1 files changed, 9 insertions, 8 deletions

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 5d44b8bd1070..af344a158e01 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -21,7 +21,6 @@
 #include <linux/backing-dev.h>
 
 #include <asm/uaccess.h>
-#include <linux/smp_lock.h>
 
 #include "delegation.h"
 #include "internal.h"
@@ -59,7 +58,7 @@ struct nfs_write_data *nfs_commit_alloc(void)
 	return p;
 }
 
-void nfs_commit_rcu_free(struct rcu_head *head)
+static void nfs_commit_rcu_free(struct rcu_head *head)
 {
 	struct nfs_write_data *p = container_of(head, struct nfs_write_data, task.u.tk_rcu);
 	if (p && (p->pagevec != &p->page_array[0]))
@@ -169,7 +168,7 @@ static void nfs_mark_uptodate(struct page *page, unsigned int base, unsigned int
 	if (count != nfs_page_length(page))
 		return;
 	if (count != PAGE_CACHE_SIZE)
-		memclear_highpage_flush(page, count, PAGE_CACHE_SIZE - count);
+		zero_user_page(page, count, PAGE_CACHE_SIZE - count, KM_USER0);
 	SetPageUptodate(page);
 }
 
@@ -225,7 +224,7 @@ static int nfs_set_page_writeback(struct page *page)
 		struct inode *inode = page->mapping->host;
 		struct nfs_server *nfss = NFS_SERVER(inode);
 
-		if (atomic_inc_return(&nfss->writeback) >
+		if (atomic_long_inc_return(&nfss->writeback) >
 				NFS_CONGESTION_ON_THRESH)
 			set_bdi_congested(&nfss->backing_dev_info, WRITE);
 	}
@@ -238,7 +237,7 @@ static void nfs_end_page_writeback(struct page *page)
 	struct nfs_server *nfss = NFS_SERVER(inode);
 
 	end_page_writeback(page);
-	if (atomic_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) {
+	if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) {
 		clear_bdi_congested(&nfss->backing_dev_info, WRITE);
 		congestion_end(WRITE);
 	}
@@ -274,8 +273,6 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
 		 *	 request as dirty (in which case we don't care).
 		 */
 		spin_unlock(req_lock);
-		/* Prevent deadlock! */
-		nfs_pageio_complete(pgio);
 		ret = nfs_wait_on_request(req);
 		nfs_release_request(req);
 		if (ret != 0)
@@ -322,6 +319,8 @@ static int nfs_writepage_locked(struct page *page, struct writeback_control *wbc
 		pgio = &mypgio;
 	}
 
+	nfs_pageio_cond_complete(pgio, page->index);
+
 	err = nfs_page_async_flush(pgio, page);
 	if (err <= 0)
 		goto out;
@@ -330,6 +329,8 @@ static int nfs_writepage_locked(struct page *page, struct writeback_control *wbc
 	if (!offset)
 		goto out;
 
+	nfs_pageio_cond_complete(pgio, page->index);
+
 	ctx = nfs_find_open_context(inode, NULL, FMODE_WRITE);
 	if (ctx == NULL) {
 		err = -EBADF;
@@ -923,7 +924,7 @@ static int nfs_flush_one(struct inode *inode, struct list_head *head, unsigned i
 	return 0;
  out_bad:
 	while (!list_empty(head)) {
-		struct nfs_page *req = nfs_list_entry(head->next);
+		req = nfs_list_entry(head->next);
 		nfs_list_remove_request(req);
 		nfs_redirty_request(req);
 		nfs_end_page_writeback(req->wb_page);