Re: U64 Ordering in File System Code of Btrfs

2014-08-28 Thread nick


On 14-08-28 02:12 AM, anupam kapoor wrote:
>> [Thu, 28 Aug 2014 00:54:47 -0400]: "nick" (nick):
> ,[ nick ]
> | Hey Guys,
> | Thanks for the help so far. I am wondering after reading the btrfs
> | code for certain functions there seem to
> | be a lot of u64 variable and function returns of this type. Is this
> | common in file system due to the disk
> | being in a certain format and depending on the CPU being big or small
> | endian that this needed to not reorder
> | the disk parts that are being read into main memory and preserve the data's 
> ordering?
> | Cheers Nick 
> `
> on disk format is little-endian.
> 
> have a look at https://btrfs.wiki.kernel.org/index.php/Main_Page for
> more information. 
> 
> kind regards
> anupam
> 
Forget to check the wiki and found what I was looking for. In addition, the 
code docs for the kernel
are some of the best I am ever seen, the only three that even compare are the 
Yocto Project, Arch Wiki
and Red Hat docs. Now I understand why you guys state to read the docs first :).
Cheers Nick 

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Re: U64 Ordering in File System Code of Btrfs

2014-08-27 Thread anupam kapoor
> [Thu, 28 Aug 2014 00:54:47 -0400]: "nick" (nick):
,[ nick ]
| Hey Guys,
| Thanks for the help so far. I am wondering after reading the btrfs
| code for certain functions there seem to
| be a lot of u64 variable and function returns of this type. Is this
| common in file system due to the disk
| being in a certain format and depending on the CPU being big or small
| endian that this needed to not reorder
| the disk parts that are being read into main memory and preserve the data's 
ordering?
| Cheers Nick 
`
on disk format is little-endian.

have a look at https://btrfs.wiki.kernel.org/index.php/Main_Page for
more information. 

kind regards
anupam


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U64 Ordering in File System Code of Btrfs

2014-08-27 Thread nick
Hey Guys,
Thanks for the help so far. I am wondering after reading the btrfs code for 
certain functions there seem to 
be a lot of u64 variable and function returns of this type. Is this common in 
file system due to the disk
being in a certain format and depending on the CPU being big or small endian 
that this needed to not reorder
the disk parts that are being read into main memory and preserve the data's 
ordering?
Cheers Nick 

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