Merge branch 'nfs-for-3.1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

* 'nfs-for-3.1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (28 commits)
  pnfsblock: write_pagelist handle zero invalid extents
  pnfsblock: note written INVAL areas for layoutcommit
  pnfsblock: bl_write_pagelist
  pnfsblock: bl_read_pagelist
  pnfsblock: cleanup_layoutcommit
  pnfsblock: encode_layoutcommit
  pnfsblock: merge rw extents
  pnfsblock: add extent manipulation functions
  pnfsblock: bl_find_get_extent
  pnfsblock: xdr decode pnfs_block_layout4
  pnfsblock: call and parse getdevicelist
  pnfsblock: merge extents
  pnfsblock: lseg alloc and free
  pnfsblock: remove device operations
  pnfsblock: add device operations
  pnfsblock: basic extent code
  pnfsblock: use pageio_ops api
  pnfsblock: add blocklayout Kconfig option, Makefile, and stubs
  pnfs: cleanup_layoutcommit
  pnfs: ask for layout_blksize and save it in nfs_server
  ...

5 files changed, 23 insertions, 4 deletions

diff --git a/include/linux/nfs.h b/include/linux/nfs.h
index f387919bbc59..8c6ee44914cb 100644
--- a/include/linux/nfs.h
+++ b/include/linux/nfs.h
@@ -29,6 +29,8 @@
 #define NFS_MNT_VERSION         1
 #define NFS_MNT3_VERSION        3
 
+#define NFS_PIPE_DIRNAME "/nfs"
+
 /*
  * NFS stats. The good thing with these values is that NFSv3 errors are
  * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index a3c4bc800dce..76f99e8714f3 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -566,6 +566,7 @@ enum {
         NFSPROC4_CLNT_SECINFO_NO_NAME,
         NFSPROC4_CLNT_TEST_STATEID,
         NFSPROC4_CLNT_FREE_STATEID,
+        NFSPROC4_CLNT_GETDEVICELIST,
 };
 
 /* nfs41 types */
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 8b579beb6358..b96fb99072ff 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -99,9 +99,10 @@ struct nfs_open_context {
 
 struct nfs_open_dir_context {
         struct rpc_cred *cred;
+        unsigned long attr_gencount;
         __u64 dir_cookie;
         __u64 dup_cookie;
-        int duped;
+        signed char duped;
 };
 
 /*
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 50a661f8b45a..82fdfc7987d6 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -132,7 +132,7 @@ struct nfs_server {
 #endif
 
 #ifdef CONFIG_NFS_V4
-        u32                     attr_bitmask[2];/* V4 bitmask representing the set
+        u32                     attr_bitmask[3];/* V4 bitmask representing the set
                                                    of attributes supported on this
                                                    filesystem */
         u32                     cache_consistency_bitmask[2];
@@ -145,6 +145,8 @@ struct nfs_server {
                                                    filesystem */
         struct pnfs_layoutdriver_type  *pnfs_curr_ld; /* Active layout driver */
         struct rpc_wait_queue   roc_rpcwaitq;
+        u32                     pnfs_blksize;   /* layout_blksize attr */
+        void                    *pnfs_ld_data;  /* per mount point data */
 
         /* the following fields are protected by nfs_client->cl_lock */
         struct rb_root          state_owners;
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 5b115956abac..569ea5b76fda 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -122,6 +122,7 @@ struct nfs_fsinfo {
         struct timespec         time_delta; /* server time granularity */
         __u32                   lease_time; /* in seconds */
         __u32                   layouttype; /* supported pnfs layout driver */
+        __u32                   blksize; /* preferred pnfs io block size */
 };
 
 struct nfs_fsstat {
@@ -235,6 +236,17 @@ struct nfs4_layoutget {
         gfp_t gfp_flags;
 };
 
+struct nfs4_getdevicelist_args {
+        const struct nfs_fh *fh;
+        u32 layoutclass;
+        struct nfs4_sequence_args seq_args;
+};
+
+struct nfs4_getdevicelist_res {
+        struct pnfs_devicelist *devlist;
+        struct nfs4_sequence_res seq_res;
+};
+
 struct nfs4_getdeviceinfo_args {
         struct pnfs_device *pdev;
         struct nfs4_sequence_args seq_args;
@@ -257,12 +269,13 @@ struct nfs4_layoutcommit_res {
         struct nfs_fattr *fattr;
         const struct nfs_server *server;
         struct nfs4_sequence_res seq_res;
+        int status;
 };
 
 struct nfs4_layoutcommit_data {
         struct rpc_task task;
         struct nfs_fattr fattr;
-        struct pnfs_layout_segment *lseg;
+        struct list_head lseg_list;
         struct rpc_cred *cred;
         struct nfs4_layoutcommit_args args;
         struct nfs4_layoutcommit_res res;
@@ -943,7 +956,7 @@ struct nfs4_server_caps_arg {
 };
 
 struct nfs4_server_caps_res {
-        u32                             attr_bitmask[2];
+        u32                             attr_bitmask[3];
         u32                             acl_bitmask;
         u32                             has_links;
         u32                             has_symlinks;