Re: [REVIEW] Don't make lazy counters default for mkfs

[Mark Goodwin <markgw@sgi.com>]

Russell Cattelan wrote:
> Eric Sandeen wrote:
>> Russell Cattelan wrote:
>>
>>
>>
>>>> Hmm, that still seems pretty soon to me.  I'd have thought you'd at
>>>> least want to wait until most of the distributions (esp. SUSE for you
>>>> guys) have released versions that have kernels sufficiently recent
>>>> that the default mkfs will work.  Otherwise this will be a recurring
>>>> problem.
>>>>
>>> I don't suppose there is an easy way to query xfs and find out if it
>>> can support
>>> the lazy SB option?
>>
>> I thought about that; xfs *could* stick someting in /proc/fs/xfs with
>> supported features or somesuch.

how about /proc/fs/xfs/features
.. any format suggestions?

>> But, the kernel you mkfs under isn't necessarily the one you're going to
>> need to fall back to tomorrow, though...

nor the one you just installed but haven't rebooted into yet

> True but at least it could make a bit of a intelligent decision.
> and maybe a warning for a while about potentially incompatible flags.

yes agree

Cheers

-- 

  Mark Goodwin                                  markgw@sgi.com
  Engineering Manager for XFS and PCP    Phone: +61-3-99631937
  SGI Australian Software Group           Cell: +61-4-18969583
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