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| author | Christoph Hellwig <hch@lst.de> | 2014-09-03 08:27:57 +0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-09-10 23:47:03 +0400 |
| commit | 661373b13d0490ff410a2133d4a7a117f2dd037e (patch) | |
| tree | a2f515ecbc46316adfd1b937d62eeb9a48957d1c /fs/nfs/filelayout/filelayout.h | |
| parent | 848746bd247cdc3ce1d103e92913316445763778 (diff) | |
| download | linux-661373b13d0490ff410a2133d4a7a117f2dd037e.tar.xz | |
pnfs: factor GETDEVICEINFO implementations
Add support to the common pNFS core to issue GETDEVICEINFO calls on
a device ID cache miss. The code is taken from the well debugged
file layout implementation and calls out to the layoutdriver through
a new alloc_deviceid_node method. The calling conventions for
nfs4_find_get_deviceid are changed so that all information needed to
send a GETDEVICEINFO request is passed to the common code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/filelayout/filelayout.h')
| -rw-r--r-- | fs/nfs/filelayout/filelayout.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/nfs/filelayout/filelayout.h b/fs/nfs/filelayout/filelayout.h index ffbddf2219ea..7c9f800c49d7 100644 --- a/fs/nfs/filelayout/filelayout.h +++ b/fs/nfs/filelayout/filelayout.h @@ -147,10 +147,11 @@ u32 nfs4_fl_calc_j_index(struct pnfs_layout_segment *lseg, loff_t offset); 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_alloc_deviceid_node(struct nfs_server *server, + struct pnfs_device *pdev, gfp_t gfp_flags); extern void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); extern void nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); -struct nfs4_file_layout_dsaddr * -filelayout_get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, - struct rpc_cred *cred, gfp_t gfp_flags); #endif /* FS_NFS_NFS4FILELAYOUT_H */ |