This is based on Josef's "Btrfs: turbo charge fsync".
We should cleanup those extents after we've finished logging inode,
otherwise we may do redundant work on them.
Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx>
---
fs/btrfs/tree-log.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 5190cd6..e7365d7 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3167,6 +3167,12 @@ next_slot:
err = ret;
goto out_unlock;
}
+ } else {
+ struct extent_map_tree *tree = &BTRFS_I(inode)->extent_tree;
+ struct extent_map *em, *n;
+
+ list_for_each_entry_safe(em, n, &tree->modified_extents, list)
+ list_del_init(&em->list);
}
if (inode_only == LOG_INODE_ALL && S_ISDIR(inode->i_mode)) {
--
1.7.7.6
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