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seqlock,lockdep: Fix seqcount_latch_init()
[ Upstream commit4817a52b30
] seqcount_init() must be a macro in order to preserve the static variable that is used for the lockdep key. Don't then wrap it in an inline function, which destroys that. Luckily there aren't many users of this function, but fix it before it becomes a problem. Fixes:80793c3471
("seqlock: Introduce seqcount_latch_t") Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/YEeFEbNUVkZaXDp4@hirez.programming.kicks-ass.net Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 1 additions and 4 deletions
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@ -659,10 +659,7 @@ typedef struct {
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* seqcount_latch_init() - runtime initializer for seqcount_latch_t
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* @s: Pointer to the seqcount_latch_t instance
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*/
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static inline void seqcount_latch_init(seqcount_latch_t *s)
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{
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seqcount_init(&s->seqcount);
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}
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#define seqcount_latch_init(s) seqcount_init(&(s)->seqcount)
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/**
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* raw_read_seqcount_latch() - pick even/odd latch data copy
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