diff options
author | James Morris <jmorris@namei.org> | 2009-05-08 17:56:47 +1000 |
---|---|---|
committer | James Morris <jmorris@namei.org> | 2009-05-08 17:56:47 +1000 |
commit | d254117099d711f215e62427f55dfb8ebd5ad011 (patch) | |
tree | 0848ff8dd74314fec14a86497f8d288c86ba7c65 /kernel/relay.c | |
parent | 07ff7a0b187f3951788f64ae1f30e8109bc8e9eb (diff) | |
parent | 8c9ed899b44c19e81859fbb0e9d659fe2f8630fc (diff) |
Merge branch 'master' into next
Diffstat (limited to 'kernel/relay.c')
-rw-r--r-- | kernel/relay.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/relay.c b/kernel/relay.c index 8f2179c8056..bc188549788 100644 --- a/kernel/relay.c +++ b/kernel/relay.c @@ -677,9 +677,7 @@ int relay_late_setup_files(struct rchan *chan, */ for_each_online_cpu(i) { if (unlikely(!chan->buf[i])) { - printk(KERN_ERR "relay_late_setup_files: CPU %u " - "has no buffer, it must have!\n", i); - BUG(); + WARN_ONCE(1, KERN_ERR "CPU has no buffer!\n"); err = -EINVAL; break; } @@ -797,13 +795,15 @@ void relay_subbufs_consumed(struct rchan *chan, if (!chan) return; - if (cpu >= NR_CPUS || !chan->buf[cpu]) + if (cpu >= NR_CPUS || !chan->buf[cpu] || + subbufs_consumed > chan->n_subbufs) return; buf = chan->buf[cpu]; - buf->subbufs_consumed += subbufs_consumed; - if (buf->subbufs_consumed > buf->subbufs_produced) + if (subbufs_consumed > buf->subbufs_produced - buf->subbufs_consumed) buf->subbufs_consumed = buf->subbufs_produced; + else + buf->subbufs_consumed += subbufs_consumed; } EXPORT_SYMBOL_GPL(relay_subbufs_consumed); |