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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2017-11-06 15:28:07 -0500 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-11-17 16:43:47 -0500 |
| commit | 7380020e77b61361207420e78a9da925bc79ab4b (patch) | |
| tree | 77d774e332879e81983b0afd1204a93061daea15 /fs/nfs/pnfs.c | |
| parent | c82bac6f4b2af18dcb392b10e80c809ee17b2b1b (diff) | |
| download | linux-7380020e77b61361207420e78a9da925bc79ab4b.tar.bz2 | |
pNFS: Retry NFS4ERR_OLD_STATEID errors in layoutreturn-on-close
If our layoutreturn on close operation returns an NFS4ERR_OLD_STATEID,
then try to update the stateid and retry. We know that there should
be no further LAYOUTGET requests being launched.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.c')
| -rw-r--r-- | fs/nfs/pnfs.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index ec30dacf1a24..d602fe9e1ac8 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -355,6 +355,24 @@ pnfs_clear_lseg_state(struct pnfs_layout_segment *lseg, } /* + * Update the seqid of a layout stateid + */ +bool nfs4_refresh_layout_stateid(nfs4_stateid *dst, struct inode *inode) +{ + struct pnfs_layout_hdr *lo; + bool ret = false; + + spin_lock(&inode->i_lock); + lo = NFS_I(inode)->layout; + if (lo && nfs4_stateid_match_other(dst, &lo->plh_stateid)) { + dst->seqid = lo->plh_stateid.seqid; + ret = true; + } + spin_unlock(&inode->i_lock); + return ret; +} + +/* * Mark a pnfs_layout_hdr and all associated layout segments as invalid * * In order to continue using the pnfs_layout_hdr, a full recovery |