From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f193.google.com ([209.85.210.193]:41807 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726984AbeKRKLx (ORCPT ); Sun, 18 Nov 2018 05:11:53 -0500 Received: by mail-pf1-f193.google.com with SMTP id e22-v6so13090542pfn.8 for ; Sat, 17 Nov 2018 15:53:29 -0800 (PST) From: Jens Axboe To: linux-block@vger.kernel.org, linux-aio@kvack.org, linux-fsdevel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 3/5] aio: add iocb->ki_blk_qc field Date: Sat, 17 Nov 2018 16:53:15 -0700 Message-Id: <20181117235317.7366-4-axboe@kernel.dk> In-Reply-To: <20181117235317.7366-1-axboe@kernel.dk> References: <20181117235317.7366-1-axboe@kernel.dk> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Add the field and have the blockdev direct_IO() helpers set it. This is in preparation for being able to poll for iocb completion. Signed-off-by: Jens Axboe --- fs/block_dev.c | 2 ++ include/linux/fs.h | 1 + 2 files changed, 3 insertions(+) diff --git a/fs/block_dev.c b/fs/block_dev.c index d233a59ea364..8a2fed18e3fc 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -236,6 +236,7 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter, bio.bi_opf |= REQ_HIPRI; qc = submit_bio(&bio); + WRITE_ONCE(iocb->ki_blk_qc, qc); for (;;) { __set_current_state(TASK_UNINTERRUPTIBLE); @@ -396,6 +397,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) bio->bi_opf |= REQ_HIPRI; qc = submit_bio(bio); + WRITE_ONCE(iocb->ki_blk_qc, qc); break; } diff --git a/include/linux/fs.h b/include/linux/fs.h index c95c0807471f..032761d9b218 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -310,6 +310,7 @@ struct kiocb { int ki_flags; u16 ki_hint; u16 ki_ioprio; /* See linux/ioprio.h */ + u32 ki_blk_qc; } __randomize_layout; static inline bool is_sync_kiocb(struct kiocb *kiocb) -- 2.17.1