From: Johann Lombardi <[email protected]>
Fix a nit in ext4_ext_calc_credits_for_insert(). Besides, credits for the
new root are already added in the index split accounting.
Signed-off-by: Johann Lombardi <[email protected]>
Signed-off-by: Alex Tomas <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
fs/ext4/extents.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN fs/ext4/extents.c~ext4-fix-credit-calculation-in-ext4_ext_calc_credits_for_insert fs/ext4/extents.c
--- a/fs/ext4/extents.c~ext4-fix-credit-calculation-in-ext4_ext_calc_credits_for_insert
+++ a/fs/ext4/extents.c
@@ -1531,16 +1531,17 @@ int inline ext4_ext_calc_credits_for_ins
/*
* tree can be full, so it would need to grow in depth:
- * allocation + old root + new root
+ * we need one credit to modify old root, credits for
+ * new root will be added in split accounting
*/
- needed += 2 + 1 + 1;
+ needed += 1;
/*
* Index split can happen, we would need:
* allocate intermediate indexes (bitmap + group)
* + change two blocks at each level, but root (already included)
*/
- needed = (depth * 2) + (depth * 2);
+ needed += (depth * 2) + (depth * 2);
/* any allocation modifies superblock */
needed += 1;
_