修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/Documentation/vm/active_mm.rst
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..
@@ -64,7 +64,7 @@
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  actually get cases where you have a address space that is _only_ used by
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  lazy users. That is often a short-lived state, because once that thread
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  gets scheduled away in favour of a real thread, the "zombie" mm gets
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- released because "mm_users" becomes zero.
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+ released because "mm_count" becomes zero.
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  Also, a new rule is that _nobody_ ever has "init_mm" as a real MM any
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  more. "init_mm" should be considered just a "lazy context when no other