* XFS -git changes and Linux-VServer patch porting
@ 2007-07-18 13:49 Radoslaw Szkodzinski
2007-07-18 16:42 ` Josef Sipek
0 siblings, 1 reply; 2+ messages in thread
From: Radoslaw Szkodzinski @ 2007-07-18 13:49 UTC (permalink / raw)
To: Linux Kernel Mailing List, xfs
Linux-VServer patch adds 2 new flags: barrier and iunlink.
With recent changes in -git (filestreams), XFS now lacks di_flags bits
to add these.
iunlink flag adds Copy-on-Write semantics to hard links, while barrier
flag signifies a filesystem barrier no virtual context can pass.
I'd like to know how to possibly resolve this problem w/o negatively
impacting performance (especially of iunlink) or changing on-disc
format in an incompatible way, as well as being more future-proof.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: XFS -git changes and Linux-VServer patch porting
2007-07-18 13:49 XFS -git changes and Linux-VServer patch porting Radoslaw Szkodzinski
@ 2007-07-18 16:42 ` Josef Sipek
0 siblings, 0 replies; 2+ messages in thread
From: Josef Sipek @ 2007-07-18 16:42 UTC (permalink / raw)
To: Radoslaw Szkodzinski; +Cc: Linux Kernel Mailing List, xfs
On Wed, Jul 18, 2007 at 03:49:07PM +0200, Radoslaw Szkodzinski wrote:
> Linux-VServer patch adds 2 new flags: barrier and iunlink.
> With recent changes in -git (filestreams), XFS now lacks di_flags bits
> to add these.
> iunlink flag adds Copy-on-Write semantics to hard links, while barrier
> flag signifies a filesystem barrier no virtual context can pass.
>
> I'd like to know how to possibly resolve this problem w/o negatively
> impacting performance (especially of iunlink) or changing on-disc
> format in an incompatible way, as well as being more future-proof.
A while back, I mentioned that it would be nice to have a whiteout inode
flag (I've since changed my mind) but the answer I got from Dave Chinner,
et. al., was to use xattrs.
Josef 'Jeff' Sipek.
--
If I have trouble installing Linux, something is wrong. Very wrong.
- Linus Torvalds
^ permalink raw reply [flat|nested] 2+ messages in thread
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