.h | |
| parent | 99fadcd76465842c014c88b8c9c19b457e9debc0 (diff) | |
| download | lwn-e6f810759505bc86c009854b82cc495ffd8eb020.tar.gz lwn-e6f810759505bc86c009854b82cc495ffd8eb020.zip | |
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.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h index 5874ce7fdbae..f1c5e2a5d88e 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); |