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| author | Benny Halevy | 2011-05-22 18:51:48 +0200 |
|---|---|---|
| committer | Boaz Harrosh | 2011-05-29 19:53:51 +0200 |
| commit | e51b841dd0be9ff53f740c44c32c32679edcb7c8 (patch) | |
| tree | 03e46d6013fa2a45ad22b3f510267d11e5f8d25a /fs/nfs/objlayout/objlayout.h | |
| parent | pnfs: alloc and free layout_hdr layoutdriver methods (diff) | |
| download | kernel-qcow2-linux-e51b841dd0be9ff53f740c44c32c32679edcb7c8.tar.gz kernel-qcow2-linux-e51b841dd0be9ff53f740c44c32c32679edcb7c8.tar.xz kernel-qcow2-linux-e51b841dd0be9ff53f740c44c32c32679edcb7c8.zip | |
pnfs-obj: define per-inode private structure
allocate and deallocate per-inode private pnfs_layout_hdr
in preparation for I/O implementation.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Diffstat (limited to 'fs/nfs/objlayout/objlayout.h')
| -rw-r--r-- | fs/nfs/objlayout/objlayout.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/nfs/objlayout/objlayout.h b/fs/nfs/objlayout/objlayout.h index 0814271bb9ba..fa0262149f59 100644 --- a/fs/nfs/objlayout/objlayout.h +++ b/fs/nfs/objlayout/objlayout.h @@ -46,6 +46,19 @@ #include "../pnfs.h" /* + * per-inode layout + */ +struct objlayout { + struct pnfs_layout_hdr pnfs_layout; +}; + +static inline struct objlayout * +OBJLAYOUT(struct pnfs_layout_hdr *lo) +{ + return container_of(lo, struct objlayout, pnfs_layout); +} + +/* * Raid engine I/O API */ extern int objio_alloc_lseg(struct pnfs_layout_segment **outp, @@ -66,6 +79,10 @@ extern void objlayout_put_deviceinfo(struct pnfs_osd_deviceaddr *deviceaddr); /* * exported generic objects function vectors */ + +extern struct pnfs_layout_hdr *objlayout_alloc_layout_hdr(struct inode *, gfp_t gfp_flags); +extern void objlayout_free_layout_hdr(struct pnfs_layout_hdr *); + extern struct pnfs_layout_segment *objlayout_alloc_lseg( struct pnfs_layout_hdr *, struct nfs4_layoutget_res *, |