lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86, mce: use atomic_inc_return() instead of add by 1

Browse Source 
Use atomic_inc_return() instead of atomic_add_return() by 1.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Borislav Petkov
2009-06-20 23:28:22 -07:00
committed by H. Peter Anvin
parent e487683990
commit a95436e44a
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/kernel/cpu/mcheck/mce.c
View File

@ -242,7 +242,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
/* /*
* Make sure only one CPU runs in machine check panic * Make sure only one CPU runs in machine check panic
*/ */
if (atomic_add_return(1, &mce_paniced) > 1) if (atomic_inc_return(&mce_paniced) > 1)
wait_for_panic(); wait_for_panic();
barrier(); barrier();
@ -705,7 +705,7 @@ static int mce_start(int *no_way_out)
* global_nwo should be updated before mce_callin * global_nwo should be updated before mce_callin
*/ */
smp_wmb(); smp_wmb();
order = atomic_add_return(1, &mce_callin); order = atomic_inc_return(&mce_callin);
/* /*
* Wait for everyone. * Wait for everyone.