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authorMel Gorman <mgorman@suse.de>2012-06-21 11:36:50 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-06-25 11:25:00 -0700
commit8191e0d9097e0d83d09f43b0c43318de7ca377b6 (patch)
tree59f53e5885df4ab369d01d1e3875b420bb1bebaf /Documentation/stable_kernel_rules.txt
parent679012655acecfa807038ccf9237bba246f9fad8 (diff)
downloadop-kernel-dev-8191e0d9097e0d83d09f43b0c43318de7ca377b6.zip
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stable: Allow merging of backports for serious user-visible performance issues
Distribution kernel maintainers routinely backport fixes for users that were deemed important but not "something critical" as defined by the rules. To users of these kernels they are very serious and failing to fix them reduces the value of -stable. The problem is that the patches fixing these issues are often subtle and prone to regressions in other ways and need greater care and attention. To combat this, these "serious" backports should have a higher barrier to entry. This patch relaxes the rules to allow a distribution maintainer to merge to -stable a backported patch or small series that fixes a "serious" user-visible performance issue. They should include additional information on the user-visible bug affected and a link to the bugzilla entry if available. The same rules about the patch being already in mainline still apply. Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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diff --git a/Documentation/stable_kernel_rules.txt b/Documentation/stable_kernel_rules.txt
index 2edf833..b0714d8 100644
--- a/Documentation/stable_kernel_rules.txt
+++ b/Documentation/stable_kernel_rules.txt
@@ -12,6 +12,12 @@ Rules on what kind of patches are accepted, and which ones are not, into the
marked CONFIG_BROKEN), an oops, a hang, data corruption, a real
security issue, or some "oh, that's not good" issue. In short, something
critical.
+ - Serious issues as reported by a user of a distribution kernel may also
+ be considered if they fix a notable performance or interactivity issue.
+ As these fixes are not as obvious and have a higher risk of a subtle
+ regression they should only be submitted by a distribution kernel
+ maintainer and include an addendum linking to a bugzilla entry if it
+ exists and additional information on the user-visible impact.
- New device IDs and quirks are also accepted.
- No "theoretical race condition" issues, unless an explanation of how the
race can be exploited is also provided.
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