diff options
Diffstat (limited to 'arch/x86/kernel/tls.c')
| -rw-r--r-- | arch/x86/kernel/tls.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c index 022bcaa3b42..f7fec09e3e3 100644 --- a/arch/x86/kernel/tls.c +++ b/arch/x86/kernel/tls.c @@ -3,10 +3,10 @@ #include <linux/sched.h> #include <linux/user.h> #include <linux/regset.h> +#include <linux/syscalls.h> #include <asm/uaccess.h> #include <asm/desc.h> -#include <asm/system.h> #include <asm/ldt.h> #include <asm/processor.h> #include <asm/proto.h> @@ -89,11 +89,9 @@ int do_set_thread_area(struct task_struct *p, int idx, return 0; } -asmlinkage int sys_set_thread_area(struct user_desc __user *u_info) +SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, u_info) { - int ret = do_set_thread_area(current, -1, u_info, 1); - prevent_tail_call(ret); - return ret; + return do_set_thread_area(current, -1, u_info, 1); } @@ -139,11 +137,9 @@ int do_get_thread_area(struct task_struct *p, int idx, return 0; } -asmlinkage int sys_get_thread_area(struct user_desc __user *u_info) +SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, u_info) { - int ret = do_get_thread_area(current, -1, u_info); - prevent_tail_call(ret); - return ret; + return do_get_thread_area(current, -1, u_info); } int regset_tls_active(struct task_struct *target, @@ -162,7 +158,7 @@ int regset_tls_get(struct task_struct *target, const struct user_regset *regset, { const struct desc_struct *tls; - if (pos > GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) || + if (pos >= GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) || (pos % sizeof(struct user_desc)) != 0 || (count % sizeof(struct user_desc)) != 0) return -EINVAL; @@ -197,7 +193,7 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset, struct user_desc infobuf[GDT_ENTRY_TLS_ENTRIES]; const struct user_desc *info; - if (pos > GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) || + if (pos >= GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) || (pos % sizeof(struct user_desc)) != 0 || (count % sizeof(struct user_desc)) != 0) return -EINVAL; |