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-rw-r--r--arch/arm64/include/asm/unistd32.h2
-rw-r--r--arch/arm64/kernel/sys32.S5
-rw-r--r--arch/parisc/kernel/sys_parisc32.c10
-rw-r--r--arch/parisc/kernel/syscall_table.S2
-rw-r--r--arch/powerpc/include/asm/systbl.h2
-rw-r--r--arch/powerpc/kernel/sys_ppc32.c6
-rw-r--r--arch/s390/kernel/compat_wrapper.S6
-rw-r--r--arch/s390/kernel/syscalls.S2
-rw-r--r--arch/sparc/kernel/sys32.S1
-rw-r--r--arch/sparc/kernel/systbls_64.S2
-rw-r--r--arch/x86/ia32/sys_ia32.c5
-rw-r--r--arch/x86/include/asm/sys_ia32.h1
-rw-r--r--arch/x86/syscalls/syscall_32.tbl2
-rw-r--r--fs/read_write.c9
-rw-r--r--include/linux/compat.h1
15 files changed, 15 insertions, 41 deletions
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index e60e386178d..8153f1a43f0 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 */
diff --git a/arch/arm64/kernel/sys32.S b/arch/arm64/kernel/sys32.S
index 6abb0572161..9416d045a68 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/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index eca69bb8ef5..051c8b90231 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 fc9cab1cc2d..d0efc0aeb61 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)
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index d906f33441c..535b6d8a41c 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 dbc44ba5b07..5677a36f450 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -146,12 +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 */
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index c14faf39ae3..2b1a3a03244 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)
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index aaac708aa11..0e5262f0100 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)
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index 0cfe219646e..be3d65a3c27 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -47,7 +47,6 @@ SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
SIGN1(sys32_select, compat_sys_select, %o0)
SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1)
-SIGN1(sys32_lseek, sys_lseek, %o1)
SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 6eed1945a2c..9ed517c5037 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, sys32_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
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 592f5a9a9c0..ad7a20cbc69 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 0218d917f50..8459efc3968 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 f2fe78ff22c..f51810be1a3 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
diff --git a/fs/read_write.c b/fs/read_write.c
index bb34af31528..e57796cb7b5 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 @@ out_putf:
}
#endif
-
/*
* rw_verify_area doesn't like huge counts. We limit
* them to something that fits in "int" so that others
diff --git a/include/linux/compat.h b/include/linux/compat.h
index de095b0462a..59c72048bf2 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);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-26 20:39:16 +0000