Messages in this thread Patch in this message | | | From | Jarkko Sakkinen <> | Subject | [PATCH v4 2/7] kprobes: Use lock_modules() and unlock_modules() | Date | Fri, 17 Jul 2020 06:04:16 +0300 |
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Use lock_modules() and unlock_modules() in order to remove compile time dependency to the module subsystem.
Cc: Andi Kleen <ak@linux.intel.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> --- kernel/kprobes.c | 4 ++-- kernel/trace/trace_kprobe.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 2e97febeef77..4e46d96d4e16 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -564,7 +564,7 @@ static void kprobe_optimizer(struct work_struct *work) cpus_read_lock(); mutex_lock(&text_mutex); /* Lock modules while optimizing kprobes */ - mutex_lock(&module_mutex); + lock_modules(); /* * Step 1: Unoptimize kprobes and collect cleaned (unused and disarmed) @@ -589,7 +589,7 @@ static void kprobe_optimizer(struct work_struct *work) /* Step 4: Free cleaned kprobes after quiesence period */ do_free_cleaned_kprobes(); - mutex_unlock(&module_mutex); + unlock_modules(); mutex_unlock(&text_mutex); cpus_read_unlock(); diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index aefb6065b508..710ec6a6aa8f 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -122,9 +122,9 @@ static nokprobe_inline bool trace_kprobe_module_exist(struct trace_kprobe *tk) if (!p) return true; *p = '\0'; - mutex_lock(&module_mutex); + lock_modules(); ret = !!find_module(tk->symbol); - mutex_unlock(&module_mutex); + unlock_modules(); *p = ':'; return ret; -- 2.25.1
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