1 // SPDX-License-Identifier: GPL-2.0
9  *  Conversion between 31bit and 64bit native syscalls.
11  * Heavily inspired by the 32-bit Sparc compat code which is 
65 		return -EINVAL;  in COMPAT_SYSCALL_DEFINE5()
70 COMPAT_SYSCALL_DEFINE3(s390_truncate64, const char __user *, path, u32, high, u32, low)  in COMPAT_SYSCALL_DEFINE3()  argument
72 	return ksys_truncate(path, (unsigned long)high << 32 | low);  in COMPAT_SYSCALL_DEFINE3()
75 COMPAT_SYSCALL_DEFINE3(s390_ftruncate64, unsigned int, fd, u32, high, u32, low)  in COMPAT_SYSCALL_DEFINE3()  argument
77 	return ksys_ftruncate(fd, (unsigned long)high << 32 | low);  in COMPAT_SYSCALL_DEFINE3()
81 		       compat_size_t, count, u32, high, u32, low)  in COMPAT_SYSCALL_DEFINE5()  argument
84 		return -EINVAL;  in COMPAT_SYSCALL_DEFINE5()
85 	return ksys_pread64(fd, ubuf, count, (unsigned long)high << 32 | low);  in COMPAT_SYSCALL_DEFINE5()
89 		       compat_size_t, count, u32, high, u32, low)  in COMPAT_SYSCALL_DEFINE5()  argument
92 		return -EINVAL;  in COMPAT_SYSCALL_DEFINE5()
93 	return ksys_pwrite64(fd, ubuf, count, (unsigned long)high << 32 | low);  in COMPAT_SYSCALL_DEFINE5()
96 COMPAT_SYSCALL_DEFINE4(s390_readahead, int, fd, u32, high, u32, low, s32, count)  in COMPAT_SYSCALL_DEFINE4()  argument
98 	return ksys_readahead(fd, (unsigned long)high << 32 | low, count);  in COMPAT_SYSCALL_DEFINE4()
115 	u32             __pad5;     /* future possible st_blocks high bits */
116 	u32             st_blocks;  /* Number 512-byte blocks allocated. */
122 	u32             __pad8;     /* will be high 32 bits of ctime someday */
132 	tmp.st_dev = huge_encode_dev(stat->dev);  in cp_stat64()
133 	tmp.st_ino = stat->ino;  in cp_stat64()
134 	tmp.__st_ino = (u32)stat->ino;  in cp_stat64()
135 	tmp.st_mode = stat->mode;  in cp_stat64()
136 	tmp.st_nlink = (unsigned int)stat->nlink;  in cp_stat64()
137 	tmp.st_uid = from_kuid_munged(current_user_ns(), stat->uid);  in cp_stat64()
138 	tmp.st_gid = from_kgid_munged(current_user_ns(), stat->gid);  in cp_stat64()
139 	tmp.st_rdev = huge_encode_dev(stat->rdev);  in cp_stat64()
140 	tmp.st_size = stat->size;  in cp_stat64()
141 	tmp.st_blksize = (u32)stat->blksize;  in cp_stat64()
142 	tmp.st_blocks = (u32)stat->blocks;  in cp_stat64()
143 	tmp.st_atime = (u32)stat->atime.tv_sec;  in cp_stat64()
144 	tmp.st_mtime = (u32)stat->mtime.tv_sec;  in cp_stat64()
145 	tmp.st_ctime = (u32)stat->ctime.tv_sec;  in cp_stat64()
147 	return copy_to_user(ubuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;   in cp_stat64()
209 		return -EFAULT;  in COMPAT_SYSCALL_DEFINE1()
211 		return -EINVAL;  in COMPAT_SYSCALL_DEFINE1()
221 		return -EFAULT;  in COMPAT_SYSCALL_DEFINE1()
228 		return -EINVAL;   in COMPAT_SYSCALL_DEFINE3()
236 		return -EINVAL;   in COMPAT_SYSCALL_DEFINE3()
242  * 31 bit emulation wrapper functions for sys_fadvise64/fadvise64_64.
244  * because the 31 bit values differ from the 64 bit values.
247 COMPAT_SYSCALL_DEFINE5(s390_fadvise64, int, fd, u32, high, u32, low, compat_size_t, len, int, advis…  in COMPAT_SYSCALL_DEFINE5()  argument
253 	return ksys_fadvise64_64(fd, (unsigned long)high << 32 | low, len,  in COMPAT_SYSCALL_DEFINE5()
269 		return -EFAULT;  in COMPAT_SYSCALL_DEFINE1()