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

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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>
This commit is contained in:
Stephen Rothwell
2005-09-06 15:16:40 -07:00
committed by Linus Torvalds
parent 8dbfc5cfdc
commit 202e5979af
11 changed files with 87 additions and 76 deletions
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12
ipc/compat.c
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@@ -42,10 +42,10 @@ struct compat_msgbuf {
struct compat_ipc_perm {
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 short seq;
};
@@ -174,8 +174,8 @@ static inline int __put_compat_ipc_perm(struct ipc64_perm *p,
struct compat_ipc_perm __user *up)
{
int err;
compat_uid_t u;
compat_gid_t g;
__compat_uid_t u;
__compat_gid_t g;
err = __put_user(p->key, &up->key);
SET_UID(u, p->uid);