[RFC][PATCH 01/12 v3] x86/kvm/tracing: Use helper function trace_seq_buffer_ptr()

Steven Rostedt
2014-11-04T16:06:26Z

[-- Attachment #1: 0001-x86-kvm-tracing-Use-helper-function-trace_seq_buffer.patch --]
[-- Type: text/plain, Size: 1227 bytes --]

From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>

To allow for the restructiong of the trace_seq code, we need users
of it to use the helper functions instead of accessing the internals
of the trace_seq structure itself.

Cc: Mark Rustad <mark.d.rustad@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
arch/x86/kvm/mmutrace.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
index 5aaf35641768..ce463a9cc8fb 100644
--- a/arch/x86/kvm/mmutrace.h
+++ b/arch/x86/kvm/mmutrace.h
@@ -22,7 +22,7 @@
__entry->unsync = sp->unsync;

#define KVM_MMU_PAGE_PRINTK() ({ \
- const u32 saved_len = p->len; \
+ const char *saved_ptr = trace_seq_buffer_ptr(p); \
static const char *access_str[] = { \
"---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux" \
}; \
@@ -41,7 +41,7 @@
role.nxe ? "" : "!", \
__entry->root_count, \
__entry->unsync ? "unsync" : "sync", 0); \
- p->buffer + saved_len; \
+ saved_ptr; \
})

#define kvm_mmu_trace_pferr_flags \
--
2.1.1