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-rw-r--r--fs/ext3/balloc.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index b41a7d7e20f..f96c40a90e2 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -1307,10 +1307,14 @@ ext3_try_to_allocate_with_rsv(struct super_block *sb, handle_t *handle,
if (!goal_in_my_reservation(&my_rsv->rsv_window,
grp_goal, group, sb))
grp_goal = -1;
- } else if (grp_goal > 0 &&
- (my_rsv->rsv_end-grp_goal+1) < *count)
- try_to_extend_reservation(my_rsv, sb,
- *count-my_rsv->rsv_end + grp_goal - 1);
+ } else if (grp_goal > 0) {
+ int curr = my_rsv->rsv_end -
+ (grp_goal + group_first_block) + 1;
+
+ if (curr < *count)
+ try_to_extend_reservation(my_rsv, sb,
+ *count - curr);
+ }
if ((my_rsv->rsv_start > group_last_block) ||
(my_rsv->rsv_end < group_first_block)) {