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| author | Benny Halevy <bhalevy@panasas.com> | 2011-05-19 22:14:47 -0400 |
|---|---|---|
| committer | Boaz Harrosh <bharrosh@panasas.com> | 2011-05-29 12:09:48 +0300 |
| commit | a1eaecbc4c8307e27772d6584ef85a2e93250661 (patch) | |
| tree | 940549d45db98a5bcfe22501de0bbe9c96de4c8e /fs/nfs/pnfs.h | |
| parent | 45df3c8b0f3a58facb125d7631890426706c0bfa (diff) | |
| download | blackbird-op-linux-a1eaecbc4c8307e27772d6584ef85a2e93250661.tar.gz blackbird-op-linux-a1eaecbc4c8307e27772d6584ef85a2e93250661.zip | |
NFSv4.1: make deviceid cache global
Move deviceid cache from the pnfs files layout driver to the
generic layer in preparation for the objects layout driver.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
| -rw-r--r-- | fs/nfs/pnfs.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 720bb9da3f9b..3831ad04a231 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -157,6 +157,23 @@ bool pnfs_roc_drain(struct inode *ino, u32 *barrier); void pnfs_set_layoutcommit(struct nfs_write_data *wdata); int pnfs_layoutcommit_inode(struct inode *inode, bool sync); +/* pnfs_dev.c */ +struct nfs4_deviceid_node { + struct hlist_node node; + const struct nfs_client *nfs_client; + struct nfs4_deviceid deviceid; + atomic_t ref; +}; + +void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id); +struct nfs4_deviceid_node *nfs4_find_get_deviceid(const struct nfs_client *, const struct nfs4_deviceid *); +struct nfs4_deviceid_node *nfs4_unhash_put_deviceid(const struct nfs_client *, const struct nfs4_deviceid *); +void nfs4_init_deviceid_node(struct nfs4_deviceid_node *, + const struct nfs_client *, + const struct nfs4_deviceid *); +struct nfs4_deviceid_node *nfs4_insert_deviceid_node(struct nfs4_deviceid_node *); +bool nfs4_put_deviceid_node(struct nfs4_deviceid_node *); + static inline int lo_fail_bit(u32 iomode) { return iomode == IOMODE_RW ? |
