From: Jiewei Ke kejiewei.cn@gmail.com
[ Upstream commit 6ca18d8927d468c763571f78c9a7387a69ffa020 ]
The type of mmap_offset should be u64 instead of int to match the type of mminfo.offset. If otherwise, after we create several thousands of CQs, it will run into overflow issues.
Link: https://lore.kernel.org/r/20191227113613.5020-1-kejiewei.cn@gmail.com Signed-off-by: Jiewei Ke kejiewei.cn@gmail.com Reviewed-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/sw/rxe/rxe_verbs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h index d1cc89f6f2e33..46c8a66731e6c 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.h +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h @@ -408,7 +408,7 @@ struct rxe_dev { struct list_head pending_mmaps;
spinlock_t mmap_offset_lock; /* guard mmap_offset */ - int mmap_offset; + u64 mmap_offset;
atomic64_t stats_counters[RXE_NUM_OF_COUNTERS];