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authorLeon Romanovsky <leon@kernel.org>2025-06-25 03:57:23 -0400
committerLeon Romanovsky <leon@kernel.org>2025-06-25 03:57:23 -0400
commit4aa765af7983d51eafa13d76398045a5e687b73d (patch)
treea3da8fece8eb8caf6143bb160f2ec3ce8019f219 /io_uring/fdinfo.c
parentb5eeb8365d196c95dbb0fd0a5b5a69a44832f16f (diff)
parent52931f55159ea5c27ad4fe66fc0cb8ad75ab795b (diff)
Add multiple priorities support to mlx5 RDMA TRANSPORT tables
From Patrisious: This short series from Patrisious extends mlx5 flow steering logic to allow creation rule creation with priorities in RDMA TRANSPORT tables. Thanks Link: https://lore.kernel.org/all/cover.1750148083.git.leon@kernel.org Signed-off-by: Leon Romanovsky <leon@kernel.org> * mlx5-next: (200 commits) net/mlx5: fs, add multiple prios to RDMA TRANSPORT steering domain Linux 6.16-rc2 ...
Diffstat (limited to 'io_uring/fdinfo.c')
-rw-r--r--io_uring/fdinfo.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/io_uring/fdinfo.c b/io_uring/fdinfo.c
index e9355276ab5d..9798d6fb4ec7 100644
--- a/io_uring/fdinfo.c
+++ b/io_uring/fdinfo.c
@@ -141,18 +141,26 @@ static void __io_uring_show_fdinfo(struct io_ring_ctx *ctx, struct seq_file *m)
if (ctx->flags & IORING_SETUP_SQPOLL) {
struct io_sq_data *sq = ctx->sq_data;
+ struct task_struct *tsk;
+ rcu_read_lock();
+ tsk = rcu_dereference(sq->thread);
/*
* sq->thread might be NULL if we raced with the sqpoll
* thread termination.
*/
- if (sq->thread) {
+ if (tsk) {
+ get_task_struct(tsk);
+ rcu_read_unlock();
+ getrusage(tsk, RUSAGE_SELF, &sq_usage);
+ put_task_struct(tsk);
sq_pid = sq->task_pid;
sq_cpu = sq->sq_cpu;
- getrusage(sq->thread, RUSAGE_SELF, &sq_usage);
sq_total_time = (sq_usage.ru_stime.tv_sec * 1000000
+ sq_usage.ru_stime.tv_usec);
sq_work_time = sq->work_time;
+ } else {
+ rcu_read_unlock();
}
}