diff options
| author | Raphael S.Carvalho <raphael.scarv@gmail.com> | 2013-04-30 15:28:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-30 17:04:07 -0700 |
| commit | 5cc5445164c16d32bab2912fac28356ab07aa8b4 (patch) | |
| tree | 63ecdef695220d172d1e487a8c94ac6d7a3bab25 | |
| parent | 8db049b3d666b3676ff4a976e03c14de302bf9fa (diff) | |
pid_namespace.c/.h: simplify defines
Move BITS_PER_PAGE from pid_namespace.c to pid_namespace.h, since we can
simplify the define PID_MAP_ENTRIES by using the BITS_PER_PAGE.
[akpm@linux-foundation.org: kernel/pid.c:54:1: warning: "BITS_PER_PAGE" redefined]
Signed-off-by: Raphael S.Carvalho <raphael.scarv@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/pid_namespace.h | 4 | ||||
| -rw-r--r-- | kernel/pid.c | 3 | ||||
| -rw-r--r-- | kernel/pid_namespace.c | 2 |
3 files changed, 3 insertions, 6 deletions
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 215e5e3dda1..8ac32836690 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -13,7 +13,9 @@ struct pidmap { void *page; }; -#define PIDMAP_ENTRIES ((PID_MAX_LIMIT + 8*PAGE_SIZE - 1)/PAGE_SIZE/8) +#define BITS_PER_PAGE (PAGE_SIZE * 8) +#define BITS_PER_PAGE_MASK (BITS_PER_PAGE-1) +#define PIDMAP_ENTRIES ((PID_MAX_LIMIT+BITS_PER_PAGE-1)/BITS_PER_PAGE) struct bsd_acct_struct; diff --git a/kernel/pid.c b/kernel/pid.c index 8147bdf22f3..6283d6412af 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -51,9 +51,6 @@ int pid_max = PID_MAX_DEFAULT; int pid_max_min = RESERVED_PIDS + 1; int pid_max_max = PID_MAX_LIMIT; -#define BITS_PER_PAGE (PAGE_SIZE*8) -#define BITS_PER_PAGE_MASK (BITS_PER_PAGE-1) - static inline int mk_pid(struct pid_namespace *pid_ns, struct pidmap *map, int off) { diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index bea15bdf82b..69473c4a653 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -19,8 +19,6 @@ #include <linux/reboot.h> #include <linux/export.h> -#define BITS_PER_PAGE (PAGE_SIZE*8) - struct pid_cache { int nr_ids; char name[16]; |