patch-2.3.29 linux/fs/nfs/write.c

• Lines: 33
• Date: Sat Nov 20 10:09:05 1999
• Orig file: v2.3.28/linux/fs/nfs/write.c
• Orig date: Mon Nov 1 13:56:27 1999

diff -u --recursive --new-file v2.3.28/linux/fs/nfs/write.c linux/fs/nfs/write.c
@@ -99,7 +99,7 @@
 		dentry->d_parent->d_name.name, dentry->d_name.name,
 		count, page->index, offset);
 
-	buffer = (u8 *) page_address(page) + offset;
+	buffer = (u8 *) kmap(page) + offset;
 	offset += page->index << PAGE_CACHE_SHIFT;
 
 	do {
@@ -132,6 +132,7 @@
 	} while (count);
 
 io_error:
+	kunmap(page);
 	/* Note: we don't refresh if the call failed (fattr invalid) */
 	if (refresh && result >= 0) {
 		/* See comments in nfs_wback_result */
@@ -314,6 +315,7 @@
 	wreq->wb_bytes  = bytes;
 	wreq->wb_count	= 2;		/* One for the IO, one for us */
 
+	kmap(page);
 	append_write_request(&NFS_WRITEBACK(inode), wreq);
 
 	if (nr_write_requests++ > NFS_WRITEBACK_MAX*3/4)
@@ -687,6 +689,7 @@
 	if (WB_INVALIDATE(req))
 		ClearPageUptodate(page);
 
+	kunmap(page);
 	__free_page(page);
 	remove_write_request(&NFS_WRITEBACK(inode), req);
 	nr_write_requests--;