diff options
| author | Anton Blanchard <anton@samba.org> | 2012-06-03 19:43:44 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-07-03 04:14:47 (GMT) |
| commit | 67ca141567519a6b0ec81850a7b6569b6d8c2b52 (patch) | |
| tree | 204f16ef14591930529216357f39a4ed88ced14e /arch/powerpc/kernel/io.c | |
| parent | 0e4bc95d87394364f408627067238453830bdbf3 (diff) | |
| download | linux-fsl-qoriq-67ca141567519a6b0ec81850a7b6569b6d8c2b52.tar.xz | |
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>
Diffstat (limited to 'arch/powerpc/kernel/io.c')
0 files changed, 0 insertions, 0 deletions