Am 06.05.2015 um 13:29 hat Kevin Wolf geschrieben: > Before a freed cluster can be reused, pending discards for this cluster > must be processed. > > The original assumption was that this was not a problem because discards > are only cached during discard/write zeroes operations, which are > synchronous so that no concurrent write requests can cause cluster > allocations. > > However, the discard/write zeroes operation itself can allocate a new L2 > table (and it has to in order to put zero flags there), so make sure we > can cope with the situation. > > This fixes https://bugs.launchpad.net/bugs/1349972. > > Signed-off-by: Kevin Wolf <kw...@redhat.com>
Cc: qemu-sta...@nongnu.org Applied to my block branch. Kevin
