util/log: Rename qemu_log_lock to qemu_log_trylock

This function can fail, which makes it more like ftrylockfile
or pthread_mutex_trylock than flockfile or pthread_mutex_lock,
so rename it.

To closer match the other trylock functions, release rcu_read_lock
along the failure path, so that qemu_log_unlock need not be called
on failure.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-8-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-17 11:29:47 -07:00
parent c59fe6e536
commit c60f599bcb
12 changed files with 18 additions and 16 deletions

View file

@ -214,7 +214,7 @@ static inline void log_cpu_exec(target_ulong pc, CPUState *cpu,
#if defined(DEBUG_DISAS)
if (qemu_loglevel_mask(CPU_LOG_TB_CPU)) {
FILE *logfile = qemu_log_lock();
FILE *logfile = qemu_log_trylock();
int flags = 0;
if (qemu_loglevel_mask(CPU_LOG_TB_FPU)) {