diff options
31 files changed, 79 insertions, 258 deletions
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index e18500d305ba..e6eeb2d29953 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -443,6 +443,7 @@ #define __ARCH_WANT_SYS_SIGPROCMASK #define __ARCH_WANT_SYS_RT_SIGACTION #define __ARCH_WANT_SYS_RT_SIGSUSPEND +#define __ARCH_WANT_SYS_OLD_MMAP #define __ARCH_WANT_SYS_OLD_SELECT #if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT) diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 7671e9a75449..37ae301cc47c 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -99,7 +99,7 @@ CALL(sys_swapon) CALL(sys_reboot) CALL(OBSOLETE(sys_old_readdir)) /* used by libc4 */ -/* 90 */ CALL(OBSOLETE(old_mmap)) /* used by libc4 */ +/* 90 */ CALL(OBSOLETE(sys_old_mmap)) /* used by libc4 */ CALL(sys_munmap) CALL(sys_truncate) CALL(sys_ftruncate) diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index e59cddedcbba..a2e0e6f2ea7f 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -28,32 +28,6 @@ #include <linux/ipc.h> #include <linux/uaccess.h> -struct mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -asmlinkage int old_mmap(struct mmap_arg_struct __user *arg) -{ - int error = -EFAULT; - struct mmap_arg_struct a; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - error = -EINVAL; - if (a.offset & ~PAGE_MASK) - goto out; - - error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); -out: - return error; -} - #if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT) /* * sys_ipc() is the de-multiplexer for the SysV IPC calls.. diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S index c52bef39e250..0d6420d087fd 100644 --- a/arch/cris/arch-v10/kernel/entry.S +++ b/arch/cris/arch-v10/kernel/entry.S @@ -692,7 +692,7 @@ sys_call_table: .long sys_swapon .long sys_reboot .long sys_old_readdir - .long old_mmap /* 90 */ + .long sys_old_mmap /* 90 */ .long sys_munmap .long sys_truncate .long sys_ftruncate diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S index 435b9671bd4b..1f39861eac8c 100644 --- a/arch/cris/arch-v32/kernel/entry.S +++ b/arch/cris/arch-v32/kernel/entry.S @@ -615,7 +615,7 @@ sys_call_table: .long sys_swapon .long sys_reboot .long sys_old_readdir - .long old_mmap /* 90 */ + .long sys_old_mmap /* 90 */ .long sys_munmap .long sys_truncate .long sys_ftruncate diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h index c17079388bb9..8cffd22623fd 100644 --- a/arch/cris/include/asm/unistd.h +++ b/arch/cris/include/asm/unistd.h @@ -364,6 +364,7 @@ #define __ARCH_WANT_SYS_LLSEEK #define __ARCH_WANT_SYS_NICE #define __ARCH_WANT_SYS_OLD_GETRLIMIT +#define __ARCH_WANT_SYS_OLD_MMAP #define __ARCH_WANT_SYS_OLDUMOUNT #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_SIGPROCMASK diff --git a/arch/cris/kernel/sys_cris.c b/arch/cris/kernel/sys_cris.c index c2bbb1ac98a9..22f9d6cd947f 100644 --- a/arch/cris/kernel/sys_cris.c +++ b/arch/cris/kernel/sys_cris.c @@ -26,24 +26,6 @@ #include <asm/uaccess.h> #include <asm/segment.h> -asmlinkage unsigned long old_mmap(unsigned long __user *args) -{ - unsigned long buffer[6]; - int err = -EFAULT; - - if (copy_from_user(&buffer, args, sizeof(buffer))) - goto out; - - err = -EINVAL; - if (buffer[5] & ~PAGE_MASK) /* verify that offset is on page boundary */ - goto out; - - err = sys_mmap_pgoff(buffer[0], buffer[1], buffer[2], buffer[3], - buffer[4], buffer[5] >> PAGE_SHIFT); -out: - return err; -} - asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h index 3bea0b3eb24f..54dab4726954 100644 --- a/arch/h8300/include/asm/unistd.h +++ b/arch/h8300/include/asm/unistd.h @@ -348,6 +348,7 @@ #define __ARCH_WANT_SYS_LLSEEK #define __ARCH_WANT_SYS_NICE #define __ARCH_WANT_SYS_OLD_GETRLIMIT +#define __ARCH_WANT_SYS_OLD_MMAP #define __ARCH_WANT_SYS_OLD_SELECT #define __ARCH_WANT_SYS_OLDUMOUNT #define __ARCH_WANT_SYS_SIGPENDING diff --git a/arch/h8300/kernel/sys_h8300.c b/arch/h8300/kernel/sys_h8300.c index e9a3ecf90c9c..1f13fd6e5309 100644 --- a/arch/h8300/kernel/sys_h8300.c +++ b/arch/h8300/kernel/sys_h8300.c @@ -27,40 +27,6 @@ #include <asm/unistd.h> /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to - * handle more than 4 system call parameters, so these system calls - * used a memory block for parameter passing.. - */ - -struct mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -asmlinkage int old_mmap(struct mmap_arg_struct *arg) -{ - struct mmap_arg_struct a; - int error = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - error = -EINVAL; - if (a.offset & ~PAGE_MASK) - goto out; - - error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, - a.offset >> PAGE_SHIFT); -out: - return error; -} - -/* * sys_ipc() is the de-multiplexer for the SysV IPC calls.. * * This is really horribly ugly. diff --git a/arch/h8300/kernel/syscalls.S b/arch/h8300/kernel/syscalls.S index fe5ae20e60c5..faefaff7d43d 100644 --- a/arch/h8300/kernel/syscalls.S +++ b/arch/h8300/kernel/syscalls.S @@ -104,7 +104,7 @@ SYMBOL_NAME_LABEL(sys_call_table) .long SYMBOL_NAME(sys_swapon) .long SYMBOL_NAME(sys_reboot) .long SYMBOL_NAME(sys_old_readdir) - .long SYMBOL_NAME(old_mmap) /* 90 */ + .long SYMBOL_NAME(sys_old_mmap) /* 90 */ .long SYMBOL_NAME(sys_munmap) .long SYMBOL_NAME(sys_truncate) .long SYMBOL_NAME(sys_ftruncate) diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index 1582c2db1c86..d801154310ea 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -363,6 +363,7 @@ #define __ARCH_WANT_SYS_LLSEEK #define __ARCH_WANT_SYS_NICE #define __ARCH_WANT_SYS_OLD_GETRLIMIT +#define __ARCH_WANT_SYS_OLD_MMAP #define __ARCH_WANT_SYS_OLD_SELECT #define __ARCH_WANT_SYS_OLDUMOUNT #define __ARCH_WANT_SYS_SIGPENDING diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 09b1f09be3a6..2391bdff0996 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -518,7 +518,7 @@ sys_call_table: .long sys_swapon .long sys_reboot .long sys_old_readdir - .long old_mmap /* 90 */ + .long sys_old_mmap /* 90 */ .long sys_munmap .long sys_truncate .long sys_ftruncate diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c index 03b58dd86c7a..7b309e7b6cef 100644 --- a/arch/m68k/kernel/sys_m68k.c +++ b/arch/m68k/kernel/sys_m68k.c @@ -47,40 +47,6 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, } /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to - * handle more than 4 system call parameters, so these system calls - * used a memory block for parameter passing.. - */ - -struct mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -asmlinkage int old_mmap(struct mmap_arg_struct __user *arg) -{ - struct mmap_arg_struct a; - int error = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - error = -EINVAL; - if (a.offset & ~PAGE_MASK) - goto out; - - error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, - a.offset >> PAGE_SHIFT); -out: - return error; -} - -/* * sys_ipc() is the de-multiplexer for the SysV IPC calls.. * * This is really horribly ugly. diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c index e0d3f13e77a8..3e371cc9fd91 100644 --- a/arch/m68knommu/kernel/sys_m68k.c +++ b/arch/m68knommu/kernel/sys_m68k.c @@ -28,40 +28,6 @@ #include <asm/unistd.h> /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to - * handle more than 4 system call parameters, so these system calls - * used a memory block for parameter passing.. - */ - -struct mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -asmlinkage int old_mmap(struct mmap_arg_struct *arg) -{ - struct mmap_arg_struct a; - int error = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - error = -EINVAL; - if (a.offset & ~PAGE_MASK) - goto out; - - error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, - a.offset >> PAGE_SHIFT); -out: - return error; -} - -/* * sys_ipc() is the de-multiplexer for the SysV IPC calls.. * * This is really horribly ugly. diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S index 405738351700..b30b3eb197a5 100644 --- a/arch/m68knommu/kernel/syscalltable.S +++ b/arch/m68knommu/kernel/syscalltable.S @@ -108,7 +108,7 @@ ENTRY(sys_call_table) .long sys_ni_syscall /* sys_swapon */ .long sys_reboot .long sys_old_readdir - .long old_mmap /* 90 */ + .long sys_old_mmap /* 90 */ .long sys_munmap .long sys_truncate .long sys_ftruncate diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 6e9f049fa823..5f0075150a65 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -392,6 +392,7 @@ #define __ARCH_WANT_SYS_LLSEEK #define __ARCH_WANT_SYS_NICE #define __ARCH_WANT_SYS_OLD_GETRLIMIT +#define __ARCH_WANT_SYS_OLD_MMAP #define __ARCH_WANT_SYS_OLDUMOUNT #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_SIGPROCMASK diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h index 9905a0cacf93..5de54d2af0b2 100644 --- a/arch/s390/kernel/entry.h +++ b/arch/s390/kernel/entry.h @@ -25,12 +25,11 @@ void __init startup_init(void); void die(const char * str, struct pt_regs * regs, long err); struct new_utsname; -struct mmap_arg_struct; +struct s390_mmap_arg_struct; struct fadvise64_64_args; struct old_sigaction; -long sys_mmap2(struct mmap_arg_struct __user *arg); -long sys_s390_old_mmap(struct mmap_arg_struct __user *arg); +long sys_mmap2(struct s390_mmap_arg_struct __user *arg); long sys_ipc(uint call, int first, unsigned long second, unsigned long third, void __user *ptr); long sys_s390_newuname(struct new_utsname __user *name); diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c index 86a74c9c9e63..b2563509b5a9 100644 --- a/arch/s390/kernel/sys_s390.c +++ b/arch/s390/kernel/sys_s390.c @@ -33,13 +33,12 @@ #include "entry.h" /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux for S/390 isn't able to handle more than 5 - * system call parameters, so these system calls used a memory - * block for parameter passing.. + * Perform the mmap() system call. Linux for S/390 isn't able to handle more + * than 5 system call parameters, so this system call uses a memory block + * for parameter passing. */ -struct mmap_arg_struct { +struct s390_mmap_arg_struct { unsigned long addr; unsigned long len; unsigned long prot; @@ -48,9 +47,9 @@ struct mmap_arg_struct { unsigned long offset; }; -SYSCALL_DEFINE1(mmap2, struct mmap_arg_struct __user *, arg) +SYSCALL_DEFINE1(mmap2, struct s390_mmap_arg_struct __user *, arg) { - struct mmap_arg_struct a; + struct s390_mmap_arg_struct a; int error = -EFAULT; if (copy_from_user(&a, arg, sizeof(a))) @@ -60,23 +59,6 @@ out: return error; } -SYSCALL_DEFINE1(s390_old_mmap, struct mmap_arg_struct __user *, arg) -{ - struct mmap_arg_struct a; - long error = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - error = -EINVAL; - if (a.offset & ~PAGE_MASK) - goto out; - - error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); -out: - return error; -} - /* * sys_ipc() is the de-multiplexer for the SysV IPC calls.. * diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 30eca070d426..2a24766567af 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -98,7 +98,7 @@ SYSCALL(sys_uselib,sys_uselib,sys32_uselib_wrapper) SYSCALL(sys_swapon,sys_swapon,sys32_swapon_wrapper) SYSCALL(sys_reboot,sys_reboot,sys32_reboot_wrapper) SYSCALL(sys_ni_syscall,sys_ni_syscall,old32_readdir_wrapper) /* old readdir syscall */ -SYSCALL(sys_s390_old_mmap,sys_s390_old_mmap,old32_mmap_wrapper) /* 90 */ +SYSCALL(sys_old_mmap,sys_old_mmap,old32_mmap_wrapper) /* 90 */ SYSCALL(sys_munmap,sys_munmap,sys32_munmap_wrapper) SYSCALL(sys_truncate,sys_truncate,sys32_truncate_wrapper) SYSCALL(sys_ftruncate,sys_ftruncate,sys32_ftruncate_wrapper) diff --git a/arch/um/sys-i386/shared/sysdep/syscalls.h b/arch/um/sys-i386/shared/sysdep/syscalls.h index e7787679e317..05cb796aecb5 100644 --- a/arch/um/sys-i386/shared/sysdep/syscalls.h +++ b/arch/um/sys-i386/shared/sysdep/syscalls.h @@ -13,8 +13,6 @@ typedef long syscall_handler_t(struct pt_regs); */ extern syscall_handler_t sys_rt_sigaction; -extern syscall_handler_t old_mmap_i386; - extern syscall_handler_t *sys_call_table[]; #define EXECUTE_SYSCALL(syscall, regs) \ diff --git a/arch/um/sys-i386/sys_call_table.S b/arch/um/sys-i386/sys_call_table.S index c6260dd6ebb9..de274071455d 100644 --- a/arch/um/sys-i386/sys_call_table.S +++ b/arch/um/sys-i386/sys_call_table.S @@ -7,7 +7,7 @@ #define sys_vm86old sys_ni_syscall #define sys_vm86 sys_ni_syscall -#define old_mmap old_mmap_i386 +#define old_mmap sys_old_mmap #define ptregs_fork sys_fork #define ptregs_execve sys_execve diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c index 0e49d2a20c17..d0aa8f125ee6 100644 --- a/arch/um/sys-i386/syscalls.c +++ b/arch/um/sys-i386/syscalls.c @@ -12,39 +12,6 @@ #include "asm/unistd.h" /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux/i386 didn't use to be able to handle more than - * 4 system call parameters, so these system calls used a memory - * block for parameter passing.. - */ - -struct mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -extern int old_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long offset); - -long old_mmap_i386(struct mmap_arg_struct __user *arg) -{ - struct mmap_arg_struct a; - int err = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - err = old_mmap(a.addr, a.len, a.prot, a.flags, a.fd, a.offset); - out: - return err; -} - -/* * The prototype on i386 is: * * int clone(int flags, void * child_stack, int * parent_tidptr, struct user_desc * newtls, int * child_tidptr) diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index cb80816e7a16..56c99f46e289 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -143,7 +143,7 @@ asmlinkage long sys32_fstatat(unsigned int dfd, char __user *filename, * block for parameter passing.. */ -struct mmap_arg_struct { +struct mmap_arg_struct32 { unsigned int addr; unsigned int len; unsigned int prot; @@ -152,9 +152,9 @@ struct mmap_arg_struct { unsigned int offset; }; -asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg) +asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg) { - struct mmap_arg_struct a; + struct mmap_arg_struct32 a; if (copy_from_user(&a, arg, sizeof(a))) return -EFAULT; diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h index b26fc750e416..7d348d803669 100644 --- a/arch/x86/include/asm/sys_ia32.h +++ b/arch/x86/include/asm/sys_ia32.h @@ -26,8 +26,8 @@ asmlinkage long sys32_lstat64(char __user *, struct stat64 __user *); asmlinkage long sys32_fstat64(unsigned int, struct stat64 __user *); asmlinkage long sys32_fstatat(unsigned int, char __user *, struct stat64 __user *, int); -struct mmap_arg_struct; -asmlinkage long sys32_mmap(struct mmap_arg_struct __user *); +struct mmap_arg_struct32; +asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *); asmlinkage long sys32_mprotect(unsigned long, size_t, unsigned long); struct sigaction32; diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h index 8406d06c118d..86ab6a0623fd 100644 --- a/arch/x86/include/asm/syscalls.h +++ b/arch/x86/include/asm/syscalls.h @@ -51,11 +51,9 @@ asmlinkage int sys_sigaction(int, const struct old_sigaction __user *, unsigned long sys_sigreturn(struct pt_regs *); /* kernel/sys_i386_32.c */ -struct mmap_arg_struct; struct oldold_utsname; struct old_utsname; -asmlinkage int old_mmap(struct mmap_arg_struct __user *); asmlinkage int sys_ipc(uint, int, int, int, void __user *, long); asmlinkage int sys_uname(struct old_utsname __user *); asmlinkage int sys_olduname(struct oldold_utsname __user *); diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h index 4eb2667b54ae..daa65d9aae95 100644 --- a/arch/x86/include/asm/unistd_32.h +++ b/arch/x86/include/asm/unistd_32.h @@ -366,6 +366,7 @@ #define __ARCH_WANT_SYS_LLSEEK #define __ARCH_WANT_SYS_NICE #define __ARCH_WANT_SYS_OLD_GETRLIMIT +#define __ARCH_WANT_SYS_OLD_MMAP #define __ARCH_WANT_SYS_OLD_SELECT #define __ARCH_WANT_SYS_OLDUMOUNT #define __ARCH_WANT_SYS_SIGPENDING diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c index 345dbd19a2b3..7955e90c8341 100644 --- a/arch/x86/kernel/sys_i386_32.c +++ b/arch/x86/kernel/sys_i386_32.c @@ -25,40 +25,6 @@ #include <asm/syscalls.h> /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux/i386 didn't use to be able to handle more than - * 4 system call parameters, so these system calls used a memory - * block for parameter passing.. - */ - -struct mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -asmlinkage int old_mmap(struct mmap_arg_struct __user *arg) -{ - struct mmap_arg_struct a; - int err = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - err = -EINVAL; - if (a.offset & ~PAGE_MASK) - goto out; - - err = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, - a.fd, a.offset >> PAGE_SHIFT); -out: - return err; -} - -/* * sys_ipc() is the de-multiplexer for the SysV IPC calls.. * * This is really horribly ugly. diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index 4d10abacecdb..8b3729341216 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -89,7 +89,7 @@ ENTRY(sys_call_table) .long sys_swapon .long sys_reboot .long sys_old_readdir - .long old_mmap /* 90 */ + .long sys_old_mmap /* 90 */ .long sys_munmap .long sys_truncate .long sys_ftruncate diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 85a9f21fe11a..b60907e3b0d5 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -23,6 +23,7 @@ struct kexec_segment; struct linux_dirent; struct linux_dirent64; struct list_head; +struct mmap_arg_struct; struct msgbuf; struct msghdr; struct mmsghdr; @@ -838,4 +839,6 @@ asmlinkage long sys_perf_event_open( asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff); +asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); + #endif diff --git a/mm/mmap.c b/mm/mmap.c index f1b4448626bf..75557c639ad4 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1088,6 +1088,30 @@ out: return retval; } +#ifdef __ARCH_WANT_SYS_OLD_MMAP +struct mmap_arg_struct { + unsigned long addr; + unsigned long len; + unsigned long prot; + unsigned long flags; + unsigned long fd; + unsigned long offset; +}; + +SYSCALL_DEFINE1(old_mmap, struct mmap_arg_struct __user *, arg) +{ + struct mmap_arg_struct a; + + if (copy_from_user(&a, arg, sizeof(a))) + return -EFAULT; + if (a.offset & ~PAGE_MASK) + return -EINVAL; + + return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, + a.offset >> PAGE_SHIFT); +} +#endif /* __ARCH_WANT_SYS_OLD_MMAP */ + /* * Some shared mappigns will want the pages marked read-only * to track write events. If so, we'll downgrade vm_page_prot diff --git a/mm/nommu.c b/mm/nommu.c index b9b5cceb1b68..605ace8982a8 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1428,6 +1428,30 @@ out: return retval; } +#ifdef __ARCH_WANT_SYS_OLD_MMAP +struct mmap_arg_struct { + unsigned long addr; + unsigned long len; + unsigned long prot; + unsigned long flags; + unsigned long fd; + unsigned long offset; +}; + +SYSCALL_DEFINE1(old_mmap, struct mmap_arg_struct __user *, arg) +{ + struct mmap_arg_struct a; + + if (copy_from_user(&a, arg, sizeof(a))) + return -EFAULT; + if (a.offset & ~PAGE_MASK) + return -EINVAL; + + return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, + a.offset >> PAGE_SHIFT); +} +#endif /* __ARCH_WANT_SYS_OLD_MMAP */ + /* * split a vma into two pieces at address 'addr', a new vma is allocated either * for the first part or the tail. |
