diff options
| author | Takashi Iwai <tiwai@suse.de> | 2015-12-23 08:33:34 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-12-23 08:33:34 +0100 |
| commit | 59c8231089be96165735585694a801ae58ec6c95 (patch) | |
| tree | 41bd60a9aec5df20e07a81fbb526c8bc05e997fc /drivers/infiniband/hw/mlx5/mr.c | |
| parent | de5126cc3c0b0f291d08fa591dcdf237bc595a56 (diff) | |
| parent | 0fb0b822d157325b66c503d23332f64899bfb828 (diff) | |
Merge branch 'for-linus' into for-next
Conflicts:
drivers/gpu/drm/i915/intel_pm.c
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mr.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mr.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index ec8993a7b3be..6000f7aeede9 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -381,7 +381,19 @@ static void __cache_work_func(struct mlx5_cache_ent *ent) } } } else if (ent->cur > 2 * ent->limit) { - if (!someone_adding(cache) && + /* + * The remove_keys() logic is performed as garbage collection + * task. Such task is intended to be run when no other active + * processes are running. + * + * The need_resched() will return TRUE if there are user tasks + * to be activated in near future. + * + * In such case, we don't execute remove_keys() and postpone + * the garbage collection work to try to run in next cycle, + * in order to free CPU resources to other tasks. + */ + if (!need_resched() && !someone_adding(cache) && time_after(jiffies, cache->last_add + 300 * HZ)) { remove_keys(dev, i, 1); if (ent->cur > ent->limit) |