RDMA/umem: Use correct value for SG entries in sg_copy_to_buffer()

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With page combining, the assumption that number of SG entries in umem SGL
equal to number of system pages in umem no longer holds.

umem->sg_nents tracks the SG entries in umem SGL. Use it in
sg_pcopy_to_buffer() as opposed to ib_umem_num_pages(umem).

Fixes: d10bcf947a ("RDMA/umem: Combine contiguous PAGE_SIZE regions in SGEs")
Reported-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Shiraz Saleem 2019-04-04 10:22:47 -05:00 • committed by Jason Gunthorpe

parent e1c9a0dc29

commit d0b5c01bb4

1 changed files with 2 additions and 2 deletions

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drivers/infiniband/core/umem.c

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