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[Xen-devel] The differences between two patch methods in Xen?
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] The differences between two patch methods in Xen? |
| From: | Zongyun Lai <zlai.zju@xxxxxxxxx> |
| Date: | Sat, 7 Apr 2007 14:45:32 +0800 |
| Delivery-date: | Sat, 07 Apr 2007 00:04:08 -0700 |
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Hi all,
I am new to Xen. I have gone through the source code directory of
xen-unstable, and have kept a log of all the compiling procedure. I noticed
that 'make dist-kernels' command will apply patches
from 'patches/linux-2.6.18/' to the vanilla kernel. And after that, the
command will apply the the so-call 'arch-xen patches'
in 'linux-2.6-xen-sparse' directory to the patched kernel by
running ./mkbuildtree command. I found that this procedure is actually
not 'patching', but just overwrite some .c, .h, Kconfig and Makefile in
the 'linux-2.6.18-xen' by symbolic links to the 'linux-2.6-xen-sparse'
directory.
So, my question is what is the differences between the two patch
mechanisms, one in the 'patches' directory, and the other in
the 'linux-2.6-xen-sparse' directory? That is to say, what is the reason to
keep them separate instead of keeping them in a common patch pool?
Cheers,
Zongyun
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