qemu-e2k/target/s390x/tcg
Stefan Hajnoczi 195801d700 system/cpus: rename qemu_mutex_lock_iothread() to bql_lock()
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>
2024-01-08 10:45:43 -05:00
..
cc_helper.c
crypto_helper.c target/helpers: Remove unnecessary 'qemu/main-loop.h' header 2023-08-31 19:47:43 +02:00
excp_helper.c target/helpers: Remove unnecessary 'exec/cpu_ldst.h' header 2023-08-31 19:47:43 +02:00
fpu_helper.c target/helpers: Remove unnecessary 'exec/cpu_ldst.h' header 2023-08-31 19:47:43 +02:00
insn-data.h.inc target/s390x: Fix LAALG not updating cc_src 2023-11-07 19:27:08 +01:00
insn-format.h.inc
int_helper.c
mem_helper.c target/s390x: Fix CLM with M3=0 2023-07-24 18:44:47 +02:00
meson.build
misc_helper.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
s390-tod.h
tcg_s390x.h
translate_vx.c.inc tcg: Rename cpu_env to tcg_env 2023-10-03 08:01:02 -07:00
translate.c target/s390x: Fix LAALG not updating cc_src 2023-11-07 19:27:08 +01:00
vec_fpu_helper.c
vec_helper.c target/s390x: Fix VSTL with a large length 2023-08-23 12:06:44 +02:00
vec_int_helper.c target/s390x: Use clmul_64 2023-09-15 13:57:00 +00:00
vec_string_helper.c target/s390x: Fix the "ignored match" case in VSTRS 2023-08-23 12:06:52 +02:00
vec.h