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| author | Al Viro <viro@zeniv.linux.org.uk> | 2021-09-20 21:32:48 +0000 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2021-12-21 21:30:44 +0100 |
| commit | 577ade59b99e3473b2f1342b1eb9e496eed39b68 (patch) | |
| tree | c7caad9da863acb63602f38ab0c218f7c299c590 /arch/x86/um | |
| parent | 8f5c84f3678e72bbba96b0755135adae66d35c0e (diff) | |
| download | linux-577ade59b99e3473b2f1342b1eb9e496eed39b68.tar.bz2 | |
um: move amd64 variant of mmap(2) to arch/x86/um/syscalls_64.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/x86/um')
| -rw-r--r-- | arch/x86/um/shared/sysdep/syscalls_64.h | 3 | ||||
| -rw-r--r-- | arch/x86/um/sys_call_table_64.c | 3 | ||||
| -rw-r--r-- | arch/x86/um/syscalls_64.c | 10 |
3 files changed, 10 insertions, 6 deletions
diff --git a/arch/x86/um/shared/sysdep/syscalls_64.h b/arch/x86/um/shared/sysdep/syscalls_64.h index 8a7d5e1da98e..48d6cd12f8a5 100644 --- a/arch/x86/um/shared/sysdep/syscalls_64.h +++ b/arch/x86/um/shared/sysdep/syscalls_64.h @@ -23,9 +23,6 @@ extern syscall_handler_t *sys_call_table[]; UPT_SYSCALL_ARG5(®s->regs), \ UPT_SYSCALL_ARG6(®s->regs))) -extern long old_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff); extern syscall_handler_t sys_modify_ldt; extern syscall_handler_t sys_arch_prctl; diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c index 82b695ed23c4..b0b4cfd2308c 100644 --- a/arch/x86/um/sys_call_table_64.c +++ b/arch/x86/um/sys_call_table_64.c @@ -18,9 +18,6 @@ #define sys_iopl sys_ni_syscall #define sys_ioperm sys_ni_syscall -/* On UML we call it this way ("old" means it's not mmap2) */ -#define sys_mmap old_mmap - #define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); #include <asm/syscalls_64.h> diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c index 8249685b4096..e768f54b118c 100644 --- a/arch/x86/um/syscalls_64.c +++ b/arch/x86/um/syscalls_64.c @@ -88,3 +88,13 @@ void arch_switch_to(struct task_struct *to) arch_prctl(to, ARCH_SET_FS, (void __user *) to->thread.arch.fs); } + +SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, + unsigned long, prot, unsigned long, flags, + unsigned long, fd, unsigned long, off) +{ + if (off & ~PAGE_MASK) + return -EINVAL; + + return ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); +} |