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[PATCH] s390: fstatat64 support

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Add fstatat64 support to s390 in order to follow changes with
commit cff2b76009 .
Also fixes compilation for 31 bit.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Heiko Carstens 2006-02-12 12:35:03 +01:00 committed by Linus Torvalds
parent bc6d7fdf46
commit 19bf9cbf6b
4 changed files with 28 additions and 6 deletions
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20
arch/s390/kernel/compat_linux.c
View File

@ -905,6 +905,26 @@ asmlinkage long sys32_fstat64(unsigned long fd, struct stat64_emu31 __user * sta
return ret;
}
asmlinkage long sys32_fstatat(unsigned int dfd, char __user *filename,
struct stat64_emu31 __user* statbuf, int flag)
{
struct kstat stat;
int error = -EINVAL;
if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
goto out;
if (flag & AT_SYMLINK_NOFOLLOW)
error = vfs_lstat_fd(dfd, filename, &stat);
else
error = vfs_stat_fd(dfd, filename, &stat);
if (!error)
error = cp_stat64(statbuf, &stat);
out:
return error;
}
/*
* Linux/i386 didn't use to be able to handle more than
* 4 system call parameters, so these system calls used a memory

8
arch/s390/kernel/compat_wrapper.S
View File

@ -1523,13 +1523,13 @@ compat_sys_futimesat_wrapper:
llgtr %r4,%r4 # struct timeval *
jg compat_sys_futimesat
.globl compat_sys_newfstatat_wrapper
compat_sys_newfstatat_wrapper:
.globl sys32_fstatat_wrapper
sys32_fstatat_wrapper:
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # struct stat *
llgtr %r4,%r4 # struct stat64 *
lgfr %r5,%r5 # int
jg compat_sys_newfstatat
jg sys32_fstatat
.globl sys_unlinkat_wrapper
sys_unlinkat_wrapper:

2
arch/s390/kernel/syscalls.S
View File

@ -301,7 +301,7 @@ SYSCALL(sys_mkdirat,sys_mkdirat,sys_mkdirat_wrapper)
SYSCALL(sys_mknodat,sys_mknodat,sys_mknodat_wrapper) /* 290 */
SYSCALL(sys_fchownat,sys_fchownat,sys_fchownat_wrapper)
SYSCALL(sys_futimesat,sys_futimesat,compat_sys_futimesat_wrapper)
SYSCALL(sys_newfstatat,sys_newfstatat,compat_sys_newfstatat_wrapper)
SYSCALL(sys_fstatat64,sys_newfstatat,sys32_fstatat_wrapper)
SYSCALL(sys_unlinkat,sys_unlinkat,sys_unlinkat_wrapper)
SYSCALL(sys_renameat,sys_renameat,sys_renameat_wrapper) /* 295 */
SYSCALL(sys_linkat,sys_linkat,sys_linkat_wrapper)

4
include/asm-s390/unistd.h
View File

@ -285,7 +285,7 @@
#define __NR_mknodat 290
#define __NR_fchownat 291
#define __NR_futimesat 292
#define __NR_newfstatat 293
#define __NR_fstatat64 293
#define __NR_unlinkat 294
#define __NR_renameat 295
#define __NR_linkat 296
@ -359,6 +359,7 @@
#undef __NR_fcntl64
#undef __NR_sendfile64
#undef __NR_fadvise64_64
#undef __NR_fstatat64
#define __NR_select 142
#define __NR_getrlimit 191 /* SuS compliant getrlimit */
@ -381,6 +382,7 @@
#define __NR_setgid 214
#define __NR_setfsuid 215
#define __NR_setfsgid 216
#define __NR_newfstatat 293
#endif