[PATCH] compat_sys_[f]statfs - s390x part

Here is the s390x part. Others will go through the respective maintainers.

arch/s390x/kernel/entry.S

@@ -490,8 +490,8 @@ sys_call_table:
         .long  SYSCALL(sys_getpriority,sys32_getpriority_wrapper)
         .long  SYSCALL(sys_setpriority,sys32_setpriority_wrapper)
         .long  SYSCALL(sys_ni_syscall,sys_ni_syscall) /* old profil syscall */
-        .long  SYSCALL(sys_statfs,sys32_statfs_wrapper)
-        .long  SYSCALL(sys_fstatfs,sys32_fstatfs_wrapper)   /* 100 */
+        .long  SYSCALL(sys_statfs,compat_sys_statfs_wrapper)
+        .long  SYSCALL(sys_fstatfs,compat_sys_fstatfs_wrapper)   /* 100 */
         .long  SYSCALL(sys_ni_syscall,sys_ni_syscall)
         .long  SYSCALL(sys_socketcall,sys32_socketcall_wrapper)
         .long  SYSCALL(sys_syslog,sys32_syslog_wrapper)

arch/s390x/kernel/linux32.c

@@ -884,61 +884,6 @@ asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long a
 	return sys32_fcntl(fd, cmd, arg);
 }
 
-static inline int put_statfs (struct statfs32 *ubuf, struct statfs *kbuf)
-{
-	int err;
-	
-	err = put_user (kbuf->f_type, &ubuf->f_type);
-	err |= __put_user (kbuf->f_bsize, &ubuf->f_bsize);
-	err |= __put_user (kbuf->f_blocks, &ubuf->f_blocks);
-	err |= __put_user (kbuf->f_bfree, &ubuf->f_bfree);
-	err |= __put_user (kbuf->f_bavail, &ubuf->f_bavail);
-	err |= __put_user (kbuf->f_files, &ubuf->f_files);
-	err |= __put_user (kbuf->f_ffree, &ubuf->f_ffree);
-	err |= __put_user (kbuf->f_namelen, &ubuf->f_namelen);
-	err |= __put_user (kbuf->f_fsid.val[0], &ubuf->f_fsid.val[0]);
-	err |= __put_user (kbuf->f_fsid.val[1], &ubuf->f_fsid.val[1]);
-	return err;
-}
-
-extern asmlinkage int sys_statfs(const char * path, struct statfs * buf);
-
-asmlinkage int sys32_statfs(const char * path, struct statfs32 *buf)
-{
-	int ret;
-	struct statfs s;
-	mm_segment_t old_fs = get_fs();
-	char *pth;
-	
-	pth = getname (path);
-	ret = PTR_ERR(pth);
-	if (!IS_ERR(pth)) {
-		set_fs (KERNEL_DS);
-		ret = sys_statfs((const char *)pth, &s);
-		set_fs (old_fs);
-		putname (pth);
-		if (put_statfs(buf, &s))
-			return -EFAULT;
-	}
-	return ret;
-}
-
-extern asmlinkage int sys_fstatfs(unsigned int fd, struct statfs * buf);
-
-asmlinkage int sys32_fstatfs(unsigned int fd, struct statfs32 *buf)
-{
-	int ret;
-	struct statfs s;
-	mm_segment_t old_fs = get_fs();
-	
-	set_fs (KERNEL_DS);
-	ret = sys_fstatfs(fd, &s);
-	set_fs (old_fs);
-	if (put_statfs(buf, &s))
-		return -EFAULT;
-	return ret;
-}
-
 extern asmlinkage long sys_truncate(const char * path, unsigned long length);
 extern asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
 

arch/s390x/kernel/linux32.h

@@ -25,19 +25,6 @@ struct ipc_kludge_32 {
 #define F_SETLK64       13
 #define F_SETLKW64      14    
 
-struct statfs32 {
-	__s32			f_type;
-	__s32			f_bsize;
-	__s32			f_blocks;
-	__s32			f_bfree;
-	__s32			f_bavail;
-	__s32			f_files;
-	__s32			f_ffree;
-	__kernel_fsid_t		f_fsid;
-	__s32			f_namelen;  
-	__s32			f_spare[6];
-};
-
 typedef __u32 old_sigset_t32;       /* at least 32 bits */ 
 
 struct old_sigaction32 {

arch/s390x/kernel/wrapper32.S

@@ -440,17 +440,17 @@ sys32_setpriority_wrapper:
 	lgfr	%r4,%r4			# int
 	jg	sys_setpriority		# branch to system call
 
-	.globl  sys32_statfs_wrapper 
-sys32_statfs_wrapper:
+	.globl  compat_sys_statfs_wrapper 
+compat_sys_statfs_wrapper:
 	llgtr	%r2,%r2			# char *
-	llgtr	%r3,%r3			# struct statfs_emu31 *
-	jg	sys32_statfs		# branch to system call
+	llgtr	%r3,%r3			# struct compat_statfs *
+	jg	compat_sys_statfs	# branch to system call
 
-	.globl  sys32_fstatfs_wrapper 
-sys32_fstatfs_wrapper:
+	.globl  compat_sys_fstatfs_wrapper 
+compat_sys_fstatfs_wrapper:
 	llgfr	%r2,%r2			# unsigned int
-	llgtr	%r3,%r3			# struct statfs_emu31 *
-	jg	sys32_fstatfs		# branch to system call
+	llgtr	%r3,%r3			# struct compat_statfs *
+	jg	compat_sys_fstatfs	# branch to system call
 
 	.globl  sys32_socketcall_wrapper 
 sys32_socketcall_wrapper:

include/asm-s390x/compat.h

@@ -67,4 +67,17 @@ struct compat_flock {
 	short		__unused;
 };
 
+struct compat_statfs {
+	s32		f_type;
+	s32		f_bsize;
+	s32		f_blocks;
+	s32		f_bfree;
+	s32		f_bavail;
+	s32		f_files;
+	s32		f_ffree;
+	compat_fsid_t	f_fsid;
+	s32		f_namelen;  
+	s32		f_spare[6];
+};
+
 #endif /* _ASM_S390X_COMPAT_H */