Re: [PATCH for-next] RDMA/rxe: Fix memory allocation while locked

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On Fri, Aug 13, 2021 at 04:06:26PM -0500, Bob Pearson wrote:
> rxe_mcast_add_grp_elem() in rxe_mcast.c calls rxe_alloc() while holding
> spinlocks which in turn calls kzalloc(size, GFP_KERNEL) which is incorrect.
> This patch replaces rxe_alloc() by rxe_alloc_locked() which uses GFP_ATOMIC.
> This bug was caused by the below mentioned commit and failing to handle the
> need for the atomic allocate.
> 
> Fixes: 4276fd0dddc9 ("Remove RXE_POOL_ATOMIC")
> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Signed-off-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
> ---
>  drivers/infiniband/sw/rxe/rxe_mcast.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied to for-rc, thanks

Jason



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