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-rw-r--r--fs/logfs/readwrite.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 3659c37..7e0c39c 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -1219,6 +1219,18 @@ static void free_shadow(struct inode *inode, struct logfs_shadow *shadow)
mempool_free(shadow, super->s_shadow_pool);
}
+static void mark_segment(struct shadow_tree *tree, u32 segno)
+{
+ int err;
+
+ if (!btree_lookup32(&tree->segment_map, segno)) {
+ err = btree_insert32(&tree->segment_map, segno, (void *)1,
+ GFP_NOFS);
+ BUG_ON(err);
+ tree->no_shadowed_segments++;
+ }
+}
+
/**
* fill_shadow_tree - Propagate shadow tree changes due to a write
* @inode: Inode owning the page
@@ -1266,6 +1278,8 @@ static void fill_shadow_tree(struct inode *inode, struct page *page,
super->s_dirty_used_bytes += shadow->new_len;
super->s_dirty_free_bytes += shadow->old_len;
+ mark_segment(tree, shadow->old_ofs >> super->s_segshift);
+ mark_segment(tree, shadow->new_ofs >> super->s_segshift);
}
}