From: Ming Lei <tom.leiming@gmail.com>
To: Jens Axboe <axboe@fb.com>, linux-kernel@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>,
Ming Lei <tom.leiming@gmail.com>,
Philipp Reisner <philipp.reisner@linbit.com>,
linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
Lars Ellenberg <lars.ellenberg@linbit.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
"open list:DRBD DRIVER" <drbd-dev@lists.linbit.com>
Subject: [Drbd-dev] [PATCH 14/60] block: drbd: comment on direct access bvec table
Date: Sat, 29 Oct 2016 16:08:13 +0800 [thread overview]
Message-ID: <1477728600-12938-15-git-send-email-tom.leiming@gmail.com> (raw)
In-Reply-To: <1477728600-12938-1-git-send-email-tom.leiming@gmail.com>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
---
drivers/block/drbd/drbd_bitmap.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index ab62b81c2ca7..ce9506da30ad 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -953,6 +953,7 @@ static void drbd_bm_endio(struct bio *bio)
struct drbd_bm_aio_ctx *ctx = bio->bi_private;
struct drbd_device *device = ctx->device;
struct drbd_bitmap *b = device->bitmap;
+ /* single page bio, safe for multipage bvec */
unsigned int idx = bm_page_to_idx(bio->bi_io_vec[0].bv_page);
if ((ctx->flags & BM_AIO_COPY_PAGES) == 0 &&
--
2.7.4
next prev parent reply other threads:[~2016-10-29 8:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-29 8:07 [Drbd-dev] [PATCH 00/60] block: support multipage bvec Ming Lei
2016-10-29 8:08 ` [Drbd-dev] [PATCH 03/60] block: drbd: remove impossible failure handling Ming Lei
2016-10-31 15:25 ` Christoph Hellwig
2016-10-29 8:08 ` Ming Lei [this message]
2016-10-31 15:25 ` [Drbd-dev] [PATCH 00/60] block: support multipage bvec Christoph Hellwig
2016-10-31 22:52 ` Ming Lei
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