From e51b841dd0be9ff53f740c44c32c32679edcb7c8 Mon Sep 17 00:00:00 2001 From: Benny Halevy Date: Sun, 22 May 2011 19:51:48 +0300 Subject: 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 Signed-off-by: Benny Halevy --- fs/nfs/objlayout/objlayout.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'fs/nfs/objlayout/objlayout.h') 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 @@ -45,6 +45,19 @@ #include #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 */ @@ -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 *, -- cgit v1.2.3-55-g7522