IB/core: Protect against concurrent access to hardware stats

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Currently access to hardware stats buffer isn't protected, this can
result in multiple writes and reads at the same time to the same
memory location. This can lead to providing an incorrect value to
the user. Add a mutex to protect against it.

Fixes: b40f4757da ("IB/core: Make device counter infrastructure dynamic")
Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Mark Bloch 2018-03-27 15:51:05 +03:00 • committed by Jason Gunthorpe

parent c8d75a980f

commit e945130b52

2 changed files with 32 additions and 6 deletions

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include/rdma/ib_verbs.h

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