Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
[PATCH] s390: fstatat64 support
Add fstatat64 support to s390 in order to follow changes with
commit cff2b760096d1e6feaa31948e7af4abbefe47822 .
Also fixes compilation for 31 bit.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
authored by
Heiko Carstens
and committed by
Linus Torvalds
19bf9cbf
bc6d7fdf
+28
-6
+20
arch/s390/kernel/compat_linux.c
+20
arch/s390/kernel/compat_linux.c
···
905
905
return ret;
906
906
}
907
907
908
+
asmlinkage long sys32_fstatat(unsigned int dfd, char __user *filename,
909
+
struct stat64_emu31 __user* statbuf, int flag)
910
+
{
911
+
struct kstat stat;
912
+
int error = -EINVAL;
913
+
914
+
if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
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+
goto out;
916
+
917
+
if (flag & AT_SYMLINK_NOFOLLOW)
918
+
error = vfs_lstat_fd(dfd, filename, &stat);
919
+
else
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+
error = vfs_stat_fd(dfd, filename, &stat);
921
+
922
+
if (!error)
923
+
error = cp_stat64(statbuf, &stat);
924
+
out:
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+
return error;
926
+
}
927
+
908
928
/*
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929
* Linux/i386 didn't use to be able to handle more than
910
930
* 4 system call parameters, so these system calls used a memory
+4
-4
arch/s390/kernel/compat_wrapper.S
+4
-4
arch/s390/kernel/compat_wrapper.S
···
1523
1523
llgtr %r4,%r4 # struct timeval *
1524
1524
jg compat_sys_futimesat
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1525
1526
-
.globl compat_sys_newfstatat_wrapper
1527
-
compat_sys_newfstatat_wrapper:
1526
+
.globl sys32_fstatat_wrapper
1527
+
sys32_fstatat_wrapper:
1528
1528
llgfr %r2,%r2 # unsigned int
1529
1529
llgtr %r3,%r3 # char *
1530
-
llgtr %r4,%r4 # struct stat *
1530
+
llgtr %r4,%r4 # struct stat64 *
1531
1531
lgfr %r5,%r5 # int
1532
-
jg compat_sys_newfstatat
1532
+
jg sys32_fstatat
1533
1533
1534
1534
.globl sys_unlinkat_wrapper
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1535
sys_unlinkat_wrapper:
+1
-1
arch/s390/kernel/syscalls.S
+1
-1
arch/s390/kernel/syscalls.S
···
301
301
SYSCALL(sys_mknodat,sys_mknodat,sys_mknodat_wrapper) /* 290 */
302
302
SYSCALL(sys_fchownat,sys_fchownat,sys_fchownat_wrapper)
303
303
SYSCALL(sys_futimesat,sys_futimesat,compat_sys_futimesat_wrapper)
304
-
SYSCALL(sys_newfstatat,sys_newfstatat,compat_sys_newfstatat_wrapper)
304
+
SYSCALL(sys_fstatat64,sys_newfstatat,sys32_fstatat_wrapper)
305
305
SYSCALL(sys_unlinkat,sys_unlinkat,sys_unlinkat_wrapper)
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SYSCALL(sys_renameat,sys_renameat,sys_renameat_wrapper) /* 295 */
307
307
SYSCALL(sys_linkat,sys_linkat,sys_linkat_wrapper)
+3
-1
include/asm-s390/unistd.h
+3
-1
include/asm-s390/unistd.h
···
285
285
#define __NR_mknodat 290
286
286
#define __NR_fchownat 291
287
287
#define __NR_futimesat 292
288
-
#define __NR_newfstatat 293
288
+
#define __NR_fstatat64 293
289
289
#define __NR_unlinkat 294
290
290
#define __NR_renameat 295
291
291
#define __NR_linkat 296
···
359
359
#undef __NR_fcntl64
360
360
#undef __NR_sendfile64
361
361
#undef __NR_fadvise64_64
362
+
#undef __NR_fstatat64
362
363
363
364
#define __NR_select 142
364
365
#define __NR_getrlimit 191 /* SuS compliant getrlimit */
···
382
381
#define __NR_setgid 214
383
382
#define __NR_setfsuid 215
384
383
#define __NR_setfsgid 216
384
+
#define __NR_newfstatat 293
385
385
386
386
#endif
387
387