From: Jens Axboe axboe@kernel.dk
commit 76e1b6427fd8246376a97e3227049d49188dfb9c upstream.
Return whether we found and canceled requests or not. This is in preparation for using this information, no functional changes in this patch.
Reviewed-by: Pavel Begunkov asml.silence@gmail.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/io_uring.c | 30 ++++++++++++++++++++++++------ 1 file changed, 24 insertions(+), 6 deletions(-)
--- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -1143,15 +1143,23 @@ static bool io_task_match(struct io_kioc return false; }
-static void io_kill_timeouts(struct io_ring_ctx *ctx, struct task_struct *tsk) +/* + * Returns true if we found and killed one or more timeouts + */ +static bool io_kill_timeouts(struct io_ring_ctx *ctx, struct task_struct *tsk) { struct io_kiocb *req, *tmp; + int canceled = 0;
spin_lock_irq(&ctx->completion_lock); - list_for_each_entry_safe(req, tmp, &ctx->timeout_list, list) - if (io_task_match(req, tsk)) + list_for_each_entry_safe(req, tmp, &ctx->timeout_list, list) { + if (io_task_match(req, tsk)) { io_kill_timeout(req); + canceled++; + } + } spin_unlock_irq(&ctx->completion_lock); + return canceled != 0; }
static void __io_queue_deferred(struct io_ring_ctx *ctx) @@ -4650,7 +4658,10 @@ static bool io_poll_remove_one(struct io return do_complete; }
-static void io_poll_remove_all(struct io_ring_ctx *ctx, struct task_struct *tsk) +/* + * Returns true if we found and killed one or more poll requests + */ +static bool io_poll_remove_all(struct io_ring_ctx *ctx, struct task_struct *tsk) { struct hlist_node *tmp; struct io_kiocb *req; @@ -4670,6 +4681,8 @@ static void io_poll_remove_all(struct io
if (posted) io_cqring_ev_posted(ctx); + + return posted != 0; }
static int io_poll_cancel(struct io_ring_ctx *ctx, __u64 sqe_addr) @@ -7744,11 +7757,14 @@ static void io_cancel_defer_files(struct } }
-static void io_uring_cancel_files(struct io_ring_ctx *ctx, +/* + * Returns true if we found and killed one or more files pinning requests + */ +static bool io_uring_cancel_files(struct io_ring_ctx *ctx, struct files_struct *files) { if (list_empty_careful(&ctx->inflight_list)) - return; + return false;
io_cancel_defer_files(ctx, files); /* cancel all at once, should be faster than doing it one by one*/ @@ -7811,6 +7827,8 @@ static void io_uring_cancel_files(struct schedule(); finish_wait(&ctx->inflight_wait, &wait); } + + return true; }
static bool io_cancel_task_cb(struct io_wq_work *work, void *data)