tmakin/ack-tegra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc: Remove static branch prediction in 64bit traced syscall path

Browse Source 
Some distros enable auditing by default which forces us through the
syscall trace path. Remove the static branch prediction in our 64bit
syscall handler and let the hardware do the prediction.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Anton Blanchard
2013-01-09 10:47:36 +11:00
committed by Eric Paris
parent cdee3904b4
commit 2540334adc
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/powerpc/kernel/entry_64.S
+1 -1
View File
@@ -149,7 +149,7 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
CURRENT_THREAD_INFO(r11, r1)
ld r10,TI_FLAGS(r11)
andi. r11,r10,_TIF_SYSCALL_T_OR_A
bne- syscall_dotrace
bne syscall_dotrace
.Lsyscall_dotrace_cont:
cmpldi 0,r0,NR_syscalls
bge- syscall_enosys