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| author | Pekka Enberg <penberg@cs.helsinki.fi> | 2009-03-24 11:59:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-03 12:08:57 +0200 |
| commit | 3d544f411f2971eb82f5c52322251eb04494542a (patch) | |
| tree | ceeae2876e2ca76acf44e15bd64d98ffefb113d4 /include/linux/security.h | |
| parent | 645dae969c3b8651c5bc7c54a1835ec03820f85f (diff) | |
| download | linux-3d544f411f2971eb82f5c52322251eb04494542a.tar.gz linux-3d544f411f2971eb82f5c52322251eb04494542a.tar.bz2 linux-3d544f411f2971eb82f5c52322251eb04494542a.zip | |
kmemtrace, fs, security: move alloc_secdata() and free_secdata() to linux/security.h
Impact: cleanup
We want to remove percpu.h from rcupdate.h (for upcoming kmemtrace
changes), but this is not possible currently without breaking the
build because fs.h has implicit include file depedencies: it uses
GFP_* types in inlines but does not include gfp.h.
In practice most fs.h using .c files get gfp.h included implicitly,
via an indirect route: via rcupdate.h inclusion - so this underlying
problem gets masked in practice.
So we want to solve fs.h's dependency on gfp.h.
gfp.h can not be included here directly because it is not exported and it
would break the build the following way:
/home/mingo/tip/usr/include/linux/bsg.h:11: found __[us]{8,16,32,64} type without #include <linux/types.h>
/home/mingo/tip/usr/include/linux/fs.h:11: included file 'linux/gfp.h' is not exported
make[3]: *** [/home/mingo/tip/usr/include/linux/.check] Error 1
make[2]: *** [linux] Error 2
As suggested by Alexey Dobriyan, move alloc_secdata() and free_secdata()
to linux/security.h - they belong there. This also cleans fs.h of GFP_*
usage.
Suggested-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
LKML-Reference: <1237906803.25315.96.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/security.h')
| -rw-r--r-- | include/linux/security.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h index 54ed15799a83..d5fd6163606f 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -32,6 +32,7 @@ #include <linux/sched.h> #include <linux/key.h> #include <linux/xfrm.h> +#include <linux/gfp.h> #include <net/flow.h> /* Maximum number of letters for an LSM name string */ @@ -2953,5 +2954,28 @@ static inline void securityfs_remove(struct dentry *dentry) #endif +#ifdef CONFIG_SECURITY + +static inline char *alloc_secdata(void) +{ + return (char *)get_zeroed_page(GFP_KERNEL); +} + +static inline void free_secdata(void *secdata) +{ + free_page((unsigned long)secdata); +} + +#else + +static inline char *alloc_secdata(void) +{ + return (char *)1; +} + +static inline void free_secdata(void *secdata) +{ } +#endif /* CONFIG_SECURITY */ + #endif /* ! __LINUX_SECURITY_H */ |