2009/6/21 Pavel Machek :
>
>> >> 1. Disk-based filesystems such as ext2/ext3 were designed for optimum
>> >> performance on spinning disk media, so they implement features such
>> >> as block groups, which attempts to group inode data into a contiguous
>> >> set of data blocks to minimize
2009/6/21 Arnd Bergmann :
> On Sunday 21 June 2009, Marco wrote:
>> I was thinking about your comment and I think I'll use __kernel_off_t
>> for the exported headers. I know that it will differ between 32 and 64
>> bit architectures, but for this kind of fs there isn't any compatibility
>> problem
This patch modified the MMC core code to optionally call the
set_ios() operation on the driver with the clock frequency set
to 0 to gate the hardware block clock (and thus the MCI clock)
for an MMC host controller after a grace period of at least 8
MCLK cycles. It is inspired by existing clock gati
This adds a few clk_enable()/clk_disable() calls to the MMCI
driver so as to handle an set_ios() request with clock
frequency set to 0 as an instruction to gate the block clock.
This also breaks out the clock setting code into its own
function to simplify the set_ios() function a bit.
Signed-off-b
> >> 1. Disk-based filesystems such as ext2/ext3 were designed for optimum
> >>performance on spinning disk media, so they implement features such
> >>as block groups, which attempts to group inode data into a contiguous
> >>set of data blocks to minimize disk seeking when accessing fi
On Sun, 21 Jun 2009 22:05:18 +0200
Linus Walleij wrote:
> 2009/6/18 Linus Walleij :
>
> > diff --git a/drivers/mmc/core/Kconfig b/drivers/mmc/core/Kconfig
> >(...)
> > + Of unsure, say N.
>
> However the rest of the patch is as I intended. I'll send a V4 pronto
> if you want that for th
On Sunday 21 June 2009, Marco wrote:
> I was thinking about your comment and I think I'll use __kernel_off_t
> for the exported headers. I know that it will differ between 32 and 64
> bit architectures, but for this kind of fs there isn't any compatibility
> problem at layout level. You cannot remo
2009/6/18 Linus Walleij :
> diff --git a/drivers/mmc/core/Kconfig b/drivers/mmc/core/Kconfig
>(...)
> + Of unsure, say N.
However the rest of the patch is as I intended. I'll send a V4 pronto
if you want that for the current merge window.
Linus Walleij
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Pavel Machek wrote:
>>> Why is an entire filesystem needed, instead of simply a block driver
>>> if the ramdisk driver cannot be used?
>>>
>> >From documentation:
>>
>> "A relatively straight-forward solution is to write a simple block
>> driver for the non-volatile RAM, and mount over it any disk-
Arnd Bergmann wrote:
> On Saturday 13 June 2009, Sam Ravnborg wrote:
>>> + union {
>>> + struct {
>>> + /*
>>> + * ptr to row block of 2D block pointer array,
>>> + * file block #'s 0 to (blocksize/4)^2 - 1.
>>> +
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