Re: Question for emmc ioctl sync issue

2014-05-23 Thread Johan Rudholm
Hi Wan, 2014-05-19 9:55 GMT+02:00 Wan ZongShun : > Hi all, > > I have a question for mmc_blk_ioctl_cmd. > > I did not see any sync code in this function like mutex, semphere.., why? > The ioctl will do partition switch as I know, so If more partitions > call the ioctl from user layer at the same t

Question for emmc ioctl sync issue

2014-05-19 Thread Wan ZongShun
Hi all, I have a question for mmc_blk_ioctl_cmd. I did not see any sync code in this function like mutex, semphere.., why? The ioctl will do partition switch as I know, so If more partitions call the ioctl from user layer at the same time, how to sync with them? -- Wan ZongShun. www.mcuos.com -