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authorSage Weil <sage@newdream.net>2011-02-05 05:45:58 +0100
committerSage Weil <sage@newdream.net>2011-02-05 05:45:58 +0100
commite8e1ba96b207deba1339b09983f8b29f92cb1497 (patch)
tree281f255e549ec247699d9860117c3b684c472997 /net/xfrm
parentlibceph: fix socket write error handling (diff)
downloadlinux-e8e1ba96b207deba1339b09983f8b29f92cb1497.tar.xz
linux-e8e1ba96b207deba1339b09983f8b29f92cb1497.zip
ceph: queue cap_snaps once per realm
We were forming a dirty list, and then queueing cap_snaps for each realm _and_ its children, regardless of whether the children were already in the dirty list. This meant we did it twice for some realms. Which in turn meant we corrupted mdsc->snap_flush_list when the cap_snap was re-added to the list it was already on, and could trigger an infinite loop. We were also using recursion to do reach all the children, a no-no when stack is limited. Instead, (re)queue any children on the dirty list, avoiding processing anything twice and avoiding any recursion. Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'net/xfrm')
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