Commit e51b841d authored by Benny Halevy's avatar Benny Halevy Committed by Boaz Harrosh
Browse files

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: default avatarBoaz Harrosh <bharrosh@panasas.com>
Signed-off-by: default avatarBenny Halevy <bhalevy@panasas.com>
parent 636fb9c8

fs/nfs/objlayout/objio_osd.c

+3 −0
Original line number Diff line number Diff line
@@ -364,6 +364,9 @@ static struct pnfs_layoutdriver_type objlayout_type = { 
	.id = LAYOUT_OSD2_OBJECTS,

	.name = "LAYOUT_OSD2_OBJECTS",



	.alloc_layout_hdr        = objlayout_alloc_layout_hdr,

	.free_layout_hdr         = objlayout_free_layout_hdr,



	.alloc_lseg              = objlayout_alloc_lseg,

	.free_lseg               = objlayout_free_lseg,

fs/nfs/objlayout/objlayout.c

+26 −0
Original line number Diff line number Diff line
@@ -41,6 +41,32 @@ 
#include "objlayout.h"



#define NFSDBG_FACILITY         NFSDBG_PNFS_LD

/*

 * Create a objlayout layout structure for the given inode and return it.

 */

struct pnfs_layout_hdr *

objlayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)

{

	struct objlayout *objlay;



	objlay = kzalloc(sizeof(struct objlayout), gfp_flags);

	dprintk("%s: Return %p\n", __func__, objlay);

	return &objlay->pnfs_layout;

}



/*

 * Free an objlayout layout structure

 */

void

objlayout_free_layout_hdr(struct pnfs_layout_hdr *lo)

{

	struct objlayout *objlay = OBJLAYOUT(lo);



	dprintk("%s: objlay %p\n", __func__, objlay);



	kfree(objlay);

}



/*

 * Unmarshall layout and store it in pnfslay.

 */

fs/nfs/objlayout/objlayout.h

+17 −0
Original line number Diff line number Diff line
@@ -45,6 +45,19 @@ 
#include <linux/pnfs_osd_xdr.h>

#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 *,