On Wed, Nov 03, 2021 at 12:02:29AM -0500, Bob Pearson wrote:
> There are several race conditions discovered in the current rdma_rxe
> driver. They mostly relate to races between normal operations and
> destroying objects. This patch series makes several minor cleanups in
> rxe_pool.[ch] and replaces the red-black trees currently used by xarrays
> which have better atomic behavior.
>
> This patch series applies cleanly to current for-next.
> commit 6a463bc9d999 ("Merge branch 'for-rc' into rdma.git for-next")
>
> Signed-off-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
> v4
> Restructured patch series to change to xarray earlier which
> greatly simplified the changes.
> Rebased to current for-next
> v3
> Changed rxe_alloc to use GFP_KERNEL
> Addressed other comments by Jason Gunthorp
> Merged the previous 06/10 and 07/10 patches into one since they overlapped
> Added some minor cleanups as 10/10
> v2
> Rebased to current for-next.
> Added 4 additional patches
>
> Bob Pearson (13):
> RDMA/rxe: Replace irqsave locks with bh locks
> RDMA/rxe: Cleanup rxe_pool_entry
> RDMA/rxe: Copy setup parameters into rxe_pool
> RDMA/rxe: Save object pointer in pool element
> RDMA/rxe: Remove #include "rxe_loc.h" from rxe_pool.c
I took these patches
> RDMA/rxe: Replace RB tree by xarray for indexes
> RDMA/rxe: Remove some #defines from rxe_pool.h
> RDMA/rxe: Reverse the sense of RXE_POOL_NO_ALLOC
> RDMA/rxe: Replaced keyed rxe objects by indexed objects
> RDMA/rxe: Prevent taking references to dead objects
> RDMA/rxe: Fix ref error in rxe_av.c
> RDMA/rxe: Replace mr by rkey in responder resources
> RDMA/rxe: Protect against race between get_index and drop_ref
These need some fixing
Thanks,
Jason
