>
> Now it hit
Man I cannot catch a break. I hope this is the last one. Thanks,
Josef
---
fs/btrfs/free-space-cache.c | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 74bc432..b8052be 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -522,6 +522,7 @@ int btrfs_write_out_cache(struct btrfs_root *root,
int bitmaps = 0;
int ret = 0;
bool next_page = false;
+ bool out_of_space = false;
root = root->fs_info->tree_root;
@@ -629,6 +630,11 @@ int btrfs_write_out_cache(struct btrfs_root *root,
offset = start_offset;
}
+ if (index > last_index) {
+ out_of_space = true;
+ break;
+ }
+
page = find_get_page(inode->i_mapping, index);
addr = kmap(page);
@@ -732,6 +738,10 @@ int btrfs_write_out_cache(struct btrfs_root *root,
struct btrfs_free_space *entry =
list_entry(pos, struct btrfs_free_space, list);
+ if (index > last_index) {
+ out_of_space = true;
+ break;
+ }
page = find_get_page(inode->i_mapping, index);
addr = kmap(page);
@@ -754,6 +764,28 @@ int btrfs_write_out_cache(struct btrfs_root *root,
index++;
}
+ if (out_of_space) {
+ page = find_get_page(inode->i_mapping, 0);
+
+ /*
+ * Have to do the normal stuff in case writeback gets started on
+ * this page before we invalidate it.
+ */
+ ClearPageChecked(page);
+ set_page_extent_mapped(page);
+ SetPageUptodate(page);
+ set_page_dirty(page);
+ unlock_page(page);
+ page_cache_release(page);
+ page_cache_release(page);
+
+ ret = 0;
+ unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0,
+ i_size_read(inode) - 1, &cached_state,
+ GFP_NOFS);
+ goto out_free;
+ }
+
/* Zero out the rest of the pages just to make sure */
while (index <= last_index) {
void *addr;
--
1.7.2.3
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