| commit | 67ca141567519a6b0ec81850a7b6569b6d8c2b52 | [log] [tgz] |
|---|---|---|
| author | Anton Blanchard <anton@samba.org> | Sun Jun 03 19:43:44 2012 +0000 |
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | Tue Jul 03 14:14:47 2012 +1000 |
| tree | 204f16ef14591930529216357f39a4ed88ced14e | |
| parent | 0e4bc95d87394364f408627067238453830bdbf3 [diff] |
powerpc/iommu: Reduce spinlock coverage in iommu_free This patch moves tce_free outside of the lock in iommu_free. Some performance numbers were obtained with a Chelsio T3 adapter on two POWER7 boxes, running a 100 session TCP round robin test. Performance improved 25% with this patch applied. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>