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pNFS: Clear the layout return tracking on layout reinitialisation 

Ensure that we don't carry over layoutreturn info from a previous
incarnation of this layout.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2016-07-21 11:53:29 -04:00
parent 45fcc7bca7
commit 8e0acf9046
1 changed files with 14 additions and 5 deletions
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19
fs/nfs/pnfs.c
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@ -873,15 +873,21 @@ void pnfs_clear_layoutreturn_waitbit(struct pnfs_layout_hdr *lo)
rpc_wake_up(&NFS_SERVER(lo->plh_inode)->roc_rpcwaitq);
}
static void
pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo)
{
lo->plh_return_iomode = 0;
lo->plh_return_seq = 0;
clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
}
static bool
pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo)
{
if (test_and_set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
return false;
lo->plh_return_iomode = 0;
lo->plh_return_seq = 0;
pnfs_get_layout_hdr(lo);
clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
pnfs_clear_layoutreturn_info(lo);
return true;
}
@ -1764,10 +1770,13 @@ pnfs_layout_process(struct nfs4_layoutget *lgp)
lo->plh_barrier = be32_to_cpu(res->stateid.seqid);
}
clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
pnfs_get_lseg(lseg);
pnfs_layout_insert_lseg(lo, lseg, &free_me);
if (!pnfs_layout_is_valid(lo)) {
pnfs_clear_layoutreturn_info(lo);
clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
}
if (res->return_on_close)
set_bit(NFS_LSEG_ROC, &lseg->pls_flags);