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16 Commits

Author SHA1 Message Date
Artem Savkov 808a6b83de patch-author-guide: sleeping locks in callbacks 
Add a note about dealing with sleeping locks in callbacks.
 2018-04-06 16:28:02 +02:00
Joe Lawrence 926e4e0c7d kmod: add support for in-kernel livepatch hooks 
Upstream 4.15 kernels provide support for pre and post (un)patch
callbacks, inspired by the kpatch load hooks.  Add support for them
in the livepatch-patch-hook.

At the same time, convert the kpatch hooks to use the same API.

Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
 2018-03-23 10:32:14 -04:00
Simon Ruderich c06d17f020 doc: patch-author-guide: fix minor typo 2017-10-12 09:15:18 +02:00
Josh Poimboeuf 8bc0b5cf39 doc: document workaround for printk_once() and friends 
I couldn't find a good place in the document for this, so I just added
an "Other issues" section at the end.

Fixes #738.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
 2017-09-22 14:52:09 -05:00
Joe Lawrence 29d11709c3 doc: more unexpected changed function examples 2017-04-20 17:11:25 -04:00
Joe Lawrence e124028b65 doc: shadow variable notes 2017-04-20 11:17:54 -04:00
Joe Lawrence dd18205539 doc: code removal blurb 2017-04-20 11:17:51 -04:00
Joe Lawrence 2ae4f5af4a doc: function prototype change workaround suggestion 2017-04-20 10:47:18 -04:00
Joe Lawrence 81c4f63642 doc: add locking semantic example 2017-03-27 13:36:35 -04:00
Joe Lawrence de4042304c doc: add data semantic example to author guide 2017-03-27 11:42:28 -04:00
Joe Lawrence d072845816 doc: clarify (un)load hook execution context 2017-03-27 11:42:23 -04:00
Joe Lawrence d90b9afbd9 doc: add shadow variable example to patch author guide 
Add shadow variable examples and text.
 2017-03-15 14:50:31 -04:00
Joe Lawrence d7aae34a0d doc: add (un)load hook example to patch author guide 
Describe the kpatch (un)load hooks a little more and add in an example
from a recent CVE fix.
 2017-03-14 15:48:34 -04:00
Josh Poimboeuf 7535471b1d doc: some patch author guide updates 
Update the patch author guide to reflect some recent experiences (with
upstream commits 19be0eaffa3a and 906c55579a63).
 2016-11-18 10:59:07 -06:00
Chris J Arges b28c2b0638 Add section on removing static local references. 
This was discovered when trying to patch a netfilter issue and resulted in the following issue:
https://github.com/dynup/kpatch/issues/599

This patch adds some documentation in case this situation is encountered in the future.
 2016-07-01 14:21:29 -05:00
Josh Poimboeuf 85b7a76acc doc: patch author guide, first take 
Been wanting to write this forever, have to start somewhere...
 2015-11-16 15:23:16 -06:00