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| author | Bob Pearson <rpearsonhpe@gmail.com> | 2022-03-03 18:07:59 -0600 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-03-15 20:49:56 -0300 |
| commit | c9f4c695835c9c2085065a3adc1b57d2005b508b (patch) | |
| tree | b7ef839f84218c0dcdd19412f2452d5523b15834 /drivers/infiniband | |
| parent | 8a1a0be894da0d06bfbb496cc2dc3057fa83e103 (diff) | |
| download | linux-stable-c9f4c695835c9c2085065a3adc1b57d2005b508b.tar.gz linux-stable-c9f4c695835c9c2085065a3adc1b57d2005b508b.tar.bz2 linux-stable-c9f4c695835c9c2085065a3adc1b57d2005b508b.zip | |
RDMA/rxe: Reverse the sense of RXE_POOL_NO_ALLOC
There is only one remaining object type that allocates its own memory,
that is mr. So the sense of RXE_POOL_NO_ALLOC is changed to
RXE_POOL_ALLOC. Add checks to rxe_alloc() and rxe_add_to_pool() to make
sure the correct call is used for the setting of this flag.
Link: https://lore.kernel.org/r/20220304000808.225811-4-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_pool.c | 21 | ||||
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_pool.h | 2 |
2 files changed, 13 insertions, 10 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_pool.c b/drivers/infiniband/sw/rxe/rxe_pool.c index 16056b918ace..239c24544ff2 100644 --- a/drivers/infiniband/sw/rxe/rxe_pool.c +++ b/drivers/infiniband/sw/rxe/rxe_pool.c @@ -21,19 +21,17 @@ static const struct rxe_type_info { .name = "rxe-uc", .size = sizeof(struct rxe_ucontext), .elem_offset = offsetof(struct rxe_ucontext, elem), - .flags = RXE_POOL_NO_ALLOC, }, [RXE_TYPE_PD] = { .name = "rxe-pd", .size = sizeof(struct rxe_pd), .elem_offset = offsetof(struct rxe_pd, elem), - .flags = RXE_POOL_NO_ALLOC, }, [RXE_TYPE_AH] = { .name = "rxe-ah", .size = sizeof(struct rxe_ah), .elem_offset = offsetof(struct rxe_ah, elem), - .flags = RXE_POOL_INDEX | RXE_POOL_NO_ALLOC, + .flags = RXE_POOL_INDEX, .min_index = RXE_MIN_AH_INDEX, .max_index = RXE_MAX_AH_INDEX, }, @@ -41,7 +39,7 @@ static const struct rxe_type_info { .name = "rxe-srq", .size = sizeof(struct rxe_srq), .elem_offset = offsetof(struct rxe_srq, elem), - .flags = RXE_POOL_INDEX | RXE_POOL_NO_ALLOC, + .flags = RXE_POOL_INDEX, .min_index = RXE_MIN_SRQ_INDEX, .max_index = RXE_MAX_SRQ_INDEX, }, @@ -50,7 +48,7 @@ static const struct rxe_type_info { .size = sizeof(struct rxe_qp), .elem_offset = offsetof(struct rxe_qp, elem), .cleanup = rxe_qp_cleanup, - .flags = RXE_POOL_INDEX | RXE_POOL_NO_ALLOC, + .flags = RXE_POOL_INDEX, .min_index = RXE_MIN_QP_INDEX, .max_index = RXE_MAX_QP_INDEX, }, @@ -58,7 +56,6 @@ static const struct rxe_type_info { .name = "rxe-cq", .size = sizeof(struct rxe_cq), .elem_offset = offsetof(struct rxe_cq, elem), - .flags = RXE_POOL_NO_ALLOC, .cleanup = rxe_cq_cleanup, }, [RXE_TYPE_MR] = { @@ -66,7 +63,7 @@ static const struct rxe_type_info { .size = sizeof(struct rxe_mr), .elem_offset = offsetof(struct rxe_mr, elem), .cleanup = rxe_mr_cleanup, - .flags = RXE_POOL_INDEX, + .flags = RXE_POOL_INDEX | RXE_POOL_ALLOC, .min_index = RXE_MIN_MR_INDEX, .max_index = RXE_MAX_MR_INDEX, }, @@ -75,7 +72,7 @@ static const struct rxe_type_info { .size = sizeof(struct rxe_mw), .elem_offset = offsetof(struct rxe_mw, elem), .cleanup = rxe_mw_cleanup, - .flags = RXE_POOL_INDEX | RXE_POOL_NO_ALLOC, + .flags = RXE_POOL_INDEX, .min_index = RXE_MIN_MW_INDEX, .max_index = RXE_MAX_MW_INDEX, }, @@ -264,6 +261,9 @@ void *rxe_alloc(struct rxe_pool *pool) struct rxe_pool_elem *elem; void *obj; + if (WARN_ON(!(pool->flags & RXE_POOL_ALLOC))) + return NULL; + if (atomic_inc_return(&pool->num_elem) > pool->max_elem) goto out_cnt; @@ -286,6 +286,9 @@ out_cnt: int __rxe_add_to_pool(struct rxe_pool *pool, struct rxe_pool_elem *elem) { + if (WARN_ON(pool->flags & RXE_POOL_ALLOC)) + return -EINVAL; + if (atomic_inc_return(&pool->num_elem) > pool->max_elem) goto out_cnt; @@ -310,7 +313,7 @@ void rxe_elem_release(struct kref *kref) if (pool->cleanup) pool->cleanup(elem); - if (!(pool->flags & RXE_POOL_NO_ALLOC)) { + if (pool->flags & RXE_POOL_ALLOC) { obj = elem->obj; kfree(obj); } diff --git a/drivers/infiniband/sw/rxe/rxe_pool.h b/drivers/infiniband/sw/rxe/rxe_pool.h index 8fc95c6b7b9b..44b944c8c360 100644 --- a/drivers/infiniband/sw/rxe/rxe_pool.h +++ b/drivers/infiniband/sw/rxe/rxe_pool.h @@ -9,7 +9,7 @@ enum rxe_pool_flags { RXE_POOL_INDEX = BIT(1), - RXE_POOL_NO_ALLOC = BIT(4), + RXE_POOL_ALLOC = BIT(2), }; enum rxe_elem_type { |