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Commit 33958dc6 authored by Chris Mason's avatar Chris Mason
Browse files

Btrfs: Fix verify_parent_transid 



It was incorrectly clearing the up to date flag on the buffer even
when the buffer properly verified.

Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent f321e491

fs/btrfs/disk-io.c

+1 −1
Original line number Diff line number Diff line
@@ -235,8 +235,8 @@ static int verify_parent_transid(struct extent_io_tree *io_tree, 
	       (unsigned long long)parent_transid,

	       (unsigned long long)btrfs_header_generation(eb));

	ret = 1;

out:

	clear_extent_buffer_uptodate(io_tree, eb);

out:

	unlock_extent(io_tree, eb->start, eb->start + eb->len - 1,

		      GFP_NOFS);

	return ret;

fs/btrfs/extent_io.c

+4 −1
Original line number Diff line number Diff line
@@ -2647,6 +2647,8 @@ static inline struct page *extent_buffer_page(struct extent_buffer *eb, 
		return eb->first_page;

	i += eb->start >> PAGE_CACHE_SHIFT;

	mapping = eb->first_page->mapping;

	if (!mapping)

		return NULL;

	read_lock_irq(&mapping->tree_lock);

	p = radix_tree_lookup(&mapping->page_tree, i);

	read_unlock_irq(&mapping->tree_lock);
@@ -2908,6 +2910,7 @@ int clear_extent_buffer_uptodate(struct extent_io_tree *tree, 
			      GFP_NOFS);

	for (i = 0; i < num_pages; i++) {

		page = extent_buffer_page(eb, i);

		if (page)

			ClearPageUptodate(page);

	}

	return 0;