diff options
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/Kbuild | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/cputime.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/page.h | 3 |
3 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index 0633dc6..f313f9c 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -1,3 +1,4 @@ generic-y += clkdev.h +generic-y += trace_clock.h diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index 023d5ae..d2ff4137 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -14,6 +14,7 @@ #define __ARCH_HAS_VTIME_ACCOUNT +#define __ARCH_HAS_VTIME_TASK_SWITCH /* We want to use full resolution of the CPU timer: 2**-12 micro-seconds. */ diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 6d53670..39faa4a 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -158,6 +158,9 @@ static inline int page_reset_referenced(unsigned long addr) * race against modification of the referenced bit. This function * should therefore only be called if it is not mapped in any * address space. + * + * Note that the bit gets set whenever page content is changed. That means + * also when the page is modified by DMA or from inside the kernel. */ #define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY static inline int page_test_and_clear_dirty(unsigned long pfn, int mapped) |
