cc9f53b3ec
When the discard-no-unref flag is enabled, we keep the reference for normal discard requests. But when a discard is executed on a snapshot/qcow2 image with backing, the discards are saved as zero clusters in the snapshot image. When committing the snapshot to the backing file, not discard_in_l2_slice is called but zero_in_l2_slice. Which did not had any logic to keep the reference when discard-no-unref is enabled. Therefor we add logic in the zero_in_l2_slice call to keep the reference on commit. Fixes: https://gitlab.com/qemu-project/qemu/-/issues/1621 Signed-off-by: Jean-Louis Dupond <jean-louis@dupond.be> Message-Id: <20231003125236.216473-2-jean-louis@dupond.be> [hreitz: Made the documentation change more verbose, as discussed on-list] Signed-off-by: Hanna Czenczek <hreitz@redhat.com> (cherry picked from commit b2b109041ecd1095384f5be5bb9badd13c1cf286) Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> |
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.. | ||
acpi.json | ||
audio.json | ||
authz.json | ||
block-core.json | ||
block-export.json | ||
block.json | ||
char.json | ||
common.json | ||
compat.json | ||
control.json | ||
crypto.json | ||
cryptodev.json | ||
cxl.json | ||
dump.json | ||
error.json | ||
introspect.json | ||
job.json | ||
machine-target.json | ||
machine.json | ||
meson.build | ||
migration.json | ||
misc-target.json | ||
misc.json | ||
net.json | ||
opts-visitor.c | ||
pci.json | ||
pragma.json | ||
qapi-clone-visitor.c | ||
qapi-dealloc-visitor.c | ||
qapi-forward-visitor.c | ||
qapi-schema.json | ||
qapi-type-helpers.c | ||
qapi-util.c | ||
qapi-visit-core.c | ||
qdev.json | ||
qmp-dispatch.c | ||
qmp-event.c | ||
qmp-registry.c | ||
qobject-input-visitor.c | ||
qobject-output-visitor.c | ||
qom.json | ||
rdma.json | ||
replay.json | ||
rocker.json | ||
run-state.json | ||
sockets.json | ||
stats.json | ||
string-input-visitor.c | ||
string-output-visitor.c | ||
tpm.json | ||
trace-events | ||
trace.h | ||
trace.json | ||
transaction.json | ||
ui.json | ||
virtio.json | ||
yank.json |