RDMA/siw: Fix user page pinning accounting

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[ Upstream commit 65a8fc30fb ]

To avoid racing with other user memory reservations, immediately
account full amount of pages to be pinned.

Fixes: 2251334dca ("rdma/siw: application buffer management")
Reported-by: Jason Gunthorpe <jgg@nvidia.com>
Suggested-by: Alistair Popple <apopple@nvidia.com>
Reviewed-by: Alistair Popple <apopple@nvidia.com>
Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com>
Link: https://lore.kernel.org/r/20230202101000.402990-1-bmt@zurich.ibm.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Bernard Metzler 2023-02-02 11:10:00 +01:00 • committed by Greg Kroah-Hartman

parent 42991f51d2

commit 5e2d29b58c

1 changed files with 12 additions and 11 deletions

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drivers/infiniband/sw/siw/siw_mem.c

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