openrisc: fix PTRS_PER_PGD define

On OpenRISC, with its 8k pages, PAGE_SHIFT is defined to be 13.
That makes the expression (1UL << (PAGE_SHIFT-2)) evaluate
to 2048.
The correct value for PTRS_PER_PGD should be 256.

Correcting the PTRS_PER_PGD define unveiled a bug in map_ram(),
where PTRS_PER_PGD was used when the intent was to iterate
over a set of page table entries.
This patch corrects that issue as well.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Acked-by: Jonas Bonn <jonas@southpole.se>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Stafford Horne <shorne@gmail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/inotify-syscalls.h b/inotify-syscalls.h
index 7a1627e..fe5268e 100644
--- a/inotify-syscalls.h
+++ b/inotify-syscalls.h
@@ -77,6 +77,10 @@
 #  define __NR_inotify_add_watch	(__NR_Linux + 248)
 #  define __NR_inotify_rm_watch		(__NR_Linux + 249)
 # endif
+#elif defined (__m68k__)
+# define __NR_inotify_init	284
+# define __NR_inotify_add_watch	285
+# define __NR_inotify_rm_watch	286
 #else
 # error "inotify not supported on this architecture!"
 #endif