195801d700
The Big QEMU Lock (BQL) has many names and they are confusing. The actual QemuMutex variable is called qemu_global_mutex but it's commonly referred to as the BQL in discussions and some code comments. The locking APIs, however, are called qemu_mutex_lock_iothread() and qemu_mutex_unlock_iothread(). The "iothread" name is historic and comes from when the main thread was split into into KVM vcpu threads and the "iothread" (now called the main loop thread). I have contributed to the confusion myself by introducing a separate --object iothread, a separate concept unrelated to the BQL. The "iothread" name is no longer appropriate for the BQL. Rename the locking APIs to: - void bql_lock(void) - void bql_unlock(void) - bool bql_locked(void) There are more APIs with "iothread" in their names. Subsequent patches will rename them. There are also comments and documentation that will be updated in later patches. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Paul Durrant <paul@xen.org> Acked-by: Fabiano Rosas <farosas@suse.de> Acked-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Cédric Le Goater <clg@kaod.org> Acked-by: Peter Xu <peterx@redhat.com> Acked-by: Eric Farman <farman@linux.ibm.com> Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Acked-by: Hyman Huang <yong.huang@smartx.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-id: 20240102153529.486531-2-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> |
||
|---|---|---|
| .. | ||
| core-dc232b | ||
| core-dc233c | ||
| core-de212 | ||
| core-de233_fpu | ||
| core-dsp3400 | ||
| core-fsf | ||
| core-lx106 | ||
| core-sample_controller | ||
| core-test_kc705_be | ||
| core-test_mmuhifi_c3 | ||
| core-dc232b.c | ||
| core-dc233c.c | ||
| core-de212.c | ||
| core-de233_fpu.c | ||
| core-dsp3400.c | ||
| core-fsf.c | ||
| core-lx106.c | ||
| core-sample_controller.c | ||
| core-test_kc705_be.c | ||
| core-test_mmuhifi_c3.c | ||
| cores.list | ||
| cpu-param.h | ||
| cpu-qom.h | ||
| cpu.c | ||
| cpu.h | ||
| dbg_helper.c | ||
| exc_helper.c | ||
| fpu_helper.c | ||
| gdbstub.c | ||
| helper.c | ||
| helper.h | ||
| import_core.sh | ||
| Kconfig | ||
| meson.build | ||
| mmu_helper.c | ||
| monitor.c | ||
| op_helper.c | ||
| overlay_tool.h | ||
| translate.c | ||
| win_helper.c | ||
| xtensa-isa-internal.h | ||
| xtensa-isa.c | ||
| xtensa-isa.h | ||
| xtensa-semi.c | ||