diff options
| author | Christoph Hellwig <hch@infradead.org> | 2011-03-01 01:34:21 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-03-11 15:38:43 -0500 |
| commit | ea8eecdd11ee6becd09c095c8efa88aa7df95961 (patch) | |
| tree | 4db9c584989d006790637e255657a010c8243cb9 /fs/nfs/nfs4filelayout.h | |
| parent | cbdabc7f8bf14ca1d40ab1cb86f64b3bc09716e8 (diff) | |
NFSv4.1 move deviceid cache to filelayout driver
No need for generic cache with only one user.
Keep a simple hash of deviceids in the filelayout driver.
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Acked-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4filelayout.h')
| -rw-r--r-- | fs/nfs/nfs4filelayout.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index 9fef76e0493..23f1e1e2a0f 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -56,7 +56,9 @@ struct nfs4_pnfs_ds { }; struct nfs4_file_layout_dsaddr { - struct pnfs_deviceid_node deviceid; + struct hlist_node node; + struct nfs4_deviceid deviceid; + atomic_t ref; u32 stripe_count; u8 *stripe_indices; u32 ds_num; @@ -86,7 +88,6 @@ FILELAYOUT_LSEG(struct pnfs_layout_segment *lseg) extern struct nfs_fh * nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, u32 j); -extern void nfs4_fl_free_deviceid_callback(struct pnfs_deviceid_node *); extern void print_ds(struct nfs4_pnfs_ds *ds); extern void print_deviceid(struct nfs4_deviceid *dev_id); u32 nfs4_fl_calc_j_index(struct pnfs_layout_segment *lseg, loff_t offset); @@ -94,7 +95,8 @@ u32 nfs4_fl_calc_ds_index(struct pnfs_layout_segment *lseg, u32 j); struct nfs4_pnfs_ds *nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx); extern struct nfs4_file_layout_dsaddr * -nfs4_fl_find_get_deviceid(struct nfs_client *, struct nfs4_deviceid *dev_id); +nfs4_fl_find_get_deviceid(struct nfs4_deviceid *dev_id); +extern void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); struct nfs4_file_layout_dsaddr * get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id); |