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e7bc0204e5
By changing the way the main QEMU event loop is invoked, I inadvertently
changed the BQL status of exit notifiers: some of them implicitly
assumed they would be called with the BQL held; the BQL is however
not held during the exit(status) call in qemu_default_main().
Instead of attempting to ensuring we always call exit() from the BQL -
including any transitive calls - this change adds a BQL lock guard to
qemu_run_exit_notifiers, ensuring the BQL will always be held in the
exit notifiers.
Additionally, the BQL promise is now documented at the
qemu_{add,remove}_exit_notifier() declarations.
Fixes:
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|---|---|---|
| .. | ||
| arch_init.c | ||
| async-teardown.c | ||
| balloon.c | ||
| bootdevice.c | ||
| cpu-timers.c | ||
| cpus.c | ||
| datadir.c | ||
| device_tree-stub.c | ||
| device_tree.c | ||
| dirtylimit.c | ||
| dma-helpers.c | ||
| globals.c | ||
| ioport.c | ||
| main.c | ||
| memory.c | ||
| memory_ldst.c.inc | ||
| memory_mapping.c | ||
| meson.build | ||
| physmem.c | ||
| qdev-monitor.c | ||
| qemu-seccomp.c | ||
| qtest.c | ||
| rtc.c | ||
| runstate-action.c | ||
| runstate-hmp-cmds.c | ||
| runstate.c | ||
| tpm-hmp-cmds.c | ||
| tpm.c | ||
| trace-events | ||
| trace.h | ||
| vl.c | ||
| watchpoint.c | ||