NFS: remove nfs_inode radix tree

The radix tree is only being used to compile lists of reqs needing commit.
It is simpler to just put the reqs directly into a list.

Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 2 insertions, 17 deletions

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index ce8e4361ad14..0a63ab2b5a76 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -171,13 +171,9 @@ struct nfs_inode {
          */
         __be32                  cookieverf[2];
 
-        /*
-         * This is the list of dirty unwritten pages.
-         */
-        struct radix_tree_root  nfs_page_tree;
-
         unsigned long           npages;
         unsigned long           ncommit;
+        struct list_head        commit_list;
 
         /* Open contexts for shared mmap writes */
         struct list_head        open_files;
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 65b563f0903a..50856e9c1e5f 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -19,11 +19,6 @@
 #include <linux/kref.h>
 
 /*
- * Valid flags for the radix tree
- */
-#define NFS_PAGE_TAG_COMMIT     1
-
-/*
  * Valid flags for a dirty buffer
  */
 enum {
@@ -32,16 +27,12 @@ enum {
         PG_CLEAN,
         PG_NEED_COMMIT,
         PG_NEED_RESCHED,
-        PG_PNFS_COMMIT,
         PG_PARTIAL_READ_FAILED,
 };
 
 struct nfs_inode;
 struct nfs_page {
-        union {
-                struct list_head        wb_list;        /* Defines state of page: */
-                struct pnfs_layout_segment *wb_commit_lseg; /* Used when PG_PNFS_COMMIT set */
-        };
+        struct list_head        wb_list;        /* Defines state of page: */
         struct page             *wb_page;       /* page to read in/write out */
         struct nfs_open_context *wb_context;    /* File state context info */
         struct nfs_lock_context *wb_lock_context;       /* lock context info */
@@ -89,8 +80,6 @@ extern	struct nfs_page *nfs_create_request(struct nfs_open_context *ctx,
 extern  void nfs_release_request(struct nfs_page *req);
 
 
-extern  int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *dst,
-                          pgoff_t idx_start, unsigned int npages, int tag);
 extern  void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
                              struct inode *inode,
                              const struct nfs_pageio_ops *pg_ops,