diff options
Diffstat (limited to 'arch/x86/um/vdso')
| -rw-r--r-- | arch/x86/um/vdso/Makefile | 7 | ||||
| -rw-r--r-- | arch/x86/um/vdso/um_vdso.c | 30 | ||||
| -rw-r--r-- | arch/x86/um/vdso/vdso.lds.S | 2 | ||||
| -rw-r--r-- | arch/x86/um/vdso/vma.c | 12 |
4 files changed, 6 insertions, 45 deletions
diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile index 7478d11dacb7..8a7c8b37cb6e 100644 --- a/arch/x86/um/vdso/Makefile +++ b/arch/x86/um/vdso/Makefile @@ -3,16 +3,13 @@ # Building vDSO images for x86. # -VDSO64-y := y - -vdso-install-$(VDSO64-y) += vdso.so - +vdso-install-y += vdso.so # files to link into the vdso vobjs-y := vdso-note.o um_vdso.o # files to link into kernel -obj-$(VDSO64-y) += vdso.o vma.o +obj-y += vdso.o vma.o vobjs := $(foreach F,$(vobjs-y),$(obj)/$F) diff --git a/arch/x86/um/vdso/um_vdso.c b/arch/x86/um/vdso/um_vdso.c index cbae2584124f..ca1468865b14 100644 --- a/arch/x86/um/vdso/um_vdso.c +++ b/arch/x86/um/vdso/um_vdso.c @@ -9,17 +9,11 @@ /* Disable profiling for userspace code */ #define DISABLE_BRANCH_PROFILING +#include <vdso/gettime.h> #include <linux/time.h> -#include <linux/getcpu.h> #include <asm/unistd.h> -/* workaround for -Wmissing-prototypes warnings */ -int __vdso_clock_gettime(clockid_t clock, struct __kernel_old_timespec *ts); -int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz); -__kernel_old_time_t __vdso_time(__kernel_old_time_t *t); -long __vdso_getcpu(unsigned int *cpu, unsigned int *node, struct getcpu_cache *unused); - -int __vdso_clock_gettime(clockid_t clock, struct __kernel_old_timespec *ts) +int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts) { long ret; @@ -30,7 +24,7 @@ int __vdso_clock_gettime(clockid_t clock, struct __kernel_old_timespec *ts) return ret; } -int clock_gettime(clockid_t, struct __kernel_old_timespec *) +int clock_gettime(clockid_t, struct __kernel_timespec *) __attribute__((weak, alias("__vdso_clock_gettime"))); int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz) @@ -58,21 +52,3 @@ __kernel_old_time_t __vdso_time(__kernel_old_time_t *t) return secs; } __kernel_old_time_t time(__kernel_old_time_t *t) __attribute__((weak, alias("__vdso_time"))); - -long -__vdso_getcpu(unsigned int *cpu, unsigned int *node, struct getcpu_cache *unused) -{ - /* - * UML does not support SMP, we can cheat here. :) - */ - - if (cpu) - *cpu = 0; - if (node) - *node = 0; - - return 0; -} - -long getcpu(unsigned int *cpu, unsigned int *node, struct getcpu_cache *tcache) - __attribute__((weak, alias("__vdso_getcpu"))); diff --git a/arch/x86/um/vdso/vdso.lds.S b/arch/x86/um/vdso/vdso.lds.S index 73c508587a98..401600effc0a 100644 --- a/arch/x86/um/vdso/vdso.lds.S +++ b/arch/x86/um/vdso/vdso.lds.S @@ -22,8 +22,6 @@ VERSION { __vdso_clock_gettime; gettimeofday; __vdso_gettimeofday; - getcpu; - __vdso_getcpu; time; __vdso_time; local: *; diff --git a/arch/x86/um/vdso/vma.c b/arch/x86/um/vdso/vma.c index dc8dfb2abd80..51a2b9f2eca9 100644 --- a/arch/x86/um/vdso/vma.c +++ b/arch/x86/um/vdso/vma.c @@ -10,7 +10,6 @@ #include <asm/elf.h> #include <linux/init.h> -static unsigned int __read_mostly vdso_enabled = 1; unsigned long um_vdso_addr; static struct page *um_vdso; @@ -25,17 +24,11 @@ static int __init init_vdso(void) um_vdso = alloc_page(GFP_KERNEL); if (!um_vdso) - goto oom; + panic("Cannot allocate vdso\n"); copy_page(page_address(um_vdso), vdso_start); return 0; - -oom: - printk(KERN_ERR "Cannot allocate vdso\n"); - vdso_enabled = 0; - - return -ENOMEM; } subsys_initcall(init_vdso); @@ -48,9 +41,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) .pages = &um_vdso, }; - if (!vdso_enabled) - return 0; - if (mmap_write_lock_killable(mm)) return -EINTR; |