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| author | Tejun Heo <tj@kernel.org> | 2011-03-04 19:09:02 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-03-04 19:09:02 +0100 |
| commit | e83a46bbb1d4c03defd733a64b727632a40059ad (patch) | |
| tree | c4bc4822b2d3af1bf38095f531adc0a2aac054a5 /lib/swiotlb.c | |
| parent | da527770007fce8e4541947d47918248286da875 (diff) | |
| parent | fd51469fb68b987032e46297e0a4fe9020063c20 (diff) | |
Merge branch 'for-linus' of ../linux-2.6-block into block-for-2.6.39/core
This merge creates two set of conflicts. One is simple context
conflicts caused by removal of throtl_scheduled_delayed_work() in
for-linus and removal of throtl_shutdown_timer_wq() in
for-2.6.39/core.
The other is caused by commit 255bb490c8 (block: blk-flush shouldn't
call directly into q->request_fn() __blk_run_queue()) in for-linus
crashing with FLUSH reimplementation in for-2.6.39/core. The conflict
isn't trivial but the resolution is straight-forward.
* __blk_run_queue() calls in flush_end_io() and flush_data_end_io()
should be called with @force_kblockd set to %true.
* elv_insert() in blk_kick_flush() should use
%ELEVATOR_INSERT_REQUEUE.
Both changes are to avoid invoking ->request_fn() directly from
request completion path and closely match the changes in the commit
255bb490c8.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'lib/swiotlb.c')
| -rw-r--r-- | lib/swiotlb.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/swiotlb.c b/lib/swiotlb.c index c47bbe11b804..93ca08b8a451 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -686,8 +686,10 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page, /* * Ensure that the address returned is DMA'ble */ - if (!dma_capable(dev, dev_addr, size)) - panic("map_single: bounce buffer is not DMA'ble"); + if (!dma_capable(dev, dev_addr, size)) { + swiotlb_tbl_unmap_single(dev, map, size, dir); + dev_addr = swiotlb_virt_to_bus(dev, io_tlb_overflow_buffer); + } return dev_addr; } |