diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index e60e386178d134d63caae39f0c272357de86c9b4..12f22492df4ced64e6268449a80598a2ae5676f2 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -40,7 +40,7 @@ __SYSCALL(15, sys_chmod)
__SYSCALL(16, sys_lchown16)
__SYSCALL(17, sys_ni_syscall) /* 17 was sys_break */
__SYSCALL(18, sys_ni_syscall) /* 18 was sys_stat */
-__SYSCALL(19, compat_sys_lseek_wrapper)
+__SYSCALL(19, compat_sys_lseek)
__SYSCALL(20, sys_getpid)
__SYSCALL(21, compat_sys_mount)
__SYSCALL(22, sys_ni_syscall) /* 22 was sys_umount */
@@ -113,8 +113,8 @@ __SYSCALL(88, sys_reboot)
__SYSCALL(89, sys_ni_syscall) /* 89 was sys_readdir */
__SYSCALL(90, sys_ni_syscall) /* 90 was sys_mmap */
__SYSCALL(91, sys_munmap)
-__SYSCALL(92, sys_truncate)
-__SYSCALL(93, sys_ftruncate)
+__SYSCALL(92, compat_sys_truncate)
+__SYSCALL(93, compat_sys_ftruncate)
__SYSCALL(94, sys_fchmod)
__SYSCALL(95, sys_fchown16)
__SYSCALL(96, sys_getpriority)
diff --git a/arch/arm64/kernel/sys32.S b/arch/arm64/kernel/sys32.S
index 6abb05721614ded2064ed3853ce10cb80a151637..9416d045a687e8fa60118a04508c371426177474 100644
--- a/arch/arm64/kernel/sys32.S
+++ b/arch/arm64/kernel/sys32.S
@@ -58,11 +58,6 @@ ENDPROC(compat_sys_fstatfs64_wrapper)
* in registers or that take 32-bit parameters which require sign
* extension.
*/
-compat_sys_lseek_wrapper:
- sxtw x1, w1
- b sys_lseek
-ENDPROC(compat_sys_lseek_wrapper)
-
compat_sys_pread64_wrapper:
orr x3, x4, x5, lsl #32
b sys_pread64
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 402d7469e1a07c70d318b1fb6fd119594757ce6f..af8887f779f1d96577200ca3ad15dd06d4381b57 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -284,8 +284,8 @@ sys_call_table:
PTR compat_sys_old_readdir
PTR sys_mips_mmap /* 4090 */
PTR sys_munmap
- PTR sys_truncate
- PTR sys_ftruncate
+ PTR compat_sys_truncate
+ PTR compat_sys_ftruncate
PTR sys_fchmod
PTR sys_fchown /* 4095 */
PTR sys_getpriority
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index eca69bb8ef5f48dd503dc986a9157444c86abc1e..051c8b90231f14a7bcd7305cb3592c729f326ed5 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -79,16 +79,6 @@ asmlinkage long sys32_sendfile64(u32 out_fd, u32 in_fd,
(loff_t __user *)offset, count);
}
-
-/* lseek() needs a wrapper because 'offset' can be negative, but the top
- * half of the argument has been zeroed by syscall.S.
- */
-
-asmlinkage int sys32_lseek(unsigned int fd, int offset, unsigned int origin)
-{
- return sys_lseek(fd, offset, origin);
-}
-
asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun arg)
{
union semun u;
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index fc9cab1cc2df10453b584697cce9b5ee2b242a2c..884b91b028f01c72ef637efacf7e44c7ede28f60 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -76,7 +76,7 @@
ENTRY_SAME(socket)
/* struct stat is MAYBE identical wide and narrow ?? */
ENTRY_COMP(newstat)
- ENTRY_DIFF(lseek)
+ ENTRY_COMP(lseek)
ENTRY_SAME(getpid) /* 20 */
/* the 'void * data' parameter may need re-packing in wide */
ENTRY_COMP(mount)
@@ -165,8 +165,8 @@
ENTRY_SAME(mmap2)
ENTRY_SAME(mmap) /* 90 */
ENTRY_SAME(munmap)
- ENTRY_SAME(truncate)
- ENTRY_SAME(ftruncate)
+ ENTRY_COMP(truncate)
+ ENTRY_COMP(ftruncate)
ENTRY_SAME(fchmod)
ENTRY_SAME(fchown) /* 95 */
ENTRY_SAME(getpriority)
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index d906f33441c66ccbe6b79171351f091e3747e13b..535b6d8a41ccae912590c0ec14d2fb355f0f4800 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -22,7 +22,7 @@ SYSCALL_SPU(chmod)
SYSCALL_SPU(lchown)
SYSCALL(ni_syscall)
OLDSYS(stat)
-SYSX_SPU(sys_lseek,ppc32_lseek,sys_lseek)
+COMPAT_SYS_SPU(lseek)
SYSCALL_SPU(getpid)
COMPAT_SYS(mount)
SYSX(sys_ni_syscall,sys_oldumount,sys_oldumount)
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index dbc44ba5b078b23bbcc84dbf0fdadf01f76c8b40..d0bafc0cdf069d91c58eb112113497a5ab256f76 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -146,24 +146,6 @@ asmlinkage long compat_sys_sendfile64_wrapper(u32 out_fd, u32 in_fd,
(off_t __user *)offset, count);
}
-off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
-{
- /* sign extend n */
- return sys_lseek(fd, (int)offset, origin);
-}
-
-long compat_sys_truncate(const char __user * path, u32 length)
-{
- /* sign extend length */
- return sys_truncate(path, (int)length);
-}
-
-long compat_sys_ftruncate(int fd, u32 length)
-{
- /* sign extend length */
- return sys_ftruncate(fd, (int)length);
-}
-
unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index c14faf39ae36daafdd1bee5db4f476cc334b78bf..3c98c4dc5aca5be0eae8aa2c98a829d589132913 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -67,12 +67,6 @@ ENTRY(sys32_lchown16_wrapper)
llgfr %r4,%r4 # __kernel_old_uid_emu31_t
jg sys32_lchown16 # branch to system call
-ENTRY(sys32_lseek_wrapper)
- llgfr %r2,%r2 # unsigned int
- lgfr %r3,%r3 # off_t
- llgfr %r4,%r4 # unsigned int
- jg sys_lseek # branch to system call
-
#sys32_getpid_wrapper # void
ENTRY(sys32_mount_wrapper)
@@ -331,16 +325,6 @@ ENTRY(sys32_munmap_wrapper)
llgfr %r3,%r3 # size_t
jg sys_munmap # branch to system call
-ENTRY(sys32_truncate_wrapper)
- llgtr %r2,%r2 # const char *
- lgfr %r3,%r3 # long
- jg sys_truncate # branch to system call
-
-ENTRY(sys32_ftruncate_wrapper)
- llgfr %r2,%r2 # unsigned int
- llgfr %r3,%r3 # unsigned long
- jg sys_ftruncate # branch to system call
-
ENTRY(sys32_fchmod_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # mode_t
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index aaac708aa1102ee242bc20d98ac6e80a243766c7..630b935d128465fc9c2eacc76364c6e1398562f6 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -27,7 +27,7 @@ SYSCALL(sys_chmod,sys_chmod,sys32_chmod_wrapper) /* 15 */
SYSCALL(sys_lchown16,sys_ni_syscall,sys32_lchown16_wrapper) /* old lchown16 syscall*/
NI_SYSCALL /* old break syscall holder */
NI_SYSCALL /* old stat syscall holder */
-SYSCALL(sys_lseek,sys_lseek,sys32_lseek_wrapper)
+SYSCALL(sys_lseek,sys_lseek,compat_sys_lseek)
SYSCALL(sys_getpid,sys_getpid,sys_getpid) /* 20 */
SYSCALL(sys_mount,sys_mount,sys32_mount_wrapper)
SYSCALL(sys_oldumount,sys_oldumount,sys32_oldumount_wrapper)
@@ -100,8 +100,8 @@ SYSCALL(sys_reboot,sys_reboot,sys32_reboot_wrapper)
SYSCALL(sys_ni_syscall,sys_ni_syscall,old32_readdir_wrapper) /* old readdir syscall */
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)
+SYSCALL(sys_truncate,sys_truncate,compat_sys_truncate)
+SYSCALL(sys_ftruncate,sys_ftruncate,compat_sys_ftruncate)
SYSCALL(sys_fchmod,sys_fchmod,sys32_fchmod_wrapper)
SYSCALL(sys_fchown16,sys_ni_syscall,sys32_fchown16_wrapper) /* 95 old fchown16 syscall*/
SYSCALL(sys_getpriority,sys_getpriority,sys32_getpriority_wrapper)
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index cd5dc4d411d1fb90d4b51251f42fb5ea716c0508..b524f91dd0e51ad4a09119759c403843b9a7e3f9 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -726,7 +726,7 @@ static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs
* want to handle. Thus you cannot kill init even with a SIGKILL even by
* mistake.
*/
-void do_signal32(sigset_t *oldset, struct pt_regs * regs)
+void do_signal32(struct pt_regs * regs)
{
struct ksignal ksig;
unsigned long orig_i0 = 0;
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 260ddcd412bf45b8f37c33be3ef3720c17aa03a2..088134834dab4fd0da1293c8a3b20cb0c7a9813d 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -21,7 +21,7 @@ sys_call_table32:
/*0*/ .word sys_restart_syscall, sparc_exit, sys_fork, sys_read, sys_write
/*5*/ .word compat_sys_open, sys_close, compat_sys_wait4, sys_creat, sys_link
/*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys_mknod
-/*15*/ .word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, sys_lseek
+/*15*/ .word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, compat_sys_lseek
/*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
/*25*/ .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, compat_sys_sigaltstack, sys_pause
/*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys_access, sys_nice
@@ -43,8 +43,8 @@ sys_call_table32:
/*110*/ .word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall
.word sys_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd
/*120*/ .word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod
- .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys_truncate
-/*130*/ .word sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall
+ .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, compat_sys_truncate
+/*130*/ .word compat_sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall
.word sys_nis_syscall, sys_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64
/*140*/ .word sys_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit
.word compat_sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 592f5a9a9c0ee9d1cc3fbdfff8e210fa46862360..ad7a20cbc69932cdc97e2c334fffd418000f2ffd 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -218,11 +218,6 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd,
* Some system calls that need sign extended arguments. This could be
* done by a generic wrapper.
*/
-long sys32_lseek(unsigned int fd, int offset, unsigned int whence)
-{
- return sys_lseek(fd, offset, whence);
-}
-
long sys32_kill(int pid, int sig)
{
return sys_kill(pid, sig);
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 0218d917f50906958e5b0b27d40f6fafb892979c..8459efc39686681e20c5cca85e86445b11b75b7d 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -43,7 +43,6 @@ asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32);
asmlinkage long sys32_personality(unsigned long);
asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32);
-long sys32_lseek(unsigned int, int, unsigned int);
long sys32_kill(int, int);
long sys32_fadvise64_64(int, __u32, __u32, __u32, __u32, int);
long sys32_vm86_warning(void);
diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl
index f2fe78ff22cca3a36c1ae483a95cdc69a272eed5..e6d55f0064dfd75c9c46f1d44a0b1a1ab1d1a8ca 100644
--- a/arch/x86/syscalls/syscall_32.tbl
+++ b/arch/x86/syscalls/syscall_32.tbl
@@ -25,7 +25,7 @@
16 i386 lchown sys_lchown16
17 i386 break
18 i386 oldstat sys_stat
-19 i386 lseek sys_lseek sys32_lseek
+19 i386 lseek sys_lseek compat_sys_lseek
20 i386 getpid sys_getpid
21 i386 mount sys_mount compat_sys_mount
22 i386 umount sys_oldumount
@@ -98,8 +98,8 @@
89 i386 readdir sys_old_readdir compat_sys_old_readdir
90 i386 mmap sys_old_mmap sys32_mmap
91 i386 munmap sys_munmap
-92 i386 truncate sys_truncate
-93 i386 ftruncate sys_ftruncate
+92 i386 truncate sys_truncate compat_sys_truncate
+93 i386 ftruncate sys_ftruncate compat_sys_ftruncate
94 i386 fchmod sys_fchmod
95 i386 fchown sys_fchown16
96 i386 getpriority sys_getpriority
diff --git a/fs/open.c b/fs/open.c
index 62f907e3bc36aab08513270e6e9d636da96b9664..e3441f58d2e10c4ce2fb8ba1872be57189db6b02 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -30,6 +30,7 @@
#include <linux/fs_struct.h>
#include <linux/ima.h>
#include <linux/dnotify.h>
+#include <linux/compat.h>
#include "internal.h"
@@ -140,6 +141,13 @@ SYSCALL_DEFINE2(truncate, const char __user *, path, long, length)
return do_sys_truncate(path, length);
}
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE2(truncate, const char __user *, path, compat_off_t, length)
+{
+ return do_sys_truncate(path, length);
+}
+#endif
+
static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
{
struct inode *inode;
@@ -195,6 +203,13 @@ SYSCALL_DEFINE2(ftruncate, unsigned int, fd, unsigned long, length)
return ret;
}
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE2(ftruncate, unsigned int, fd, compat_ulong_t, length)
+{
+ return do_sys_ftruncate(fd, length, 1);
+}
+#endif
+
/* LFS versions of truncate are only needed on 32 bit machines */
#if BITS_PER_LONG == 32
SYSCALL_DEFINE(truncate64)(const char __user * path, loff_t length)
diff --git a/fs/read_write.c b/fs/read_write.c
index 3ae6dbe828bf9d1e3573e6e99730b681564c195d..a698eff457fb6e510c0543c9b762cc8c8d702f23 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -15,6 +15,7 @@
#include <linux/syscalls.h>
#include <linux/pagemap.h>
#include <linux/splice.h>
+#include <linux/compat.h>
#include "read_write.h"
#include <asm/uaccess.h>
@@ -247,6 +248,13 @@ SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, whence)
return retval;
}
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE3(lseek, unsigned int, fd, compat_off_t, offset, unsigned int, whence)
+{
+ return sys_lseek(fd, offset, whence);
+}
+#endif
+
#ifdef __ARCH_WANT_SYS_LLSEEK
SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high,
unsigned long, offset_low, loff_t __user *, result,
@@ -278,7 +286,6 @@ SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high,
}
#endif
-
/*
* rw_verify_area doesn't like huge counts. We limit
* them to something that fits in "int" so that others
diff --git a/fs/timerfd.c b/fs/timerfd.c
index 0e606b12a59df966b5509e87016d6782034ee473..32b644f0369020a1c11e1fc7378bae581e4185c7 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -383,10 +383,10 @@ SYSCALL_DEFINE2(timerfd_gettime, int, ufd, struct itimerspec __user *, otmr)
return copy_to_user(otmr, &kotmr, sizeof(kotmr)) ? -EFAULT: 0;
}
-#ifdef COMPAT
+#ifdef CONFIG_COMPAT
COMPAT_SYSCALL_DEFINE4(timerfd_settime, int, ufd, int, flags,
- const struct itimerspec __user *, utmr,
- struct itimerspec __user *, otmr)
+ const struct compat_itimerspec __user *, utmr,
+ struct compat_itimerspec __user *, otmr)
{
struct itimerspec new, old;
int ret;
@@ -402,12 +402,12 @@ COMPAT_SYSCALL_DEFINE4(timerfd_settime, int, ufd, int, flags,
}
COMPAT_SYSCALL_DEFINE2(timerfd_gettime, int, ufd,
- struct itimerspec __user *, otmr)
+ struct compat_itimerspec __user *, otmr)
{
struct itimerspec kotmr;
int ret = do_timerfd_gettime(ufd, &kotmr);
if (ret)
return ret;
- return put_compat_itimerspec(otmr, &t) ? -EFAULT: 0;
+ return put_compat_itimerspec(otmr, &kotmr) ? -EFAULT: 0;
}
#endif
diff --git a/include/linux/compat.h b/include/linux/compat.h
index de095b0462a757f8ae21d431135d96b82a3ae564..76a87fb57ac258c4f004cee14737d8570da048f0 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -359,6 +359,7 @@ asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
const struct compat_iovec __user *vec,
unsigned long vlen, u32 pos_low, u32 pos_high);
+asmlinkage long comat_sys_lseek(unsigned int, compat_off_t, unsigned int);
asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
const compat_uptr_t __user *envp);
@@ -535,6 +536,8 @@ asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
struct file_handle __user *handle,
int flags);
+asmlinkage long compat_sys_truncate(const char __user *, compat_off_t);
+asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t);
asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp,
compat_ulong_t __user *exp,