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Bug #52962

rbd: increase overlap range when overlap occur.

Added by jianpeng ma about 2 months ago. Updated about 2 months ago.

Status:
Fix Under Review
Priority:
Normal
Assignee:
Target version:
-
% Done:

0%

Source:
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

We use BlockGuard to avoid reorder when overlap occur. But the following
case don't work:
a: write(3,5)
b: write(4,9)
c: write(8, 11).
b overlap w/ a, so it append in a. c overlap w/ b.
In fact, c shuld append b. But currently, it can't change overlap range
when b overlap a occur. The c can't be detained and issue before b.
We should change overlap from (3,5) to (3, 9) when b overlap a.

History

#1 Updated by Ilya Dryomov about 2 months ago

  • Status changed from New to Fix Under Review
  • Pull request ID set to 43518

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