[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>
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index cc20f0e..2d02162 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -905,6 +905,26 @@
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