From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@fb.com>, Christoph Hellwig <hch@infradead.org>,
Huang Ying <ying.huang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
Ming Lei <ming.lei@redhat.com>, Jaegeuk Kim <jaegeuk@kernel.org>,
Chao Yu <yuchao0@huawei.com>,
linux-f2fs-devel@lists.sourceforge.net
Subject: [PATCH v2 06/51] f2fs: f2fs_read_end_io: comment on direct access to bvec table
Date: Mon, 26 Jun 2017 20:09:49 +0800 [thread overview]
Message-ID: <20170626121034.3051-7-ming.lei@redhat.com> (raw)
In-Reply-To: <20170626121034.3051-1-ming.lei@redhat.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: linux-f2fs-devel@lists.sourceforge.net
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
fs/f2fs/data.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 7697d03e8a98..622c44a1be78 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -56,6 +56,10 @@ static void f2fs_read_end_io(struct bio *bio)
int i;
#ifdef CONFIG_F2FS_FAULT_INJECTION
+ /*
+ * It is still safe to retrieve the 1st page of the bio
+ * in this way after supporting multipage bvec.
+ */
if (time_to_inject(F2FS_P_SB(bio->bi_io_vec->bv_page), FAULT_IO)) {
f2fs_show_injection_info(FAULT_IO);
bio->bi_status = BLK_STS_IOERR;
--
2.9.4
--
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next prev parent reply other threads:[~2017-06-26 12:09 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-26 12:09 [PATCH v2 00/51] block: support multipage bvec Ming Lei
2017-06-26 12:09 ` [PATCH v2 01/51] block: drbd: comment on direct access bvec table Ming Lei
2017-06-26 12:09 ` [PATCH v2 02/51] block: loop: comment on direct access to " Ming Lei
2017-06-26 12:09 ` [PATCH v2 03/51] kernel/power/swap.c: " Ming Lei
2017-06-26 12:09 ` [PATCH v2 04/51] mm: page_io.c: " Ming Lei
2017-06-26 12:09 ` [PATCH v2 05/51] fs/buffer: " Ming Lei
2017-06-26 12:09 ` Ming Lei [this message]
2017-06-26 12:09 ` [PATCH v2 07/51] bcache: " Ming Lei
2017-06-26 12:09 ` [PATCH v2 08/51] block: comment on bio_alloc_pages() Ming Lei
2017-06-26 12:09 ` [PATCH v2 09/51] block: comment on bio_iov_iter_get_pages() Ming Lei
2017-06-26 12:09 ` [PATCH v2 10/51] dm: limit the max bio size as BIO_MAX_PAGES * PAGE_SIZE Ming Lei
2017-06-26 12:09 ` [PATCH v2 11/51] md: raid1: initialize bvec table via bio_add_page() Ming Lei
2017-06-27 9:36 ` Guoqing Jiang
2017-06-26 12:09 ` [PATCH v2 12/51] md: raid10: avoid to access bvec table directly Ming Lei
2017-06-26 12:09 ` [PATCH v2 13/51] btrfs: avoid access to .bi_vcnt directly Ming Lei
2017-06-26 12:09 ` [PATCH v2 14/51] btrfs: avoid to access bvec table directly for a cloned bio Ming Lei
2017-06-26 18:04 ` Liu Bo
2017-06-26 12:09 ` [PATCH v2 15/51] btrfs: comment on direct access bvec table Ming Lei
2017-06-26 12:09 ` [PATCH v2 16/51] block: bounce: avoid direct access to " Ming Lei
2017-06-27 6:12 ` Matthew Wilcox
2017-06-27 7:34 ` Ming Lei
2017-06-26 12:10 ` [PATCH v2 17/51] bvec_iter: introduce BVEC_ITER_ALL_INIT Ming Lei
2017-06-26 12:10 ` [PATCH v2 18/51] block: bounce: don't access bio->bi_io_vec in copy_to_high_bio_irq Ming Lei
2017-06-26 12:10 ` [PATCH v2 19/51] block: comments on bio_for_each_segment[_all] Ming Lei
2017-06-26 12:10 ` [PATCH v2 20/51] block: introduce multipage/single page bvec helpers Ming Lei
2017-06-26 12:10 ` [PATCH v2 21/51] block: implement sp version of bvec iterator helpers Ming Lei
2017-06-26 12:10 ` [PATCH v2 22/51] block: introduce bio_for_each_segment_mp() Ming Lei
2017-06-26 12:10 ` [PATCH v2 23/51] blk-merge: compute bio->bi_seg_front_size efficiently Ming Lei
2017-06-26 12:10 ` [PATCH v2 24/51] block: blk-merge: try to make front segments in full size Ming Lei
2017-06-26 12:10 ` [PATCH v2 25/51] block: blk-merge: remove unnecessary check Ming Lei
2017-06-26 12:10 ` [PATCH v2 26/51] block: use bio_for_each_segment_mp() to compute segments count Ming Lei
2017-06-26 12:10 ` [PATCH v2 27/51] block: use bio_for_each_segment_mp() to map sg Ming Lei
2017-06-26 12:10 ` [PATCH v2 28/51] block: introduce bvec_for_each_sp_bvec() Ming Lei
2017-06-26 12:10 ` [PATCH v2 29/51] block: bio: introduce single/multi page version of bio_for_each_segment_all() Ming Lei
2017-06-26 12:10 ` [PATCH v2 30/51] block: introduce bvec_get_last_page() Ming Lei
2017-06-26 12:10 ` [PATCH v2 31/51] fs/buffer.c: use bvec iterator to truncate the bio Ming Lei
2017-06-26 12:10 ` [PATCH v2 32/51] btrfs: use bvec_get_last_page to get bio's last page Ming Lei
2017-06-26 12:10 ` [PATCH v2 33/51] block: deal with dirtying pages for multipage bvec Ming Lei
2017-06-26 12:10 ` [PATCH v2 34/51] block: convert to singe/multi page version of bio_for_each_segment_all() Ming Lei
2017-06-26 12:10 ` [PATCH v2 35/51] bcache: convert to bio_for_each_segment_all_sp() Ming Lei
2017-06-26 12:10 ` [PATCH v2 36/51] md: raid1: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 37/51] dm-crypt: don't clear bvec->bv_page in crypt_free_buffer_pages() Ming Lei
2017-06-26 12:10 ` [PATCH v2 38/51] dm-crypt: convert to bio_for_each_segment_all_sp() Ming Lei
2017-06-26 12:10 ` [PATCH v2 39/51] fs/mpage: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 40/51] fs/block: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 41/51] fs/iomap: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 42/51] ext4: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 43/51] xfs: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 44/51] gfs2: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 45/51] f2fs: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 46/51] exofs: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 47/51] fs: crypto: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 48/51] fs/btrfs: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 49/51] fs/direct-io: " Ming Lei
2017-06-26 12:10 ` [PATCH v2 50/51] block: enable multipage bvecs Ming Lei
2017-06-26 12:10 ` [PATCH v2 51/51] block: bio: pass segments to bio if bio_add_page() is bypassed Ming Lei
2017-06-26 16:42 ` [PATCH v2 00/51] block: support multipage bvec David Sterba
2017-06-26 16:46 ` Jens Axboe
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