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| author | Tom Haynes <loghyr@primarydata.com> | 2016-05-17 12:28:37 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-05-17 15:48:08 -0400 |
| commit | 3b13b4b311a508a5899070936a873e30fcc96a2f (patch) | |
| tree | ea4533aa1ad416f21b63654bd7f707dcde18c171 /fs/nfs/flexfilelayout/flexfilelayoutdev.c | |
| parent | 75bf47ebf6b5349d875fdffe7d64b0fc4e936170 (diff) | |
| download | linux-3b13b4b311a508a5899070936a873e30fcc96a2f.tar.bz2 | |
pNFS/flexfiles: When checking for available DSes, conditionally check for MDS io
Whenever we check to see if we have the needed number of DSes for the
action, we may also have to check to see whether IO is allowed to go to
the MDS or not.
[jlayton: fix merge conflict due to lack of localio patches here]
Signed-off-by: Tom Haynes <loghyr@primarydata.com>
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/flexfilelayout/flexfilelayoutdev.c')
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayoutdev.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c index eeef89359ad2..8242ab327fee 100644 --- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c +++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c @@ -541,6 +541,12 @@ bool ff_layout_has_available_ds(struct pnfs_layout_segment *lseg) return ff_rw_layout_has_available_ds(lseg); } +bool ff_layout_avoid_mds_available_ds(struct pnfs_layout_segment *lseg) +{ + return ff_layout_no_fallback_to_mds(lseg) || + ff_layout_has_available_ds(lseg); +} + module_param(dataserver_retrans, uint, 0644); MODULE_PARM_DESC(dataserver_retrans, "The number of times the NFSv4.1 client " "retries a request before it attempts further " |