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| author |   Peng Tao <tao.peng@primarydata.com> | 2015-06-23 19:52:04 +0800 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@primarydata.com> | 2015-06-24 10:54:23 -0400 |
| commit | 97ba375b5df43790aa82c256f7f16ee8eb95c272 (patch) | |
| tree | a80da1b7f734307f02766c3dee4b5fa0d0654b29 /fs/nfs/flexfilelayout/flexfilelayout.h | |
| parent | nfs42: serialize LAYOUTSTATS calls of the same file (diff) | |
| download | linux-dev-97ba375b5df43790aa82c256f7f16ee8eb95c272.tar.xz linux-dev-97ba375b5df43790aa82c256f7f16ee8eb95c272.zip | |
pnfs/flexfiles: report layoutstat regularly
As a simple scheme, report every minute if IO is still going on.
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>
Diffstat (limited to '')
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h index 7e248874f46d..6fcd8d5e8e3d 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.h +++ b/fs/nfs/flexfilelayout/flexfilelayout.h @@ -15,6 +15,9 @@ * due to network error etc. */ #define NFS4_FLEXFILE_LAYOUT_MAX_MIRROR_CNT 4096 +/* LAYOUTSTATS report interval in ms */ +#define FF_LAYOUTSTATS_REPORT_INTERVAL (60000L) + struct nfs4_ff_ds_version { u32 version; u32 minor_version; @@ -62,6 +65,7 @@ struct nfs4_ff_layoutstat { }; struct nfs4_ff_layout_mirror { + struct pnfs_layout_segment *lseg; /* back pointer */ u32 ds_count; u32 efficiency; struct nfs4_ff_layout_ds *mirror_ds; @@ -75,7 +79,7 @@ struct nfs4_ff_layout_mirror { struct nfs4_ff_layoutstat read_stat; struct nfs4_ff_layoutstat write_stat; ktime_t start_time; - struct pnfs_layout_segment *lseg; /* back pointer */ + ktime_t last_report_time; }; struct nfs4_ff_layout_segment { |