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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /fs/nfs/delegation.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'fs/nfs/delegation.h')
-rw-r--r-- | fs/nfs/delegation.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h new file mode 100644 index 00000000..cd6a7a8d --- /dev/null +++ b/fs/nfs/delegation.h @@ -0,0 +1,79 @@ +/* + * linux/fs/nfs/delegation.h + * + * Copyright (c) Trond Myklebust + * + * Definitions pertaining to NFS delegated files + */ +#ifndef FS_NFS_DELEGATION_H +#define FS_NFS_DELEGATION_H + +#if defined(CONFIG_NFS_V4) +/* + * NFSv4 delegation + */ +struct nfs_delegation { + struct list_head super_list; + struct rpc_cred *cred; + struct inode *inode; + nfs4_stateid stateid; + fmode_t type; + loff_t maxsize; + __u64 change_attr; + unsigned long flags; + spinlock_t lock; + struct rcu_head rcu; +}; + +enum { + NFS_DELEGATION_NEED_RECLAIM = 0, + NFS_DELEGATION_RETURN, + NFS_DELEGATION_REFERENCED, +}; + +int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res); +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_super_return_all_delegations(struct super_block *sb); +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_unreferenced_delegations(struct nfs_client *clp); +int nfs_client_return_marked_delegations(struct nfs_client *clp); +int nfs_delegations_present(struct nfs_client *clp); +void nfs_remove_bad_delegation(struct inode *inode); + +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 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); +bool nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode, fmode_t flags); + +void nfs_mark_delegation_referenced(struct nfs_delegation *delegation); +int nfs_have_delegation(struct inode *inode, fmode_t flags); + +#else +static inline int nfs_have_delegation(struct inode *inode, fmode_t flags) +{ + return 0; +} + +static inline int nfs_inode_return_delegation(struct inode *inode) +{ + return 0; +} +#endif + +static inline int nfs_have_delegated_attributes(struct inode *inode) +{ + return nfs_have_delegation(inode, FMODE_READ) && + !(NFS_I(inode)->cache_validity & NFS_INO_REVAL_FORCED); +} + +#endif |