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| author | Philip J Kelleher <pjk1939@linux.vnet.ibm.com> | 2013-02-25 19:27:46 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2013-03-11 19:53:55 +0100 |
| commit | f37912039eb04979f269de0a7dc1a601702df51a (patch) | |
| tree | a9f52fbc05d2f616256d9ae1e323fb66f80b57aa /drivers/block/rsxx/dma.c | |
| parent | Linux 3.9-rc2 (diff) | |
| download | linux-f37912039eb04979f269de0a7dc1a601702df51a.tar.xz linux-f37912039eb04979f269de0a7dc1a601702df51a.zip | |
block: IBM RamSan 70/80 trivial changes.
This patch includes trivial changes that were recommended by
different members of the Linux Community.
Changes include:
o Removing the redundant wmb().
o Formatting
o Various other little things.
Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/rsxx/dma.c')
| -rw-r--r-- | drivers/block/rsxx/dma.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c index 63176e67662f..7c3a57bed2cd 100644 --- a/drivers/block/rsxx/dma.c +++ b/drivers/block/rsxx/dma.c @@ -432,16 +432,6 @@ static void rsxx_issue_dmas(struct work_struct *work) /* Let HW know we've queued commands. */ if (cmds_pending) { - /* - * We must guarantee that the CPU writes to 'ctrl->cmd.buf' - * (which is in PCI-consistent system-memory) from the loop - * above make it into the coherency domain before the - * following PIO "trigger" updating the cmd.idx. A WMB is - * sufficient. We need not explicitly CPU cache-flush since - * the memory is a PCI-consistent (ie; coherent) mapping. - */ - wmb(); - atomic_add(cmds_pending, &ctrl->stats.hw_q_depth); mod_timer(&ctrl->activity_timer, jiffies + DMA_ACTIVITY_TIMEOUT); @@ -798,8 +788,6 @@ static int rsxx_dma_ctrl_init(struct pci_dev *dev, iowrite32(ctrl->cmd.idx, ctrl->regmap + HW_CMD_IDX); iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); - wmb(); - return 0; } |