Re: [PATCH] cifs: document 'fsc' mount option

[Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>]

On 07/27/2010 10:08 PM, Steve French wrote:
> On Tue, Jul 27, 2010 at 11:33 AM, Suresh Jayaraman <sjayaraman@suse.de> wrote:
>> On 07/27/2010 08:51 PM, Steve French wrote:
>>> scripts/extract-ikconfig could be run against the image (or look at
>>> /proc/config.gz) - but unless there is an easier way to view kernel
>>> config options on particular distros via distro specific tools -
>>> probably easier just to note that CONFIG_FSCACHE must be selected in
>>> the kernel build (since it forces dependencies on the other kernel
>>> options being set)
>>
>> Does something like
>> � � � �$zcat /proc/config.gz | grep CONFIG_CIFS_FSCACHE
>>
>> might work on all distros?
>>
>> But, Jeff's idea of having a features file in /proc sounds good. Apart
>> from using them as a reference to check in documentation, it could be a
>> useful information while collecting debugging output as well..?
> 
> Seems reasonable - but wondering if other file systems have run into the same
> problem - how to view their build/config options - and how they have
> solved it (if at all) so ccing fsdevel
> 

I just checked some of the other filesystems. Most of them just mention
the CONFIG_XXX option has to be set/enabled.

For e.g.

(1) Mount options for jfs

iocharset=name
	...
	This requires CONFIG_NLS_UTF8 to be set in the kernel .config
file.

(2) Mount options for tmpfs

mpol=[default|prefer:Node|bind:NodeList|interleave|interleave:NodeList]
	Set the NUMA  memory  allocation  policy  for  all  files  in  that
instance  (if  the  kernel  CONFIG_NUMA  is enabled) ...


Thanks,

-- 
Suresh Jayaraman