Olivier Houchard 04f5fe87d3 BUG/MEDIUM: memory: Add a rwlock before freeing memory. ... When using lockless pools, add a new rwlock, flush_pool. read-lock it when getting memory from the pool, so that concurrenct access are still authorized, but write-lock it when we're about to free memory, in pool_flush() and pool_gc(). The problem is, when removing an item from the pool, we unreference it to get the next one, however, that pointer may have been free'd in the meanwhile, and that could provoke a crash if the pointer has been unmapped. It should be OK to use a rwlock, as normal operations will still be able to access the pool concurrently, and calls to pool_flush() and pool_gc() should be pretty rare. This should be backported to 2.1, 2.0 and 1.9.		2020-02-01 18:08:34 +01:00
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common	BUG/MEDIUM: memory: Add a rwlock before freeing memory.	2020-02-01 18:08:34 +01:00
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proto	MINOR: task: detect self-wakeups on tl==sched->current instead of TASK_RUNNING	2020-01-31 17:45:10 +01:00
types	MINOR: task: permanently flag tasklets waking themselves up	2020-01-31 17:45:10 +01:00