io-wq: cancel request if it's asking for files and we don't have them (3dd1680d) · Commits · 戴 / test

This can't currently happen, but will be possible shortly. Handle missing files just like we do not being able to grab a needed mm, and mark the request as needing cancelation. Signed-off-by:

Jens Axboe <axboe@kernel.dk>

fs/io-wq.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -482,6 +482,10 @@ static void io_impersonate_work(struct io_worker *worker,
		current->files = work->identity->files;
		current->nsproxy = work->identity->nsproxy;
		task_unlock(current);
		if (!work->identity->files) {
		/* failed grabbing files, ensure work gets cancelled */
		work->flags \|= IO_WQ_WORK_CANCEL;
		}
		}
		if ((work->flags & IO_WQ_WORK_FS) && current->fs != work->identity->fs)
		current->fs = work->identity->fs;

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