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include/linux/cred.h: fix build 

mips allmodconfig:

include/linux/cred.h: In function `creds_are_invalid':
include/linux/cred.h:187: error: `PAGE_SIZE' undeclared (first use in this function)
include/linux/cred.h:187: error: (Each undeclared identifier is reported only once
include/linux/cred.h:187: error: for each function it appears in.)

Fixes

commit b6dff3ec5e
Author:     David Howells <dhowells@redhat.com>
AuthorDate: Fri Nov 14 10:39:16 2008 +1100
Commit:     James Morris <jmorris@namei.org>
CommitDate: Fri Nov 14 10:39:16 2008 +1100

    CRED: Separate task security context from task_struct

I think.

It's way too large to be inlined anyway.

Dunno if this needs an EXPORT_SYMBOL() yet.

Cc: David Howells <dhowells@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Andrew Morton 2009-09-17 17:47:12 -07:00 committed by James Morris
parent 43c1266ce4
commit 74908a0009
2 changed files with 19 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
include/linux/cred.h
View File

@ -176,23 +176,7 @@ extern void __invalid_creds(const struct cred *, const char *, unsigned);
extern void __validate_process_creds(struct task_struct *, extern void __validate_process_creds(struct task_struct *,
const char *, unsigned); const char *, unsigned);
static inline bool creds_are_invalid(const struct cred *cred) extern bool creds_are_invalid(const struct cred *cred);
{
if (cred->magic != CRED_MAGIC)
return true;
if (atomic_read(&cred->usage) < atomic_read(&cred->subscribers))
return true;
#ifdef CONFIG_SECURITY_SELINUX
if (selinux_is_enabled()) {
if ((unsigned long) cred->security < PAGE_SIZE)
return true;
if ((*(u32 *)cred->security & 0xffffff00) ==
(POISON_FREE << 24 | POISON_FREE << 16 | POISON_FREE << 8))
return true;
}
#endif
return false;
}
static inline void __validate_creds(const struct cred *cred, static inline void __validate_creds(const struct cred *cred,
const char *file, unsigned line) const char *file, unsigned line)

18
kernel/cred.c
View File

@ -782,6 +782,24 @@ EXPORT_SYMBOL(set_create_files_as);
#ifdef CONFIG_DEBUG_CREDENTIALS #ifdef CONFIG_DEBUG_CREDENTIALS
bool creds_are_invalid(const struct cred *cred)
{
if (cred->magic != CRED_MAGIC)
return true;
if (atomic_read(&cred->usage) < atomic_read(&cred->subscribers))
return true;
#ifdef CONFIG_SECURITY_SELINUX
if (selinux_is_enabled()) {
if ((unsigned long) cred->security < PAGE_SIZE)
return true;
if ((*(u32 *)cred->security & 0xffffff00) ==
(POISON_FREE << 24 | POISON_FREE << 16 | POISON_FREE << 8))
return true;
}
#endif
return false;
}
/* /*
* dump invalid credentials * dump invalid credentials
*/ */