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| author | Andy Adamson <andros@netapp.com> | 2012-04-27 17:53:46 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-05-19 17:54:20 -0400 |
| commit | e7dd79af01e7ca932c5168a708e77750659f7a9e (patch) | |
| tree | dfacd16bce6df877ecae697cd7dbf5f8e0561872 /fs/nfs/nfs4filelayout.h | |
| parent | 98fc685ae2aa24eae98526e9196b3229d519083a (diff) | |
| download | linux-e7dd79af01e7ca932c5168a708e77750659f7a9e.tar.bz2 | |
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/nfs4filelayout.h')
| -rw-r--r-- | fs/nfs/nfs4filelayout.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index 6fb1901ffd6a..3259be60da92 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -48,6 +48,9 @@ #define NFS4_PNFS_MAX_STRIPE_CNT 4096 #define NFS4_PNFS_MAX_MULTI_CNT 256 /* 256 fit into a u8 stripe_index */ +/* error codes for internal use */ +#define NFS4ERR_RESET_TO_MDS 12001 + enum stripetype4 { STRIPE_SPARSE = 1, STRIPE_DENSE = 2 |