[PATCH] compat: be more consistent about [ug]id_t

When I first wrote the compat layer patches, I was somewhat cavalier about
the definition of compat_uid_t and compat_gid_t (or maybe I just
misunderstood :-)).  This patch makes the compat types much more consistent
with the types we are being compatible with and hopefully will fix a few
bugs along the way.

	compat type		type in compat arch
	__compat_[ug]id_t	__kernel_[ug]id_t
	__compat_[ug]id32_t	__kernel_[ug]id32_t
	compat_[ug]id_t		[ug]id_t

The difference is that compat_uid_t is always 32 bits (for the archs we
care about) but __compat_uid_t may be 16 bits on some.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 10 insertions, 8 deletions

diff --git a/include/asm-ppc64/compat.h b/include/asm-ppc64/compat.h
index 12414f5fc666..6ec62cd2d1d1 100644
--- a/include/asm-ppc64/compat.h
+++ b/include/asm-ppc64/compat.h
@@ -13,8 +13,10 @@ typedef s32		compat_ssize_t;
 typedef s32             compat_time_t;
 typedef s32             compat_clock_t;
 typedef s32             compat_pid_t;
-typedef u32             compat_uid_t;
-typedef u32             compat_gid_t;
+typedef u32             __compat_uid_t;
+typedef u32             __compat_gid_t;
+typedef u32             __compat_uid32_t;
+typedef u32             __compat_gid32_t;
 typedef u32             compat_mode_t;
 typedef u32             compat_ino_t;
 typedef u32             compat_dev_t;
@@ -48,8 +50,8 @@ struct compat_stat {
         compat_ino_t    st_ino;
         compat_mode_t   st_mode;
         compat_nlink_t  st_nlink;       
-        compat_uid_t    st_uid;
-        compat_gid_t    st_gid;
+        __compat_uid32_t        st_uid;
+        __compat_gid32_t        st_gid;
         compat_dev_t    st_rdev;
         compat_off_t    st_size;
         compat_off_t    st_blksize;
@@ -144,10 +146,10 @@ static inline void __user *compat_alloc_user_space(long len)
  */
 struct compat_ipc64_perm {
         compat_key_t key;
-        compat_uid_t uid;
-        compat_gid_t gid;
-        compat_uid_t cuid;
-        compat_gid_t cgid;
+        __compat_uid_t uid;
+        __compat_gid_t gid;
+        __compat_uid_t cuid;
+        __compat_gid_t cgid;
         compat_mode_t mode;
         unsigned int seq;
         unsigned int __pad2;