On Tue, Feb 14, 2017 at 08:27:36PM -0500, Weiwei Jia wrote: > Hi, > > When I read Linux Kernel source codes about how "blkio_delay_total" > (delay waiting for synchronous block I/O to complete for one task) is > calculated in Linux/kernel/delayacct.c file [1], I find that > "blkio_delay_total" adds "task->delays->blkio_delay" to be the total > delay time for one task to wait for synchronous I/O dynamically but > "tsk->delays->blkio_delay" has already been calculated as the total > delay time that one task is waiting for synchronous I/O [2] > dynamically. I think "blkio_delay_total" should not add > "task->delays->blkio_delay" since "task->delays->blkio_delay" is > already the total delay time we want. > > Am I missing anything?
Why are you sending this to me? You have read Documentation/SubmittingPatches, right? Please use scripts/get_maintainers.pl for who to send patches to. thanks, greg k-h