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| author | Ira Weiny <ira.weiny@intel.com> | 2021-06-21 23:14:19 -0700 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-06-24 15:07:08 -0300 |
| commit | 36f5625af34c89d6c5426c43d321520d668c584c (patch) | |
| tree | c6bc10ac988c1443700d9f99a21587a881c54ecc /drivers/infiniband/hw/hfi1/sdma.c | |
| parent | 7364e74d48ec094f46f6a5abfd91dcebece94c0c (diff) | |
| download | linux-stable-36f5625af34c89d6c5426c43d321520d668c584c.tar.gz linux-stable-36f5625af34c89d6c5426c43d321520d668c584c.tar.bz2 linux-stable-36f5625af34c89d6c5426c43d321520d668c584c.zip | |
RDMA/hfi1: Remove use of kmap()
kmap() is being deprecated and will break uses of device dax after PKS
protection is introduced.[1]
The kmap() used in sdma does not need to be global. Use the new
kmap_local_page() which works with PKS and may provide better performance
for this thread local mapping anyway.
[1] https://lore.kernel.org/lkml/20201009195033.3208459-59-ira.weiny@intel.com/
Link: https://lore.kernel.org/r/20210622061422.2633501-2-ira.weiny@intel.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/sdma.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/sdma.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c index 1fcc6e9666e0..eb15c310d63d 100644 --- a/drivers/infiniband/hw/hfi1/sdma.c +++ b/drivers/infiniband/hw/hfi1/sdma.c @@ -3130,7 +3130,7 @@ int ext_coal_sdma_tx_descs(struct hfi1_devdata *dd, struct sdma_txreq *tx, } if (type == SDMA_MAP_PAGE) { - kvaddr = kmap(page); + kvaddr = kmap_local_page(page); kvaddr += offset; } else if (WARN_ON(!kvaddr)) { __sdma_txclean(dd, tx); @@ -3140,7 +3140,7 @@ int ext_coal_sdma_tx_descs(struct hfi1_devdata *dd, struct sdma_txreq *tx, memcpy(tx->coalesce_buf + tx->coalesce_idx, kvaddr, len); tx->coalesce_idx += len; if (type == SDMA_MAP_PAGE) - kunmap(page); + kunmap_local(kvaddr); /* If there is more data, return */ if (tx->tlen - tx->coalesce_idx) |