Lustre discuss - Aug 2010 - would patches in kernel_patches/patches change under the same name?

Hi,

I am new to lustre source building, and I need help in one
question about the patches in the lustre tree.

Since I do not see version number associated with any given
patch, I am not sure if it is possible a patch under the same
patch name in two different releases diffs?

The kernel_patches/series directory contains series files
for different OS''es. The contents of series for a given OS
can be different from one lustre release to another. However,
can I assume that patches would be kept the same
through different lustre releases? At least, through all
1.8.x releases?

Thanks,
jay

On 2010-08-26, at 19:59, Jay Lan wrote:
> I am new to lustre source building, and I need help in one
> question about the patches in the lustre tree.
> 
> Since I do not see version number associated with any given
> patch, I am not sure if it is possible a patch under the same
> patch name in two different releases diffs?
> 
> The kernel_patches/series directory contains series files
> for different OS''es. The contents of series for a given OS
> can be different from one lustre release to another. However,
> can I assume that patches would be kept the same
> through different lustre releases? At least, through all
> 1.8.x releases?
The kernel patches for a specific Lustre release are only sure to work for the
kernel version described in lustre/ChangeLog.  They may work on earlier or later
kernels (chance is proportional to the difference of the kernel version :-).

In general, we discourage people building server kernels for different kernels,
because the servers should only be running Lustre, and can run the specific
kernel version that is known to work with that version of Lustre.

You can download the exact matching kernel sources at
http://downloads.lustre.org/ so that you are sure to get a matching kernel.

Cheers, Andreas
--
Andreas Dilger
Lustre Technical Lead
Oracle Corporation Canada Inc.