RE: [PATCH 5/5] mmc: block: move multi-ioctl() to use block layer

Tue, 23 May 2017 02:22:15 -0700 


> -----Original Message-----
> From: [email protected] [mailto:linux-mmc-
> [email protected]] On Behalf Of Linus Walleij
> Sent: Wednesday, May 10, 2017 11:24 AM
> To: [email protected]; Ulf Hansson <[email protected]>;
> Adrian Hunter <[email protected]>
> Cc: [email protected]; Jens Axboe <[email protected]>; Christoph
> Hellwig <[email protected]>; Arnd Bergmann <[email protected]>; Bartlomiej
> Zolnierkiewicz <[email protected]>; Paolo Valente
> <[email protected]>; Linus Walleij <[email protected]>
> Subject: [PATCH 5/5] mmc: block: move multi-ioctl() to use block layer
> 
> This switches also the multiple-command ioctl() call to issue all ioctl()s
> through the block layer instead of going directly to the device.
> 
> We extend the passed argument with an argument count and loop over all
> passed commands in the ioctl() issue function called from the block layer.
> 
> By doing this we are again loosening the grip on the big host lock, since two
> calls to mmc_get_card()/mmc_put_card() are removed.
> 
> Signed-off-by: Linus Walleij <[email protected]>
Tested-by: Avri Altman <[email protected]>























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