xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MN10300: Save frame pointer in thread_info struct rather than global var

Browse Source 
Save the current exception frame pointer in the thread_info struct rather than
in a global variable as the latter makes SMP tricky, especially when preemption
is also enabled.

This also replaces __frame with current_frame() and rearranges header file
inclusions to make it all compile.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
This commit is contained in:
David Howells
2010-10-27 17:29:01 +01:00
parent a5e03ca2fd
commit 7c7fcf762e
15 changed files with 76 additions and 146 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mn10300/kernel/asm-offsets.c
View File

@@ -23,6 +23,7 @@ void foo(void)
OFFSET(TI_task, thread_info, task);
OFFSET(TI_exec_domain, thread_info, exec_domain);
OFFSET(TI_frame, thread_info, frame);
OFFSET(TI_flags, thread_info, flags);
OFFSET(TI_cpu, thread_info, cpu);
OFFSET(TI_preempt_count, thread_info, preempt_count);
@@ -66,7 +67,6 @@ void foo(void)
OFFSET(THREAD_SP, thread_struct, sp);
OFFSET(THREAD_A3, thread_struct, a3);
OFFSET(THREAD_USP, thread_struct, usp);
OFFSET(THREAD_FRAME, thread_struct, frame);
#ifdef CONFIG_FPU
OFFSET(THREAD_FPU_FLAGS, thread_struct, fpu_flags);
OFFSET(THREAD_FPU_STATE, thread_struct, fpu_state);