diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-16 20:46:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-16 20:46:20 +0200 |
| commit | 5f19ca4e014f2bd4088b78f31426f0ba3b8e6a3c (patch) | |
| tree | 7357ef42d49b5ff46e1f9c7d0f873a3606b612f4 /io_uring/io_uring.h | |
| parent | d712d205210c494c29f33dc1d1f2ce4d7448faa9 (diff) | |
| parent | 58720809f52779dc0f08e53e54b014209d13eebb (diff) | |
Merge 6.6-rc6 into char-misc-next
We need the char/misc fixes in here as well, to build on for other
changes.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'io_uring/io_uring.h')
| -rw-r--r-- | io_uring/io_uring.h | 41 |
1 files changed, 27 insertions, 14 deletions
diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h index 547c30582fb8..0bc145614a6e 100644 --- a/io_uring/io_uring.h +++ b/io_uring/io_uring.h @@ -86,20 +86,33 @@ bool __io_alloc_req_refill(struct io_ring_ctx *ctx); bool io_match_task_safe(struct io_kiocb *head, struct task_struct *task, bool cancel_all); -#define io_lockdep_assert_cq_locked(ctx) \ - do { \ - lockdep_assert(in_task()); \ - \ - if (ctx->flags & IORING_SETUP_IOPOLL) { \ - lockdep_assert_held(&ctx->uring_lock); \ - } else if (!ctx->task_complete) { \ - lockdep_assert_held(&ctx->completion_lock); \ - } else if (ctx->submitter_task->flags & PF_EXITING) { \ - lockdep_assert(current_work()); \ - } else { \ - lockdep_assert(current == ctx->submitter_task); \ - } \ - } while (0) +#if defined(CONFIG_PROVE_LOCKING) +static inline void io_lockdep_assert_cq_locked(struct io_ring_ctx *ctx) +{ + lockdep_assert(in_task()); + + if (ctx->flags & IORING_SETUP_IOPOLL) { + lockdep_assert_held(&ctx->uring_lock); + } else if (!ctx->task_complete) { + lockdep_assert_held(&ctx->completion_lock); + } else if (ctx->submitter_task) { + /* + * ->submitter_task may be NULL and we can still post a CQE, + * if the ring has been setup with IORING_SETUP_R_DISABLED. + * Not from an SQE, as those cannot be submitted, but via + * updating tagged resources. + */ + if (ctx->submitter_task->flags & PF_EXITING) + lockdep_assert(current_work()); + else + lockdep_assert(current == ctx->submitter_task); + } +} +#else +static inline void io_lockdep_assert_cq_locked(struct io_ring_ctx *ctx) +{ +} +#endif static inline void io_req_task_work_add(struct io_kiocb *req) { |