diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-01-23 09:56:00 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-01-23 09:56:00 -0300 |
| commit | 91f67b9a6472a243e2c0630f637ddff0af08038e (patch) | |
| tree | 2ba948b5b9a9c13b3494efb3a4006c15db1cbb37 /drivers/infiniband/core/verbs.c | |
| parent | 5670ebf54bd26482f57a094c53bdc562c106e0a9 (diff) | |
| parent | 2475bf0250dee99b477e0c56d7dc9d7ac3f04117 (diff) | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick fixes that went via perf/urgent.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/verbs.c')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 26b021f43ba4..11b1c1603aeb 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -2957,15 +2957,18 @@ EXPORT_SYMBOL(__rdma_block_iter_start); bool __rdma_block_iter_next(struct ib_block_iter *biter) { unsigned int block_offset; + unsigned int sg_delta; if (!biter->__sg_nents || !biter->__sg) return false; biter->__dma_addr = sg_dma_address(biter->__sg) + biter->__sg_advance; block_offset = biter->__dma_addr & (BIT_ULL(biter->__pg_bit) - 1); - biter->__sg_advance += BIT_ULL(biter->__pg_bit) - block_offset; + sg_delta = BIT_ULL(biter->__pg_bit) - block_offset; - if (biter->__sg_advance >= sg_dma_len(biter->__sg)) { + if (sg_dma_len(biter->__sg) - biter->__sg_advance > sg_delta) { + biter->__sg_advance += sg_delta; + } else { biter->__sg_advance = 0; biter->__sg = sg_next(biter->__sg); biter->__sg_nents--; |