We need 32 bit userspace FS_IOC32_GETFLAGS and FS_IOC32_SETFLAGS
compat ioctls for systems such as powerpc64. We use the normal
compat ioctl idiom as used by a variety of file systems to provide
this support.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4477
*/
+#ifdef CONFIG_COMPAT
+#include <linux/compat.h>
+#endif
#include <sys/dmu_objset.h>
#include <sys/zfs_vfsops.h>
#include <sys/zfs_vnops.h>
static long
zpl_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
- return (zpl_ioctl(filp, cmd, arg));
+ switch (cmd) {
+ case FS_IOC32_GETFLAGS:
+ cmd = FS_IOC_GETFLAGS;
+ break;
+ case FS_IOC32_SETFLAGS:
+ cmd = FS_IOC_SETFLAGS;
+ break;
+ default:
+ return (-ENOTTY);
+ }
+ return (zpl_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)));
}
#endif /* CONFIG_COMPAT */