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Diffstat (limited to 'arch/s390/kernel/compat_linux.c')
-rw-r--r--arch/s390/kernel/compat_linux.c116
1 files changed, 63 insertions, 53 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index db02052bd137..ca38139423ae 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -86,48 +86,51 @@
#define SET_STAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
#define SET_STAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
-asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
+COMPAT_SYSCALL_DEFINE3(s390_chown16, const char __user *, filename,
+ u16, user, u16, group)
{
return sys_chown(filename, low2highuid(user), low2highgid(group));
}
-asmlinkage long sys32_lchown16(const char __user * filename, u16 user, u16 group)
+COMPAT_SYSCALL_DEFINE3(s390_lchown16, const char __user *,
+ filename, u16, user, u16, group)
{
return sys_lchown(filename, low2highuid(user), low2highgid(group));
}
-asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
+COMPAT_SYSCALL_DEFINE3(s390_fchown16, unsigned int, fd, u16, user, u16, group)
{
return sys_fchown(fd, low2highuid(user), low2highgid(group));
}
-asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
+COMPAT_SYSCALL_DEFINE2(s390_setregid16, u16, rgid, u16, egid)
{
return sys_setregid(low2highgid(rgid), low2highgid(egid));
}
-asmlinkage long sys32_setgid16(u16 gid)
+COMPAT_SYSCALL_DEFINE1(s390_setgid16, u16, gid)
{
return sys_setgid((gid_t)gid);
}
-asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
+COMPAT_SYSCALL_DEFINE2(s390_setreuid16, u16, ruid, u16, euid)
{
return sys_setreuid(low2highuid(ruid), low2highuid(euid));
}
-asmlinkage long sys32_setuid16(u16 uid)
+COMPAT_SYSCALL_DEFINE1(s390_setuid16, u16, uid)
{
return sys_setuid((uid_t)uid);
}
-asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
+COMPAT_SYSCALL_DEFINE3(s390_setresuid16, u16, ruid, u16, euid, u16, suid)
{
return sys_setresuid(low2highuid(ruid), low2highuid(euid),
- low2highuid(suid));
+ low2highuid(suid));
}
-asmlinkage long sys32_getresuid16(u16 __user *ruidp, u16 __user *euidp, u16 __user *suidp)
+COMPAT_SYSCALL_DEFINE3(s390_getresuid16, u16 __user *, ruidp,
+ u16 __user *, euidp, u16 __user *, suidp)
{
const struct cred *cred = current_cred();
int retval;
@@ -144,13 +147,14 @@ asmlinkage long sys32_getresuid16(u16 __user *ruidp, u16 __user *euidp, u16 __us
return retval;
}
-asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
+COMPAT_SYSCALL_DEFINE3(s390_setresgid16, u16, rgid, u16, egid, u16, sgid)
{
return sys_setresgid(low2highgid(rgid), low2highgid(egid),
- low2highgid(sgid));
+ low2highgid(sgid));
}
-asmlinkage long sys32_getresgid16(u16 __user *rgidp, u16 __user *egidp, u16 __user *sgidp)
+COMPAT_SYSCALL_DEFINE3(s390_getresgid16, u16 __user *, rgidp,
+ u16 __user *, egidp, u16 __user *, sgidp)
{
const struct cred *cred = current_cred();
int retval;
@@ -167,12 +171,12 @@ asmlinkage long sys32_getresgid16(u16 __user *rgidp, u16 __user *egidp, u16 __us
return retval;
}
-asmlinkage long sys32_setfsuid16(u16 uid)
+COMPAT_SYSCALL_DEFINE1(s390_setfsuid16, u16, uid)
{
return sys_setfsuid((uid_t)uid);
}
-asmlinkage long sys32_setfsgid16(u16 gid)
+COMPAT_SYSCALL_DEFINE1(s390_setfsgid16, u16, gid)
{
return sys_setfsgid((gid_t)gid);
}
@@ -215,7 +219,7 @@ static int groups16_from_user(struct group_info *group_info, u16 __user *groupli
return 0;
}
-asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
+COMPAT_SYSCALL_DEFINE2(s390_getgroups16, int, gidsetsize, u16 __user *, grouplist)
{
const struct cred *cred = current_cred();
int i;
@@ -240,7 +244,7 @@ out:
return i;
}
-asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
+COMPAT_SYSCALL_DEFINE2(s390_setgroups16, int, gidsetsize, u16 __user *, grouplist)
{
struct group_info *group_info;
int retval;
@@ -265,22 +269,22 @@ asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
return retval;
}
-asmlinkage long sys32_getuid16(void)
+COMPAT_SYSCALL_DEFINE0(s390_getuid16)
{
return high2lowuid(from_kuid_munged(current_user_ns(), current_uid()));
}
-asmlinkage long sys32_geteuid16(void)
+COMPAT_SYSCALL_DEFINE0(s390_geteuid16)
{
return high2lowuid(from_kuid_munged(current_user_ns(), current_euid()));
}
-asmlinkage long sys32_getgid16(void)
+COMPAT_SYSCALL_DEFINE0(s390_getgid16)
{
return high2lowgid(from_kgid_munged(current_user_ns(), current_gid()));
}
-asmlinkage long sys32_getegid16(void)
+COMPAT_SYSCALL_DEFINE0(s390_getegid16)
{
return high2lowgid(from_kgid_munged(current_user_ns(), current_egid()));
}
@@ -295,41 +299,35 @@ COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, compat_ulong_t, second,
}
#endif
-asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
+COMPAT_SYSCALL_DEFINE3(s390_truncate64, const char __user *, path, u32, high, u32, low)
{
- if ((int)high < 0)
- return -EINVAL;
- else
- return sys_truncate(path, (high << 32) | low);
+ return sys_truncate(path, (unsigned long)high << 32 | low);
}
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
+COMPAT_SYSCALL_DEFINE3(s390_ftruncate64, unsigned int, fd, u32, high, u32, low)
{
- if ((int)high < 0)
- return -EINVAL;
- else
- return sys_ftruncate(fd, (high << 32) | low);
+ return sys_ftruncate(fd, (unsigned long)high << 32 | low);
}
-asmlinkage long sys32_pread64(unsigned int fd, char __user *ubuf,
- size_t count, u32 poshi, u32 poslo)
+COMPAT_SYSCALL_DEFINE5(s390_pread64, unsigned int, fd, char __user *, ubuf,
+ compat_size_t, count, u32, high, u32, low)
{
if ((compat_ssize_t) count < 0)
return -EINVAL;
- return sys_pread64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
+ return sys_pread64(fd, ubuf, count, (unsigned long)high << 32 | low);
}
-asmlinkage long sys32_pwrite64(unsigned int fd, const char __user *ubuf,
- size_t count, u32 poshi, u32 poslo)
+COMPAT_SYSCALL_DEFINE5(s390_pwrite64, unsigned int, fd, const char __user *, ubuf,
+ compat_size_t, count, u32, high, u32, low)
{
if ((compat_ssize_t) count < 0)
return -EINVAL;
- return sys_pwrite64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
+ return sys_pwrite64(fd, ubuf, count, (unsigned long)high << 32 | low);
}
-asmlinkage compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count)
+COMPAT_SYSCALL_DEFINE4(s390_readahead, int, fd, u32, high, u32, low, s32, count)
{
- return sys_readahead(fd, ((loff_t)AA(offhi) << 32) | AA(offlo), count);
+ return sys_readahead(fd, (unsigned long)high << 32 | low, count);
}
struct stat64_emu31 {
@@ -381,7 +379,7 @@ static int cp_stat64(struct stat64_emu31 __user *ubuf, struct kstat *stat)
return copy_to_user(ubuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
}
-asmlinkage long sys32_stat64(const char __user * filename, struct stat64_emu31 __user * statbuf)
+COMPAT_SYSCALL_DEFINE2(s390_stat64, const char __user *, filename, struct stat64_emu31 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_stat(filename, &stat);
@@ -390,7 +388,7 @@ asmlinkage long sys32_stat64(const char __user * filename, struct stat64_emu31 _
return ret;
}
-asmlinkage long sys32_lstat64(const char __user * filename, struct stat64_emu31 __user * statbuf)
+COMPAT_SYSCALL_DEFINE2(s390_lstat64, const char __user *, filename, struct stat64_emu31 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_lstat(filename, &stat);
@@ -399,7 +397,7 @@ asmlinkage long sys32_lstat64(const char __user * filename, struct stat64_emu31
return ret;
}
-asmlinkage long sys32_fstat64(unsigned long fd, struct stat64_emu31 __user * statbuf)
+COMPAT_SYSCALL_DEFINE2(s390_fstat64, unsigned int, fd, struct stat64_emu31 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_fstat(fd, &stat);
@@ -408,8 +406,8 @@ asmlinkage long sys32_fstat64(unsigned long fd, struct stat64_emu31 __user * sta
return ret;
}
-asmlinkage long sys32_fstatat64(unsigned int dfd, const char __user *filename,
- struct stat64_emu31 __user* statbuf, int flag)
+COMPAT_SYSCALL_DEFINE4(s390_fstatat64, unsigned int, dfd, const char __user *, filename,
+ struct stat64_emu31 __user *, statbuf, int, flag)
{
struct kstat stat;
int error;
@@ -435,7 +433,7 @@ struct mmap_arg_struct_emu31 {
compat_ulong_t offset;
};
-asmlinkage unsigned long old32_mmap(struct mmap_arg_struct_emu31 __user *arg)
+COMPAT_SYSCALL_DEFINE1(s390_old_mmap, struct mmap_arg_struct_emu31 __user *, arg)
{
struct mmap_arg_struct_emu31 a;
@@ -447,7 +445,7 @@ asmlinkage unsigned long old32_mmap(struct mmap_arg_struct_emu31 __user *arg)
a.offset >> PAGE_SHIFT);
}
-asmlinkage long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg)
+COMPAT_SYSCALL_DEFINE1(s390_mmap2, struct mmap_arg_struct_emu31 __user *, arg)
{
struct mmap_arg_struct_emu31 a;
@@ -456,7 +454,7 @@ asmlinkage long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg)
return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
}
-asmlinkage long sys32_read(unsigned int fd, char __user * buf, size_t count)
+COMPAT_SYSCALL_DEFINE3(s390_read, unsigned int, fd, char __user *, buf, compat_size_t, count)
{
if ((compat_ssize_t) count < 0)
return -EINVAL;
@@ -464,7 +462,7 @@ asmlinkage long sys32_read(unsigned int fd, char __user * buf, size_t count)
return sys_read(fd, buf, count);
}
-asmlinkage long sys32_write(unsigned int fd, const char __user * buf, size_t count)
+COMPAT_SYSCALL_DEFINE3(s390_write, unsigned int, fd, const char __user *, buf, compat_size_t, count)
{
if ((compat_ssize_t) count < 0)
return -EINVAL;
@@ -478,14 +476,13 @@ asmlinkage long sys32_write(unsigned int fd, const char __user * buf, size_t cou
* because the 31 bit values differ from the 64 bit values.
*/
-asmlinkage long
-sys32_fadvise64(int fd, loff_t offset, size_t len, int advise)
+COMPAT_SYSCALL_DEFINE5(s390_fadvise64, int, fd, u32, high, u32, low, compat_size_t, len, int, advise)
{
if (advise == 4)
advise = POSIX_FADV_DONTNEED;
else if (advise == 5)
advise = POSIX_FADV_NOREUSE;
- return sys_fadvise64(fd, offset, len, advise);
+ return sys_fadvise64(fd, (unsigned long)high << 32 | low, len, advise);
}
struct fadvise64_64_args {
@@ -495,8 +492,7 @@ struct fadvise64_64_args {
int advice;
};
-asmlinkage long
-sys32_fadvise64_64(struct fadvise64_64_args __user *args)
+COMPAT_SYSCALL_DEFINE1(s390_fadvise64_64, struct fadvise64_64_args __user *, args)
{
struct fadvise64_64_args a;
@@ -508,3 +504,17 @@ sys32_fadvise64_64(struct fadvise64_64_args __user *args)
a.advice = POSIX_FADV_NOREUSE;
return sys_fadvise64_64(a.fd, a.offset, a.len, a.advice);
}
+
+COMPAT_SYSCALL_DEFINE6(s390_sync_file_range, int, fd, u32, offhigh, u32, offlow,
+ u32, nhigh, u32, nlow, unsigned int, flags)
+{
+ return sys_sync_file_range(fd, ((loff_t)offhigh << 32) + offlow,
+ ((u64)nhigh << 32) + nlow, flags);
+}
+
+COMPAT_SYSCALL_DEFINE6(s390_fallocate, int, fd, int, mode, u32, offhigh, u32, offlow,
+ u32, lenhigh, u32, lenlow)
+{
+ return sys_fallocate(fd, mode, ((loff_t)offhigh << 32) + offlow,
+ ((u64)lenhigh << 32) + lenlow);
+}