iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

RDMA/mlx5: Fix the flow of a miss in the allocation of a cache ODP MR

Browse Source 
[ Upstream commit 2f0e60d5e9f96341a0c8a01be8878cdb3b29ff20 ]

When an ODP MR cache entry is empty and trying to allocate it, increment
the ent->miss counter and call to queue_adjust_cache_locked() to verify
the entry is balanced.

Fixes: aad719dcf379 ("RDMA/mlx5: Allow MRs to be created in the cache synchronously")
Link: https://lore.kernel.org/r/09503e295276dcacc92cb1d8aef1ad0961c99dc1.1644947594.git.leonro@nvidia.com
Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Aharon Landau 2022-02-15 19:55:30 +02:00 committed by Greg Kroah-Hartman
parent 279f318bd7
commit e462b0f518
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/hw/mlx5/mr.c
View File

@ -575,6 +575,8 @@ struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev,
ent = &cache->ent[entry];
spin_lock_irq(&ent->lock);
if (list_empty(&ent->head)) {
queue_adjust_cache_locked(ent);
ent->miss++;
spin_unlock_irq(&ent->lock);
mr = create_cache_mr(ent);
if (IS_ERR(mr))