Merge tag 'nfs-for-3.18-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Highlights include:

  Stable fixes:
   - fix an NFSv4.1 state renewal regression
   - fix open/lock state recovery error handling
   - fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails
   - fix statd when reconnection fails
   - don't wake tasks during connection abort
   - don't start reboot recovery if lease check fails
   - fix duplicate proc entries

  Features:
  - pNFS block driver fixes and clean ups from Christoph
  - More code cleanups from Anna
  - Improve mmap() writeback performance
  - Replace use of PF_TRANS with a more generic mechanism for avoiding
    deadlocks in nfs_release_page"

* tag 'nfs-for-3.18-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (66 commits)
  NFSv4.1: Fix an NFSv4.1 state renewal regression
  NFSv4: fix open/lock state recovery error handling
  NFSv4: Fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails
  NFS: Fabricate fscache server index key correctly
  SUNRPC: Add missing support for RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT
  NFSv3: Fix missing includes of nfs3_fs.h
  NFS/SUNRPC: Remove other deadlock-avoidance mechanisms in nfs_release_page()
  NFS: avoid waiting at all in nfs_release_page when congested.
  NFS: avoid deadlocks with loop-back mounted NFS filesystems.
  MM: export page_wakeup functions
  SCHED: add some "wait..on_bit...timeout()" interfaces.
  NFS: don't use STABLE writes during writeback.
  NFSv4: use exponential retry on NFS4ERR_DELAY for async requests.
  rpc: Add -EPERM processing for xs_udp_send_request()
  rpc: return sent and err from xs_sendpages()
  lockd: Try to reconnect if statd has moved
  SUNRPC: Don't wake tasks during connection abort
  Fixing lease renewal
  nfs: fix duplicate proc entries
  pnfs/blocklayout: Fix a 64-bit division/remainder issue in bl_map_stripe
  ...

1 files changed, 23 insertions, 11 deletions

diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 90978075f730..abc5056999d6 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -265,7 +265,7 @@ filelayout_set_layoutcommit(struct nfs_pgio_header *hdr)
 {
 
 	if (FILELAYOUT_LSEG(hdr->lseg)->commit_through_mds ||
-	    hdr->res.verf->committed == NFS_FILE_SYNC)
+	    hdr->res.verf->committed != NFS_DATA_SYNC)
 		return;
 
 	pnfs_set_layoutcommit(hdr);
@@ -403,6 +403,9 @@ static int filelayout_commit_done_cb(struct rpc_task *task,
 		return -EAGAIN;
 	}
 
+	if (data->verf.committed == NFS_UNSTABLE)
+		pnfs_commit_set_layoutcommit(data);
+
 	return 0;
 }
 
@@ -646,18 +649,15 @@ filelayout_check_layout(struct pnfs_layout_hdr *lo,
 	}
 
 	/* find and reference the deviceid */
-	d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode)->pnfs_curr_ld,
-				   NFS_SERVER(lo->plh_inode)->nfs_client, id);
-	if (d == NULL) {
-		dsaddr = filelayout_get_device_info(lo->plh_inode, id,
-				lo->plh_lc_cred, gfp_flags);
-		if (dsaddr == NULL)
-			goto out;
-	} else
-		dsaddr = container_of(d, struct nfs4_file_layout_dsaddr, id_node);
+	d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode), id,
+			lo->plh_lc_cred, gfp_flags);
+	if (d == NULL)
+		goto out;
+
+	dsaddr = container_of(d, struct nfs4_file_layout_dsaddr, id_node);
 	/* Found deviceid is unavailable */
 	if (filelayout_test_devid_unavailable(&dsaddr->id_node))
-			goto out_put;
+		goto out_put;
 
 	fl->dsaddr = dsaddr;
 
@@ -1368,6 +1368,17 @@ out:
 	cinfo->ds->ncommitting = 0;
 	return PNFS_ATTEMPTED;
 }
+static struct nfs4_deviceid_node *
+filelayout_alloc_deviceid_node(struct nfs_server *server,
+		struct pnfs_device *pdev, gfp_t gfp_flags)
+{
+	struct nfs4_file_layout_dsaddr *dsaddr;
+
+	dsaddr = nfs4_fl_alloc_deviceid_node(server, pdev, gfp_flags);
+	if (!dsaddr)
+		return NULL;
+	return &dsaddr->id_node;
+}
 
 static void
 filelayout_free_deveiceid_node(struct nfs4_deviceid_node *d)
@@ -1420,6 +1431,7 @@ static struct pnfs_layoutdriver_type filelayout_type = {
 	.commit_pagelist	= filelayout_commit_pagelist,
 	.read_pagelist		= filelayout_read_pagelist,
 	.write_pagelist		= filelayout_write_pagelist,
+	.alloc_deviceid_node	= filelayout_alloc_deviceid_node,
 	.free_deviceid_node	= filelayout_free_deveiceid_node,
 };