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authorAndy Adamson <andros@netapp.com>2012-04-27 17:53:46 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-05-19 17:54:20 -0400
commite7dd79af01e7ca932c5168a708e77750659f7a9e (patch)
treedfacd16bce6df877ecae697cd7dbf5f8e0561872 /fs/nfs/pnfs.h
parent98fc685ae2aa24eae98526e9196b3229d519083a (diff)
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op-kernel-dev-e7dd79af01e7ca932c5168a708e77750659f7a9e.tar.gz
NFSv4.1: mark deviceid invalid on filelayout DS connection errors
This prevents the use of any layout for i/o that references the deviceid. I/O is redirected through the MDS. Redirect the unhandled failed I/O to the MDS without marking either the layout or the deviceid invalid. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index f20054b..9cf9ede 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -222,6 +222,10 @@ struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino,
gfp_t gfp_flags);
void nfs4_deviceid_mark_client_invalid(struct nfs_client *clp);
+int pnfs_read_done_resend_to_mds(struct inode *inode, struct list_head *head,
+ const struct nfs_pgio_completion_ops *compl_ops);
+int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head,
+ const struct nfs_pgio_completion_ops *compl_ops);
/* nfs4_deviceid_flags */
enum {
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