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| author | Raphael S.Carvalho <raphael.scarv@gmail.com> | 2013-05-01 00:28:27 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-01 02:04:07 +0200 |
| commit | 5cc5445164c16d32bab2912fac28356ab07aa8b4 (patch) | |
| tree | 63ecdef695220d172d1e487a8c94ac6d7a3bab25 /include | |
| parent | kernel/pid.c: improve flow of a loop inside alloc_pidmap. (diff) | |
| download | linux-5cc5445164c16d32bab2912fac28356ab07aa8b4.tar.xz linux-5cc5445164c16d32bab2912fac28356ab07aa8b4.zip | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pid_namespace.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 215e5e3dda10..8ac32836690e 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; |