linux-kernel - Re: [PATCH v3] seqlock: mark raw_read_seqcount and read_seqcount_retry as __always

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Date:   Fri, 16 Aug 2019 12:16:32 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Anders Roxell <anders.roxell@...aro.org>
cc:     peterz@...radead.org, mingo@...hat.com, will@...nel.org,
        linux-kernel@...r.kernel.org, Will Deacon <will.deacon@....com>
Subject: Re: [PATCH v3] seqlock: mark raw_read_seqcount and read_seqcount_retry
 as __always_inline

On Fri, 26 Jul 2019, Anders Roxell wrote:
>  
> -static inline void __seqcount_init(seqcount_t *s, const char *name,
> +static __always_inline void __seqcount_init(seqcount_t *s, const char *name,
>  					  struct lock_class_key *key)

That has nothing to do with the actual problem

> -static inline void raw_write_seqcount_begin(seqcount_t *s)
> +static __always_inline void raw_write_seqcount_begin(seqcount_t *s)

Neither this, nor these:

> -static inline void raw_write_seqcount_end(seqcount_t *s)
> +static __always_inline void raw_write_seqcount_end(seqcount_t *s)
>  {

> -static inline void raw_write_seqcount_barrier(seqcount_t *s)
> +static __always_inline void raw_write_seqcount_barrier(seqcount_t *s)

The following is fine as it is used in the NMI safe time accessors which
can be used as trace clock:

> -static inline int raw_read_seqcount_latch(seqcount_t *s)
> +static __always_inline int raw_read_seqcount_latch(seqcount_t *s)

The rest is bogus...

s/inline/__always_inline/g is conveniant, but does neither match the
changelog nor does it make sense.

Thanks,

	tglx