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| author | Mahmoud Mandour <ma.mandourr@gmail.com> | 2021-07-21 00:26:56 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2021-07-23 17:22:16 +0100 |
| commit | 072c444b0d948451771b0245b74d5310a00e3dd2 (patch) | |
| tree | 146b9a21bbc8edf89a5d77bc98ff7eb97e4b38a8 /contrib/plugins | |
| parent | de9fc40f36ab8e696d1c69727e80a80c46f20978 (diff) | |
| download | qemu-072c444b0d948451771b0245b74d5310a00e3dd2.zip qemu-072c444b0d948451771b0245b74d5310a00e3dd2.tar.gz qemu-072c444b0d948451771b0245b74d5310a00e3dd2.tar.bz2 | |
plugins/cache: limited the scope of a mutex lock
It's not necessary to lock the address translation portion of the
vcpu_mem_access callback.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210714172151.8494-3-ma.mandourr@gmail.com>
Message-Id: <20210720232703.10650-23-alex.bennee@linaro.org>
Diffstat (limited to 'contrib/plugins')
| -rw-r--r-- | contrib/plugins/cache.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/contrib/plugins/cache.c b/contrib/plugins/cache.c index 4a71602..695fb96 100644 --- a/contrib/plugins/cache.c +++ b/contrib/plugins/cache.c @@ -355,15 +355,14 @@ static void vcpu_mem_access(unsigned int vcpu_index, qemu_plugin_meminfo_t info, struct qemu_plugin_hwaddr *hwaddr; InsnData *insn; - g_mutex_lock(&mtx); hwaddr = qemu_plugin_get_hwaddr(info, vaddr); if (hwaddr && qemu_plugin_hwaddr_is_io(hwaddr)) { - g_mutex_unlock(&mtx); return; } effective_addr = hwaddr ? qemu_plugin_hwaddr_phys_addr(hwaddr) : vaddr; + g_mutex_lock(&mtx); if (!access_cache(dcache, effective_addr)) { insn = (InsnData *) userdata; insn->dmisses++; |