> +static inline void delayacct_blkio(void)
> +{
> + if (unlikely(current->delays && delayacct_on))
> + __delayacct_blkio();
> +}
why is this unlikely?
> + u64 blkio_delay; /* wait for sync block io completion */
this misses O_SYNC, msync(), and general throttling.
I get the feeling this is being measured at the wrong level
currently.... since the number of entry points that needs measuring at
the current level is hardly finite...
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