[dm-devel] [PATCH] 2.4, 2.5: dm-ioctl.c: fix align_ptr() parameter
Kevin Corry
corryk at us.ibm.com
Fri Mar 28 16:28:02 UTC 2003
Change the "align" parameter to align_ptr() to an unsigned long.
On IA-64, the returned pointer looses it's upper half, which causes a
copy_to_user() call in results_to_user() to fail, which eventually
causes DM_TARGET_STATUS ioctls to fail.
Patch is against 2.4.20-dm-10, but also applies cleanly to 2.5.66.
--- linux-2.4.20a/drivers/md/dm-ioctl.c Fri Mar 28 15:27:32 2003
+++ linux-2.4.20b/drivers/md/dm-ioctl.c Fri Mar 28 15:26:38 2003
@@ -401,7 +401,7 @@
* Round up the ptr to the next 'align' boundary. Obviously
* 'align' must be a power of 2.
*/
-static inline void *align_ptr(void *ptr, unsigned int align)
+static inline void *align_ptr(void *ptr, unsigned long align)
{
align--;
return (void *) (((unsigned long) (ptr + align)) & ~align);
More information about the dm-devel
mailing list