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@@ -1384,7 +1384,22 @@ static void handle_task_deps(struct fxt_ev_64 *ev)
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unsigned long dep_succ = ev->param[1];
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struct task_info *task = get_task(dep_succ);
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- task->dependencies = realloc(task->dependencies, sizeof(*task->dependencies) * (task->ndeps+1));
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+ unsigned alloc = 0;
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+
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+ if (task->ndeps == 0)
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+ /* Start with 8=2^3, should be plenty in most cases */
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+ alloc = 8;
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+ else if (task->ndeps >= 8)
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+ {
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+ /* Allocate dependencies array by powers of two */
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+ if (! ((task->ndeps - 1) & task->ndeps)) /* Is task->ndeps a power of two? */
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+ {
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+ /* We have filled the previous power of two, get another one */
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+ alloc = task->ndeps * 2;
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+ }
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+ }
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+ if (alloc)
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+ task->dependencies = realloc(task->dependencies, sizeof(*task->dependencies) * alloc);
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task->dependencies[task->ndeps++] = dep_prev;
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/* There is a dependency between both job id : dep_prev -> dep_succ */
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