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pnfs: add a nfs4_get_deviceid helper

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This will be used by the block layout driver when splitting extents.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Christoph Hellwig 2014-09-02 21:27:59 -07:00 committed by Trond Myklebust
parent 9dd2fcd32f
commit 30ff0603ca
1 changed files with 7 additions and 0 deletions
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7
fs/nfs/pnfs.h
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@ -280,6 +280,13 @@ void nfs4_deviceid_purge_client(const struct nfs_client *);
int nfs4_deviceid_getdevicelist(struct nfs_server *server,
const struct nfs_fh *fh);
static inline struct nfs4_deviceid_node *
nfs4_get_deviceid(struct nfs4_deviceid_node *d)
{
atomic_inc(&d->ref);
return d;
}
static inline struct pnfs_layout_segment *
pnfs_get_lseg(struct pnfs_layout_segment *lseg)
{