1 files changed, 12 insertions, 19 deletions

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 9347ab7c9574..5209916e1222 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -202,7 +202,6 @@ out:
 /* A writeback failed: mark the page as bad, and invalidate the page cache */
 static void nfs_set_pageerror(struct page *page)
 {
-        SetPageError(page);
         nfs_zap_mapping(page_file_mapping(page)->host, page_file_mapping(page));
 }
 
@@ -239,21 +238,18 @@ int nfs_congestion_kb;
 #define NFS_CONGESTION_OFF_THRESH       \
         (NFS_CONGESTION_ON_THRESH - (NFS_CONGESTION_ON_THRESH >> 2))
 
-static int nfs_set_page_writeback(struct page *page)
+static void nfs_set_page_writeback(struct page *page)
 {
+        struct nfs_server *nfss = NFS_SERVER(page_file_mapping(page)->host);
         int ret = test_set_page_writeback(page);
 
-        if (!ret) {
-                struct inode *inode = page_file_mapping(page)->host;
-                struct nfs_server *nfss = NFS_SERVER(inode);
+        WARN_ON_ONCE(ret != 0);
 
-                if (atomic_long_inc_return(&nfss->writeback) >
-                                NFS_CONGESTION_ON_THRESH) {
-                        set_bdi_congested(&nfss->backing_dev_info,
-                                                BLK_RW_ASYNC);
-                }
+        if (atomic_long_inc_return(&nfss->writeback) >
+                        NFS_CONGESTION_ON_THRESH) {
+                set_bdi_congested(&nfss->backing_dev_info,
+                                        BLK_RW_ASYNC);
         }
-        return ret;
 }
 
 static void nfs_end_page_writeback(struct page *page)
@@ -315,10 +311,10 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
         if (IS_ERR(req))
                 goto out;
 
-        ret = nfs_set_page_writeback(page);
-        BUG_ON(ret != 0);
-        BUG_ON(test_bit(PG_CLEAN, &req->wb_flags));
+        nfs_set_page_writeback(page);
+        WARN_ON_ONCE(test_bit(PG_CLEAN, &req->wb_flags));
 
+        ret = 0;
         if (!nfs_pageio_add_request(pgio, req)) {
                 nfs_redirty_request(req);
                 ret = pgio->pg_error;
@@ -451,8 +447,6 @@ static void nfs_inode_remove_request(struct nfs_page *req)
         struct inode *inode = req->wb_context->dentry->d_inode;
         struct nfs_inode *nfsi = NFS_I(inode);
 
-        BUG_ON (!NFS_WBACK_BUSY(req));
-
         spin_lock(&inode->i_lock);
         if (likely(!PageSwapCache(req->wb_page))) {
                 set_page_private(req->wb_page, 0);
@@ -884,7 +878,7 @@ static bool nfs_write_pageuptodate(struct page *page, struct inode *inode)
 {
         if (nfs_have_delegated_attributes(inode))
                 goto out;
-        if (NFS_I(inode)->cache_validity & NFS_INO_REVAL_PAGECACHE)
+        if (NFS_I(inode)->cache_validity & (NFS_INO_INVALID_DATA|NFS_INO_REVAL_PAGECACHE))
                 return false;
 out:
         return PageUptodate(page) != 0;
@@ -1727,7 +1721,6 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page)
         struct nfs_page *req;
         int ret = 0;
 
-        BUG_ON(!PageLocked(page));
         for (;;) {
                 wait_on_page_writeback(page);
                 req = nfs_page_find_request(page);
@@ -1829,7 +1822,7 @@ int __init nfs_init_writepagecache(void)
                 goto out_destroy_write_mempool;
 
         nfs_commit_mempool = mempool_create_slab_pool(MIN_POOL_COMMIT,
-                                                      nfs_wdata_cachep);
+                                                      nfs_cdata_cachep);
         if (nfs_commit_mempool == NULL)
                 goto out_destroy_commit_cache;