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-rw-r--r--arch/powerpc/kernel/time.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 09e4dea4a85a..09d31dbf43f9 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -265,11 +265,26 @@ void accumulate_stolen_time(void)
265{ 265{
266 u64 sst, ust; 266 u64 sst, ust;
267 267
268 sst = scan_dispatch_log(get_paca()->starttime_user); 268 u8 save_soft_enabled = local_paca->soft_enabled;
269 ust = scan_dispatch_log(get_paca()->starttime); 269 u8 save_hard_enabled = local_paca->hard_enabled;
270 get_paca()->system_time -= sst; 270
271 get_paca()->user_time -= ust; 271 /* We are called early in the exception entry, before
272 get_paca()->stolen_time += ust + sst; 272 * soft/hard_enabled are sync'ed to the expected state
273 * for the exception. We are hard disabled but the PACA
274 * needs to reflect that so various debug stuff doesn't
275 * complain
276 */
277 local_paca->soft_enabled = 0;
278 local_paca->hard_enabled = 0;
279
280 sst = scan_dispatch_log(local_paca->starttime_user);
281 ust = scan_dispatch_log(local_paca->starttime);
282 local_paca->system_time -= sst;
283 local_paca->user_time -= ust;
284 local_paca->stolen_time += ust + sst;
285
286 local_paca->soft_enabled = save_soft_enabled;
287 local_paca->hard_enabled = save_hard_enabled;
273} 288}
274 289
275static inline u64 calculate_stolen_time(u64 stop_tb) 290static inline u64 calculate_stolen_time(u64 stop_tb)