From: Huang Shijie <b32955@freescale.com>
To: Brian Norris <computersforpeace@gmail.com>
Cc: linux-mtd@lists.infradead.org, dwmw2@infradead.org, dedekind1@gmail.com
Subject: Re: [PATCH v3 06/10] mtd: fix the wrong mtd->type for nand chip
Date: Wed, 28 Aug 2013 17:26:07 +0800 [thread overview]
Message-ID: <521DC22F.4060206@freescale.com> (raw)
In-Reply-To: <521DA6B3.9080003@gmail.com>
于 2013年08月28日 15:28, Brian Norris 写道:
> There is an alternative: that we don't pass MTD_MLCNANDFLASH through
> to user-space (we intercept it and change it to MTD_NANDFLASH in
> ioctl(MEMGETINFO)), and it just appears as "nand" in the sysfs 'type'
> entry. I'm not saying we should do that--I think it's useful to know
> SLC vs. MLC in user-space--but I am saying that we need a proper
> justification. So far I'm the only one who has explained why
> user-space needs this...
There is another issue if we hack the ioctl(MEMGETINFO):
The "flash_eraseall --jffs2" can writes the marker even it is a
MLC nand, since the flash_eraseall
regards the MLC as the SLC.
thanks
Huang Shijie
next prev parent reply other threads:[~2013-08-28 9:25 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-26 9:36 [PATCH v3 00/10] About the SLC/MLC Huang Shijie
2013-08-26 9:36 ` [PATCH v3 01/10] mtd: nand: rename the cellinfo to bits_per_cell Huang Shijie
2013-08-27 17:10 ` Vikram Narayanan
2013-08-28 2:23 ` Huang Shijie
2013-08-28 2:42 ` Brian Norris
2013-08-28 2:45 ` Huang Shijie
2013-08-28 2:48 ` Brian Norris
2013-08-28 2:53 ` Huang Shijie
2013-08-28 3:02 ` Brian Norris
2013-08-28 3:09 ` Huang Shijie
2013-08-26 9:36 ` [PATCH v3 02/10] mtd: set the cell information for ONFI nand Huang Shijie
2013-08-26 9:36 ` [PATCH v3 03/10] mtd: print out the cell information for nand chip Huang Shijie
2013-08-26 9:36 ` [PATCH v3 04/10] mtd: gpmi: rewrite the gpmi_ecc_write_oob() to support the jffs2 Huang Shijie
2013-08-26 9:36 ` [PATCH v3 05/10] mtd: add more comment for MTD_NANDFLASH/MTD_MLCNANDFLASH Huang Shijie
2013-08-26 9:36 ` [PATCH v3 06/10] mtd: fix the wrong mtd->type for nand chip Huang Shijie
2013-08-28 3:08 ` Brian Norris
2013-08-28 6:59 ` Huang Shijie
2013-08-28 7:28 ` Brian Norris
2013-08-28 7:50 ` Huang Shijie
2013-08-28 9:26 ` Huang Shijie [this message]
2013-08-29 1:24 ` Huang Shijie
2013-08-29 5:05 ` Brian Norris
2013-08-29 5:34 ` Huang Shijie
2013-08-29 5:50 ` Huang Shijie
2013-09-04 18:51 ` Brian Norris
[not found] ` <52280278.6020007@freescale.com>
2013-09-17 0:13 ` Brian Norris
2013-08-26 9:36 ` [PATCH v3 07/10] jffs2: do not support the MLC nand Huang Shijie
2013-08-26 9:36 ` [PATCH v3 08/10] mtd: add MTD_MLCNANDFLASH case for mtd_type_show() Huang Shijie
2013-08-26 9:36 ` [PATCH v3 09/10] mtd: add a helper to detect the nand type Huang Shijie
2013-09-17 0:27 ` Brian Norris
2013-08-26 9:36 ` [PATCH v3 10/10] mtd: mtd-abi: " Huang Shijie
2013-08-26 12:41 ` [PATCH v3 00/10] About the SLC/MLC Thomas Petazzoni
2013-08-27 3:30 ` Huang Shijie
2013-10-19 13:32 ` Ezequiel Garcia
2013-10-21 2:58 ` Huang Shijie
2013-10-22 5:11 ` Gupta, Pekon
2013-10-30 22:02 ` Brian Norris
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