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 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. 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
