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From: Qu Wenruo <wqu@suse.com>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH v5.1 11/12] btrfs: extent_io: Handle error better in extent_writepages()
Date: Mon, 18 Feb 2019 13:27:52 +0800	[thread overview]
Message-ID: <20190218052753.24138-12-wqu@suse.com> (raw)
In-Reply-To: <20190218052753.24138-1-wqu@suse.com>

Do proper cleanup if we hit any error in extent_writepages(),
and check the return value of flush_write_bio().

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 fs/btrfs/extent_io.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 480e138051f0..5db36dbfeb87 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4141,7 +4141,6 @@ int extent_writepages(struct address_space *mapping,
 		      struct writeback_control *wbc)
 {
 	int ret = 0;
-	int flush_ret;
 	struct extent_page_data epd = {
 		.bio = NULL,
 		.tree = &BTRFS_I(mapping->host)->io_tree,
@@ -4150,8 +4149,12 @@ int extent_writepages(struct address_space *mapping,
 	};
 
 	ret = extent_write_cache_pages(mapping, wbc, &epd);
-	flush_ret = flush_write_bio(&epd);
-	BUG_ON(flush_ret < 0);
+	ASSERT(ret <= 0);
+	if (ret < 0) {
+		end_write_bio(&epd, ret);
+		return ret;
+	}
+	ret = flush_write_bio(&epd);
 	return ret;
 }
 
-- 
2.20.1


  parent reply	other threads:[~2019-02-18  5:28 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-18  5:27 [PATCH v5.1 00/12] btrfs: Enhancement to tree block validation Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 01/12] btrfs: Always output error message when key/level verification fails Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 02/12] btrfs: extent_io: Kill the forward declaration of flush_write_bio() Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 03/12] btrfs: disk-io: Show the timing of corrupted tree block explicitly Qu Wenruo
2019-02-23  4:38   ` [PATCH v5.2 " Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 04/12] btrfs: extent_io: Move the BUG_ON() in flush_write_bio() one level up Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 05/12] btrfs: extent_io: Handle error better in extent_write_full_page() Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 06/12] btrfs: extent_io: Handle error better in btree_write_cache_pages() Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 07/12] btrfs: extent_io: Kill the dead branch in extent_write_cache_pages() Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 08/12] btrfs: extent_io: Handle error better in extent_write_locked_range() Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 09/12] btrfs: extent_io: Kill the BUG_ON() in lock_extent_buffer_for_io() Qu Wenruo
2019-02-18  5:27 ` [PATCH v5.1 10/12] btrfs: extent_io: Kill the BUG_ON() in extent_write_cache_pages() Qu Wenruo
2019-03-12  0:33   ` David Sterba
2019-03-12  0:42     ` Qu Wenruo
2019-03-13 11:31       ` David Sterba
2019-03-13 12:02         ` Qu Wenruo
2019-03-15  6:27   ` [PATCH v5.2 " Qu Wenruo
2019-02-18  5:27 ` Qu Wenruo [this message]
2019-02-18  5:27 ` [PATCH v5.1 12/12] btrfs: Do mandatory tree block check before submitting bio Qu Wenruo
2019-02-18  9:26   ` Nikolay Borisov
2019-02-18  9:32     ` Qu Wenruo
2019-02-20 18:11       ` David Sterba
2019-02-20 18:25 ` [PATCH v5.1 00/12] btrfs: Enhancement to tree block validation David Sterba
2019-02-21  0:37   ` Qu Wenruo
2019-02-22 15:38     ` David Sterba
2019-02-21  4:49 ` Qu Wenruo
2019-02-22 15:18 ` David Sterba
2019-02-23  0:47   ` Qu Wenruo
2019-02-27 12:22     ` David Sterba
2019-02-27 13:40       ` Qu Wenruo

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