lkml.org 
[lkml]   [2011]   [Oct]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v11] mmc : general purpose partition support.
Hi,

----- Original Message -----
> From: "Namjae Jeon" <linkinjeon@gmail.com>
> To: cjb@laptop.org, linux-mmc@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org, awarkentin@vmware.com, "adrian hunter" <adrian.hunter@intel.com>, "linus walleij"
> <linus.walleij@linaro.org>, "james p freyensee" <james_p_freyensee@linux.intel.com>, sebras@gmail.com, "Ulf Hansson"
> <Ulf.Hansson@stericsson.com>, "stefan xk nilsson" <stefan.xk.nilsson@stericsson.com>, "per forlin"
> <per.forlin@stericsson.com>, "johan rudholm" <johan.rudholm@stericsson.com>, "Namjae Jeon" <linkinjeon@gmail.com>
> Sent: Wednesday, October 5, 2011 10:45:45 AM
> Subject: [PATCH v11] mmc : general purpose partition support.
> It allows gerneral purpose partitions in MMC Device.
> And I try to simpliy make mmc_blk_alloc_parts using mmc_part
> structure suggested by Andrei Warkentin.
> After patching, we can see general purpose partitions like this.
> > cat /proc/partitions
> 179 0 847872 mmcblk0
> 179 192 4096 mmcblk0gp3
> 179 160 4096 mmcblk0gp2
> 179 128 4096 mmcblk0gp1
> 179 96 1052672 mmcblk0gp0
> 179 64 1024 mmcblk0boot1
> 179 32 1024 mmcblk0boot0
>
> Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
> ---
> drivers/mmc/card/block.c | 41 +++++++++++++++++++++++------------
> drivers/mmc/core/mmc.c | 52
> ++++++++++++++++++++++++++++++++++++++++++---
> include/linux/mmc/card.h | 34 +++++++++++++++++++++++++++++-
> include/linux/mmc/mmc.h | 5 +++-
> 4 files changed, 112 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
> + for (idx = 0; idx < card->nr_parts; idx++) {
> + if (mmc_is_boot_partition(&card->part[idx]) &&
> + !mmc_boot_partition_access(card->host))
> + continue;
> + if (card->part[idx].size) {
> + ret = mmc_blk_alloc_part(card, md,
> + card->part[idx].part_cfg,
> + card->part[idx].size >> 9,
> + card->part[idx].force_ro,
> + card->part[idx].name);
> + if (ret)
> + return ret;
> + }
> }

Is there any reason for putting the mmc_boot_partition_access() logic here? If
boot partitions are not allowed by host, then just don't add the mmc_parts to
the parts array, no? Such minutae should belong in core mmc code, not block driver, IMHO.

A


\
 
 \ /
  Last update: 2011-10-05 17:37    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site