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authorXavier Hernandez <xhernandez@datalab.es>2016-06-13 12:42:47 +0200
committerXavier Hernandez <xhernandez@datalab.es>2016-07-17 23:29:05 -0700
commit74d2aaf51c7ff601e4394cad9f8e23092267af55 (patch)
tree900ec3b53c2e0d62e77aedeb4fb1b9735a42a16a /xlators/mgmt
parent338aa4634fe0aa8723349763871b3933b14d54ff (diff)
cluster/ec: Fix race in timer cancellation
A race in timer cancellation for delayed unlock could cause a crash if the cancelling thread fails to cancel the timer because it has already been fired but not executed, and the callback is scheduled out of the CPU, delaying it until the thread has released important resources needed by the callback. This patch improves the handling of this case to make it robust. Backport of: > Change-Id: I5c8a8c6610c5136f71b938aa78b5878ba05238d4 > BUG: 1345855 > Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> > Reviewed-on: http://review.gluster.org/14712 > Smoke: Gluster Build System <jenkins@build.gluster.com> > NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> > CentOS-regression: Gluster Build System <jenkins@build.gluster.com> > Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Change-Id: I5c8a8c6610c5136f71b938aa78b5878ba05238d4 BUG: 1346156 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/14724 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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