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authorZhu Yanjun <yanjun.zhu@linux.dev>2022-04-28 00:10:28 -0400
committerJason Gunthorpe <jgg@nvidia.com>2022-05-04 22:02:58 -0300
commit08d709d5e1242340e10dd8d0a789b5cea508ccf5 (patch)
tree552c7ab68d0766b6f498fbe71e0660a58a6ac1ed /drivers/infiniband
parentdb5dfbf5b201df65c1f5332c4d9d5e7c2f42396b (diff)
downloadlinux-08d709d5e1242340e10dd8d0a789b5cea508ccf5.tar.bz2
RDMA/rxe: Optimize the mr pool struct
Based on the commit c9f4c695835c ("RDMA/rxe: Reverse the sense of RXE_POOL_NO_ALLOC"), only the mr pool uses the RXE_POOL_ALLOC, As such, replace this flags with pool type to save memory. Link: https://lore.kernel.org/r/20220428041028.1363139-1-yanjun.zhu@linux.dev Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_pool.c9
-rw-r--r--drivers/infiniband/sw/rxe/rxe_pool.h5
2 files changed, 3 insertions, 11 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_pool.c b/drivers/infiniband/sw/rxe/rxe_pool.c
index 87066d04ed18..8b1c4ffdbf0d 100644
--- a/drivers/infiniband/sw/rxe/rxe_pool.c
+++ b/drivers/infiniband/sw/rxe/rxe_pool.c
@@ -13,7 +13,6 @@ static const struct rxe_type_info {
size_t size;
size_t elem_offset;
void (*cleanup)(struct rxe_pool_elem *elem);
- enum rxe_pool_flags flags;
u32 min_index;
u32 max_index;
u32 max_elem;
@@ -73,7 +72,6 @@ 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_ALLOC,
.min_index = RXE_MIN_MR_INDEX,
.max_index = RXE_MAX_MR_INDEX,
.max_elem = RXE_MAX_MR_INDEX - RXE_MIN_MR_INDEX + 1,
@@ -101,7 +99,6 @@ void rxe_pool_init(struct rxe_dev *rxe, struct rxe_pool *pool,
pool->max_elem = info->max_elem;
pool->elem_size = ALIGN(info->size, RXE_POOL_ALIGN);
pool->elem_offset = info->elem_offset;
- pool->flags = info->flags;
pool->cleanup = info->cleanup;
atomic_set(&pool->num_elem, 0);
@@ -122,7 +119,7 @@ void *rxe_alloc(struct rxe_pool *pool)
void *obj;
int err;
- if (WARN_ON(!(pool->flags & RXE_POOL_ALLOC)))
+ if (WARN_ON(!(pool->type == RXE_TYPE_MR)))
return NULL;
if (atomic_inc_return(&pool->num_elem) > pool->max_elem)
@@ -156,7 +153,7 @@ int __rxe_add_to_pool(struct rxe_pool *pool, struct rxe_pool_elem *elem)
{
int err;
- if (WARN_ON(pool->flags & RXE_POOL_ALLOC))
+ if (WARN_ON(pool->type == RXE_TYPE_MR))
return -EINVAL;
if (atomic_inc_return(&pool->num_elem) > pool->max_elem)
@@ -206,7 +203,7 @@ static void rxe_elem_release(struct kref *kref)
if (pool->cleanup)
pool->cleanup(elem);
- if (pool->flags & RXE_POOL_ALLOC)
+ if (pool->type == RXE_TYPE_MR)
kfree(elem->obj);
atomic_dec(&pool->num_elem);
diff --git a/drivers/infiniband/sw/rxe/rxe_pool.h b/drivers/infiniband/sw/rxe/rxe_pool.h
index 24bcc786c1b3..0860660d65ec 100644
--- a/drivers/infiniband/sw/rxe/rxe_pool.h
+++ b/drivers/infiniband/sw/rxe/rxe_pool.h
@@ -7,10 +7,6 @@
#ifndef RXE_POOL_H
#define RXE_POOL_H
-enum rxe_pool_flags {
- RXE_POOL_ALLOC = BIT(1),
-};
-
enum rxe_elem_type {
RXE_TYPE_UC,
RXE_TYPE_PD,
@@ -35,7 +31,6 @@ struct rxe_pool {
struct rxe_dev *rxe;
const char *name;
void (*cleanup)(struct rxe_pool_elem *elem);
- enum rxe_pool_flags flags;
enum rxe_elem_type type;
unsigned int max_elem;