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pnfs-obj: define per-inode private structure

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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>
This commit is contained in:
Benny Halevy 2011-05-22 19:51:48 +03:00 • committed by Boaz Harrosh
parent 636fb9c89d
commit e51b841dd0
3 changed files with 46 additions and 0 deletions
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26
fs/nfs/objlayout/objlayout.c
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@ -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.
*/