Re: [RFC 4/5] MMC: Adjust unaligned write accesses.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Monday 21 March 2011 19:03:09 Andreas Dilger wrote:
> Note that mballoc was specifically designed to handle allocation
> requests that are aligned on RAID stripe boundaries, so it should
> be able to handle this for MMC as well.  What is needed is to tell
> the filesystem what the underlying alignment is.  That can be done
> at format time with mke2fs or afterward with tune2fs by using the
> "-E stripe_width" option.

Ah, that sounds useful. So would I set the stripe_width to the
erase block size, and the block group size to a multiple of that?

Does this also work in (rare) cases where the erase block size is
not a power of two?

	Arnd
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux