diff options
| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-11-30 16:23:38 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-12-01 17:21:50 -0500 |
| commit | 29ade5db12930ec60133f6a02791f4b1a4af2943 (patch) | |
| tree | 902a708ad74aa0a914489f696051bba762b297f1 /fs/nfs | |
| parent | abb3e1c8777ec2baffa2c736aa06280821018995 (diff) | |
pNFS: Wait on outstanding layoutreturns to complete in pnfs_roc()
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/pnfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 57ec46b57364..550010826bdd 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1245,11 +1245,20 @@ bool pnfs_roc(struct inode *ino, if (!nfs_have_layout(ino)) return false; +retry: spin_lock(&ino->i_lock); lo = nfsi->layout; if (!lo || !pnfs_layout_is_valid(lo) || test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) goto out_noroc; + if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) { + pnfs_get_layout_hdr(lo); + spin_unlock(&ino->i_lock); + wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, + TASK_UNINTERRUPTIBLE); + pnfs_put_layout_hdr(lo); + goto retry; + } /* no roc if we hold a delegation */ if (nfs4_check_delegation(ino, FMODE_READ)) |