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authorStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2010-12-06 16:08:02 +0000
committerKevin Wolf <kwolf@redhat.com>2010-12-17 16:11:04 +0100
commiteabba580e6bb8d6b969c1368c6f90d72b4cde4f4 (patch)
tree879b2822adbf7fea8d7ac7a1166f22d40d3b4d77 /compatfd.c
parent298800cae72eb2a549374189e87615b2b0b79262 (diff)
qed: Read/write support
This patch implements the read/write state machine. Operations are fully asynchronous and multiple operations may be active at any time. Allocating writes lock tables to ensure metadata updates do not interfere with each other. If two allocating writes need to update the same L2 table they will run sequentially. If two allocating writes need to update different L2 tables they will run in parallel. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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