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pnfs: add pnfs_report_layoutstat helper function

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Reviewed-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Peng Tao
2015-06-23 19:51:57 +08:00
committed by Trond Myklebust
parent 1b4a4bd82c
commit 8733408d6e
3 changed files with 56 additions and 0 deletions
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fs/nfs/pnfs.h
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@@ -178,6 +178,8 @@ struct pnfs_layoutdriver_type {
void (*encode_layoutcommit) (struct pnfs_layout_hdr *lo,
struct xdr_stream *xdr,
const struct nfs4_layoutcommit_args *args);
int (*prepare_layoutstats) (struct nfs42_layoutstat_args *args);
void (*cleanup_layoutstats) (struct nfs42_layoutstat_data *data);
};
struct pnfs_layout_hdr {
@@ -290,6 +292,7 @@ int pnfs_write_done_resend_to_mds(struct nfs_pgio_header *);
struct nfs4_threshold *pnfs_mdsthreshold_alloc(void);
void pnfs_error_mark_layout_for_return(struct inode *inode,
struct pnfs_layout_segment *lseg);
int pnfs_report_layoutstat(struct inode *inode);
/* nfs4_deviceid_flags */
enum {