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

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
......@@ -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;
......
......@@ -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);
......@@ -2908,7 +2910,8 @@ 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);
ClearPageUptodate(page);
if (page)
ClearPageUptodate(page);
}
return 0;
}
......
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