[PATCH] improve precision of process accounting.

The unit of the cputime accouting values that are stored per process is
currently a microsecond. The CPU timer has a maximum granularity of
2**-12 microseconds. There is no benefit in storing the per process values
in the lesser precision and there is the disadvantage that the backend
has to do the rounding to microseconds. The better solution is to use
the maximum granularity of the CPU timer as cputime unit.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 20 insertions, 20 deletions

diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 0bc51d52a89..a547817cf1a 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -67,11 +67,11 @@
 #define __LC_SYNC_ENTER_TIMER           0x248
 #define __LC_ASYNC_ENTER_TIMER          0x250
 #define __LC_EXIT_TIMER                 0x258
-#define __LC_LAST_UPDATE_TIMER          0x260
-#define __LC_USER_TIMER                 0x268
-#define __LC_SYSTEM_TIMER               0x270
-#define __LC_LAST_UPDATE_CLOCK          0x278
-#define __LC_STEAL_CLOCK                0x280
+#define __LC_USER_TIMER                 0x260
+#define __LC_SYSTEM_TIMER               0x268
+#define __LC_STEAL_TIMER                0x270
+#define __LC_LAST_UPDATE_TIMER          0x278
+#define __LC_LAST_UPDATE_CLOCK          0x280
 #define __LC_RETURN_MCCK_PSW            0x288
 #define __LC_KERNEL_STACK               0xC40
 #define __LC_THREAD_INFO                0xC44
@@ -89,11 +89,11 @@
 #define __LC_SYNC_ENTER_TIMER           0x250
 #define __LC_ASYNC_ENTER_TIMER          0x258
 #define __LC_EXIT_TIMER                 0x260
-#define __LC_LAST_UPDATE_TIMER          0x268
-#define __LC_USER_TIMER                 0x270
-#define __LC_SYSTEM_TIMER               0x278
-#define __LC_LAST_UPDATE_CLOCK          0x280
-#define __LC_STEAL_CLOCK                0x288
+#define __LC_USER_TIMER                 0x268
+#define __LC_SYSTEM_TIMER               0x270
+#define __LC_STEAL_TIMER                0x278
+#define __LC_LAST_UPDATE_TIMER          0x280
+#define __LC_LAST_UPDATE_CLOCK          0x288
 #define __LC_RETURN_MCCK_PSW            0x290
 #define __LC_KERNEL_STACK               0xD40
 #define __LC_THREAD_INFO                0xD48
@@ -252,11 +252,11 @@ struct _lowcore
         __u64        sync_enter_timer;         /* 0x248 */
         __u64        async_enter_timer;        /* 0x250 */
         __u64        exit_timer;               /* 0x258 */
-        __u64        last_update_timer;        /* 0x260 */
-        __u64        user_timer;               /* 0x268 */
-        __u64        system_timer;             /* 0x270 */
-        __u64        last_update_clock;        /* 0x278 */
-        __u64        steal_clock;              /* 0x280 */
+        __u64        user_timer;               /* 0x260 */
+        __u64        system_timer;             /* 0x268 */
+        __u64        steal_timer;              /* 0x270 */
+        __u64        last_update_timer;        /* 0x278 */
+        __u64        last_update_clock;        /* 0x280 */
         psw_t        return_mcck_psw;          /* 0x288 */
         __u8         pad8[0xc00-0x290];        /* 0x290 */
 
@@ -343,11 +343,11 @@ struct _lowcore
         __u64        sync_enter_timer;         /* 0x250 */
         __u64        async_enter_timer;        /* 0x258 */
         __u64        exit_timer;               /* 0x260 */
-        __u64        last_update_timer;        /* 0x268 */
-        __u64        user_timer;               /* 0x270 */
-        __u64        system_timer;             /* 0x278 */
-        __u64        last_update_clock;        /* 0x280 */
-        __u64        steal_clock;              /* 0x288 */
+        __u64        user_timer;               /* 0x268 */
+        __u64        system_timer;             /* 0x270 */
+        __u64        steal_timer;              /* 0x278 */
+        __u64        last_update_timer;        /* 0x280 */
+        __u64        last_update_clock;        /* 0x288 */
         psw_t        return_mcck_psw;          /* 0x290 */
         __u8         pad8[0xc00-0x2a0];        /* 0x2a0 */
         /* System info area */