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| author | Ingo Molnar <mingo@elte.hu> | 2011-04-21 11:39:21 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-21 11:39:28 +0200 |
| commit | 42ac9e87fdd89b77fa2ca0a5226023c1c2d83226 (patch) | |
| tree | dfdb1b720347a40f24a89a3e9c2727ae26ad5f01 /kernel/pid.c | |
| parent | 057f3fadb347e9c51b07e1b277bbdda79f976768 (diff) | |
| parent | f0e615c3cb72b42191b558c130409335812621d8 (diff) | |
Merge commit 'v2.6.39-rc4' into sched/core
Merge reason: Pick up upstream fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/pid.c')
| -rw-r--r-- | kernel/pid.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/pid.c b/kernel/pid.c index 02f22127426..57a8346a270 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -217,11 +217,14 @@ static int alloc_pidmap(struct pid_namespace *pid_ns) return -1; } -int next_pidmap(struct pid_namespace *pid_ns, int last) +int next_pidmap(struct pid_namespace *pid_ns, unsigned int last) { int offset; struct pidmap *map, *end; + if (last >= PID_MAX_LIMIT) + return -1; + offset = (last + 1) & BITS_PER_PAGE_MASK; map = &pid_ns->pidmap[(last + 1)/BITS_PER_PAGE]; end = &pid_ns->pidmap[PIDMAP_ENTRIES]; |