From: Li RongQing <lirongqing@baidu.com>
Move the kfree() call outside the critical section to reduce lock
holding time. This aligns with the general principle of minimizing
work under locks.
Signed-off-by: Li RongQing <lirongqing@baidu.com>
---
drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 6c99c7f..c89417c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -196,17 +196,18 @@ static void cmd_ent_put(struct mlx5_cmd_work_ent *ent)
unsigned long flags;
spin_lock_irqsave(&cmd->alloc_lock, flags);
- if (!refcount_dec_and_test(&ent->refcnt))
- goto out;
+ if (!refcount_dec_and_test(&ent->refcnt)) {
+ spin_unlock_irqrestore(&cmd->alloc_lock, flags);
+ return;
+ }
if (ent->idx >= 0) {
cmd_free_index(cmd, ent->idx);
up(ent->page_queue ? &cmd->vars.pages_sem : &cmd->vars.sem);
}
+ spin_unlock_irqrestore(&cmd->alloc_lock, flags);
cmd_free_ent(ent);
-out:
- spin_unlock_irqrestore(&cmd->alloc_lock, flags);
}
static struct mlx5_cmd_layout *get_inst(struct mlx5_cmd *cmd, int idx)
--
2.9.4