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https://gitlab.nic.cz/labs/bird.git
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a95141111c
The original algorithm was suffering from an ABA race condition: A: fp = page_stack B: completely allocates the same page and writes into it some data A: unsuspecting, loads (invalid) next = fp->next B: finishes working with the page and returns it back to page_stack A: compare-exchange page_stack: fp => next succeeds and writes garbage to page_stack Fixed this by using an implicit spinlock in hot page allocator.
12 lines
307 B
Makefile
12 lines
307 B
Makefile
src := alloc.c io.c io-loop.c krt.c log.c main.c random.c domain.c
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obj := $(src-o-files)
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$(all-daemon)
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$(cf-local)
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$(conf-y-targets): $(s)krt.Y
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src := $(filter-out main.c, $(src))
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tests_src := alloc_test.c
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tests_targets := $(tests_targets) $(tests-target-files)
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tests_objs := $(tests_objs) $(src-o-files)
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