From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/kernel/trace/blktrace.c | 17 ++++++++---------
1 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/kernel/kernel/trace/blktrace.c b/kernel/kernel/trace/blktrace.c
index b3afd10..b89ff18 100644
--- a/kernel/kernel/trace/blktrace.c
+++ b/kernel/kernel/trace/blktrace.c
@@ -72,17 +72,17 @@
struct blk_io_trace *t;
struct ring_buffer_event *event = NULL;
struct trace_buffer *buffer = NULL;
- unsigned int trace_ctx = 0;
+ int pc = 0;
int cpu = smp_processor_id();
bool blk_tracer = blk_tracer_enabled;
ssize_t cgid_len = cgid ? sizeof(cgid) : 0;
if (blk_tracer) {
buffer = blk_tr->array_buffer.buffer;
- trace_ctx = tracing_gen_ctx_flags(0);
+ pc = preempt_count();
event = trace_buffer_lock_reserve(buffer, TRACE_BLK,
sizeof(*t) + len + cgid_len,
- trace_ctx);
+ 0, pc);
if (!event)
return;
t = ring_buffer_event_data(event);
@@ -107,7 +107,7 @@
memcpy((void *) t + sizeof(*t) + cgid_len, data, len);
if (blk_tracer)
- trace_buffer_unlock_commit(blk_tr, buffer, event, trace_ctx);
+ trace_buffer_unlock_commit(blk_tr, buffer, event, 0, pc);
}
}
@@ -222,9 +222,8 @@
struct blk_io_trace *t;
unsigned long flags = 0;
unsigned long *sequence;
- unsigned int trace_ctx = 0;
pid_t pid;
- int cpu;
+ int cpu, pc = 0;
bool blk_tracer = blk_tracer_enabled;
ssize_t cgid_len = cgid ? sizeof(cgid) : 0;
@@ -253,10 +252,10 @@
tracing_record_cmdline(current);
buffer = blk_tr->array_buffer.buffer;
- trace_ctx = tracing_gen_ctx_flags(0);
+ pc = preempt_count();
event = trace_buffer_lock_reserve(buffer, TRACE_BLK,
sizeof(*t) + pdu_len + cgid_len,
- trace_ctx);
+ 0, pc);
if (!event)
return;
t = ring_buffer_event_data(event);
@@ -302,7 +301,7 @@
memcpy((void *)t + sizeof(*t) + cgid_len, pdu_data, pdu_len);
if (blk_tracer) {
- trace_buffer_unlock_commit(blk_tr, buffer, event, trace_ctx);
+ trace_buffer_unlock_commit(blk_tr, buffer, event, 0, pc);
return;
}
}
--
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