Return-Path: Received: from mail-io0-f195.google.com ([209.85.223.195]:36527 "EHLO mail-io0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751928AbcGVTef (ORCPT ); Fri, 22 Jul 2016 15:34:35 -0400 Received: by mail-io0-f195.google.com with SMTP id y34so8006153ioi.3 for ; Fri, 22 Jul 2016 12:34:34 -0700 (PDT) From: Trond Myklebust To: linux-nfs@vger.kernel.org Subject: [PATCH 1/6] pNFS: Clear the layout return tracking on layout reinitialisation Date: Fri, 22 Jul 2016 15:33:53 -0400 Message-Id: <1469216038-71882-2-git-send-email-trond.myklebust@primarydata.com> In-Reply-To: <1469216038-71882-1-git-send-email-trond.myklebust@primarydata.com> References: <1469216038-71882-1-git-send-email-trond.myklebust@primarydata.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: Ensure that we don't carry over layoutreturn info from a previous incarnation of this layout. Signed-off-by: Trond Myklebust --- fs/nfs/pnfs.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 0c7e0d45a4de..27052d4b46ef 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -871,15 +871,21 @@ 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; } @@ -1760,7 +1766,10 @@ 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); + if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags)) { + pnfs_clear_layoutreturn_info(lo); + clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); + } pnfs_get_lseg(lseg); pnfs_layout_insert_lseg(lo, lseg, &free_me); -- 2.7.4