diff options
| -rw-r--r-- | arch/um/include/sysdep-i386/kernel-offsets.h | 2 | ||||
| -rw-r--r-- | arch/um/include/sysdep-x86_64/kernel-offsets.h | 2 | ||||
| -rw-r--r-- | arch/um/os-Linux/process.c | 4 |
3 files changed, 6 insertions, 2 deletions
diff --git a/arch/um/include/sysdep-i386/kernel-offsets.h b/arch/um/include/sysdep-i386/kernel-offsets.h index 82f96c574144..2c13de321f2f 100644 --- a/arch/um/include/sysdep-i386/kernel-offsets.h +++ b/arch/um/include/sysdep-i386/kernel-offsets.h @@ -1,6 +1,7 @@ #include <linux/stddef.h> #include <linux/sched.h> #include <linux/elf.h> +#include <asm/mman.h> #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -16,6 +17,7 @@ void foo(void) { OFFSET(HOST_TASK_DEBUGREGS, task_struct, thread.arch.debugregs); + DEFINE(KERNEL_MADV_REMOVE, MADV_REMOVE); #ifdef CONFIG_MODE_TT OFFSET(HOST_TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid); #endif diff --git a/arch/um/include/sysdep-x86_64/kernel-offsets.h b/arch/um/include/sysdep-x86_64/kernel-offsets.h index 5ce93abd0b54..939cc475757a 100644 --- a/arch/um/include/sysdep-x86_64/kernel-offsets.h +++ b/arch/um/include/sysdep-x86_64/kernel-offsets.h @@ -4,6 +4,7 @@ #include <linux/time.h> #include <linux/elf.h> #include <asm/page.h> +#include <asm/mman.h> #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -18,6 +19,7 @@ void foo(void) { + DEFINE(KERNEL_MADV_REMOVE, MADV_REMOVE); #ifdef CONFIG_MODE_TT OFFSET(HOST_TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid); #endif diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c index 8176b0b52047..2064e8400d94 100644 --- a/arch/um/os-Linux/process.c +++ b/arch/um/os-Linux/process.c @@ -190,7 +190,7 @@ int os_unmap_memory(void *addr, int len) } #ifndef MADV_REMOVE -#define MADV_REMOVE 0x5 /* remove these pages & resources */ +#define MADV_REMOVE KERNEL_MADV_REMOVE #endif int os_drop_memory(void *addr, int length) @@ -216,7 +216,7 @@ int can_drop_memory(void) } addr = mmap64(NULL, UM_KERN_PAGE_SIZE, PROT_READ | PROT_WRITE, - MAP_PRIVATE, fd, 0); + MAP_SHARED, fd, 0); if(addr == MAP_FAILED){ printk("Mapping test memory file failed, err = %d\n", -errno); return 0; |