NTFS: Remove bogus setting of PageError in ntfs_read_compressed_block().

Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

fs/ntfs/ChangeLog

@@ -58,6 +58,7 @@ ToDo/Notes:
 	- Fix a bug in fs/ntfs/index.c::ntfs_index_lookup().  When the returned
 	  index entry is in the index root, we forgot to set the @ir pointer in
 	  the index context.  Thanks to Yura Pakhuchiy for finding this bug.
+	- Remove bogus setting of PageError in ntfs_read_compressed_block().
 
 2.1.23 - Implement extension of resident files and make writing safe as well as
 	 many bug fixes, cleanups, and enhancements...

fs/ntfs/compress.c

@@ -539,7 +539,6 @@ int ntfs_read_compressed_block(struct page *page)
 	if (unlikely(!pages || !bhs)) {
 		kfree(bhs);
 		kfree(pages);
-		SetPageError(page);
 		unlock_page(page);
 		ntfs_error(vol->sb, "Failed to allocate internal buffers.");
 		return -ENOMEM;
@@ -871,9 +870,6 @@ int ntfs_read_compressed_block(struct page *page)
 			for (; prev_cur_page < cur_page; prev_cur_page++) {
 				page = pages[prev_cur_page];
 				if (page) {
-					if (prev_cur_page == xpage &&
-							!xpage_done)
-						SetPageError(page);
 					flush_dcache_page(page);
 					kunmap(page);
 					unlock_page(page);
@@ -904,8 +900,6 @@ int ntfs_read_compressed_block(struct page *page)
 					"Terminating them with extreme "
 					"prejudice.  Inode 0x%lx, page index "
 					"0x%lx.", ni->mft_no, page->index);
-			if (cur_page == xpage && !xpage_done)
-				SetPageError(page);
 			flush_dcache_page(page);
 			kunmap(page);
 			unlock_page(page);
@@ -953,8 +947,6 @@ int ntfs_read_compressed_block(struct page *page)
 	for (i = cur_page; i < max_page; i++) {
 		page = pages[i];
 		if (page) {
-			if (i == xpage && !xpage_done)
-				SetPageError(page);
 			flush_dcache_page(page);
 			kunmap(page);
 			unlock_page(page);

fs/ntfs/file.c

 /*
- * file.c - NTFS kernel file operations. Part of the Linux-NTFS project.
+ * file.c - NTFS kernel file operations.  Part of the Linux-NTFS project.
  *
- * Copyright (c) 2001-2004 Anton Altaparmakov
+ * Copyright (c) 2001-2005 Anton Altaparmakov
  *
  * This program/include file is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as published
@@ -94,6 +94,11 @@ static int ntfs_file_fsync(struct file *filp, struct dentry *dentry,
 	if (!datasync || !NInoNonResident(NTFS_I(vi)))
 		ret = ntfs_write_inode(vi, 1);
 	write_inode_now(vi, !datasync);
+	/*
+	 * NOTE: If we were to use mapping->private_list (see ext2 and
+	 * fs/buffer.c) for dirty blocks then we could optimize the below to be
+	 * sync_mapping_buffers(vi->i_mapping).
+	 */
 	err = sync_blockdev(vi->i_sb->s_bdev);
 	if (unlikely(err && !ret))
 		ret = err;