Hello,
A few codes were not properly updated for changes of extent map. This
may be the causes of "no csum found for inode" issue.
Regards
YZ
---
diff -r c048e905f04f extent_io.c
--- a/extent_io.c Wed Feb 06 11:37:39 2008 -0500
+++ b/extent_io.c Fri Feb 15 05:30:28 2008 +0800
@@ -2420,9 +2420,11 @@ int try_release_extent_mapping(struct ex
if ((mask & __GFP_WAIT) &&
page->mapping->host->i_size > 16 * 1024 * 1024) {
+ u64 len;
while (start <= end) {
+ len = end - start + 1;
spin_lock(&map->lock);
- em = lookup_extent_mapping(map, start, end);
+ em = lookup_extent_mapping(map, start, len);
if (!em || IS_ERR(em)) {
spin_unlock(&map->lock);
break;
diff -r c048e905f04f file.c
--- a/file.c Wed Feb 06 11:37:39 2008 -0500
+++ b/file.c Fri Feb 15 05:30:28 2008 +0800
@@ -356,10 +356,14 @@ int btrfs_drop_extent_cache(struct inode
{
struct extent_map *em;
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
+ u64 len = end - start + 1;
+
+ if (end == (u64)-1)
+ len = (u64)-1;
while(1) {
spin_lock(&em_tree->lock);
- em = lookup_extent_mapping(em_tree, start, end);
+ em = lookup_extent_mapping(em_tree, start, len);
if (!em) {
spin_unlock(&em_tree->lock);
break;