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| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-01-07 11:00:57 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-01-07 11:00:57 +0100 |
| commit | def840ede34ea1fa47494c62fba06479af2abbc1 (patch) | |
| tree | 89c0dff153508be35ddabb246d96ee8f08d3e90e /drivers/infiniband/hw/mlx5/mr.c | |
| parent | 774926641d1968a4839da3a6ac79d914742aac2f (diff) | |
| parent | c7da6fa43cb1c5e649da0f478a491feb9208cae7 (diff) | |
| download | linux-def840ede34ea1fa47494c62fba06479af2abbc1.tar.gz linux-def840ede34ea1fa47494c62fba06479af2abbc1.tar.bz2 linux-def840ede34ea1fa47494c62fba06479af2abbc1.zip | |
Merge tag 'kvm-arm-for-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-next
KVM/ARM changes for Linux v4.5
- Complete rewrite of the arm64 world switch in C, hopefully
paving the way for more sharing with the 32bit code, better
maintainability and easier integration of new features.
Also smaller and slightly faster in some cases...
- Support for 16bit VM identifiers
- Various cleanups
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) |