On Wed, Oct 4, 2017 at 8:14 AM, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote: > On Tue, Oct 3, 2017 at 11:57 PM, Avri Altman <Avri.Altman@xxxxxxx> wrote: > >> Multiple simultaneous accesses is forbidden. >> So maybe direct recounting is better for controlling it? > > That is already handled by patches: > > commit 614f0388f580c436d2cf6dc0855de91d13ddc23d > "mmc: block: move single ioctl() commands to block requests" > commit 3ecd8cf23f88d5df1c545a5c04217987abb28575 > "mmc: block: move multi-ioctl() to use block layer" > > Since all ioctl()s are not sent in through the block queue Since all ioctl()s are NOW sent in through the block queue > they get serialized by the very nature of how block requests > work, i.e. one at a time. I have even tried to send RPMB > commands from two consoles while a huge dd work was already > working in the background. No problems with that. Sorry for spellling mistakes. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
