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-rw-r--r--fs/btrfs/extent-tree.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2564cbfdf417..9183f9cbc121 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4022,6 +4022,18 @@ static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root,
}
}
+static inline int calc_reclaim_items_nr(struct btrfs_root *root, u64 to_reclaim)
+{
+ u64 bytes;
+ int nr;
+
+ bytes = btrfs_calc_trans_metadata_size(root, 1);
+ nr = (int)div64_u64(to_reclaim, bytes);
+ if (!nr)
+ nr = 1;
+ return nr;
+}
+
/*
* shrink metadata reservation for delalloc
*/
@@ -4167,16 +4179,11 @@ static int flush_space(struct btrfs_root *root,
switch (state) {
case FLUSH_DELAYED_ITEMS_NR:
case FLUSH_DELAYED_ITEMS:
- if (state == FLUSH_DELAYED_ITEMS_NR) {
- u64 bytes = btrfs_calc_trans_metadata_size(root, 1);
-
- nr = (int)div64_u64(num_bytes, bytes);
- if (!nr)
- nr = 1;
- nr *= 2;
- } else {
+ if (state == FLUSH_DELAYED_ITEMS_NR)
+ nr = calc_reclaim_items_nr(root, num_bytes) * 2;
+ else
nr = -1;
- }
+
trans = btrfs_join_transaction(root);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
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