mm/mm_heap: move user buffer cleanup outside mm_lock()

[anchao]

Summary

mm/mm_heap: move user buffer cleanup outside mm_lock()

1. Move user buffer cleanup outside of mm_lock() to improve performance
2. Fix free magic and posion mask is not set if hold mm_lock() failure

Signed-off-by: chao an [email protected]

Impact

N/A

Testing

ci-check

[anchao]

Doen't this make finding the culprit of the double free (the caller) harder to find?

Yes, This PR needs optimize further, we must guarantee the atomicity of MM_ALLOC_BIT, and the current master may also misjudge under SMP case.

[anchao]

Doen't this make finding the culprit of the double free (the caller) harder to find?

@davids5 Done, move the user memory cleanup outside of mm_lock() to improve RT performance

[acassis]

ping @anchao