linux-kernel - [PATCH 2/2] f2fs: fix to do f2fs_balance_fs in f2fs_map

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Message-ID: <20160820071202.31355-2-yuchao0@huawei.com>
Date:   Sat, 20 Aug 2016 15:12:02 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, Chao Yu <yuchao0@...wei.com>
Subject: [PATCH 2/2] f2fs: fix to do f2fs_balance_fs in f2fs_map_blocks correctly

If we preallocate blocks with f2fs_reserve_blocks in f2fs_map_blocks, we
should call f2fs_balance_fs for checking and reclaiming space, fix it.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/data.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index dee3a78..040a07a 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -784,6 +784,7 @@ skip:
 		err = reserve_new_blocks(&dn, prealloc);
 		if (err)
 			goto sync_out;
+		allocated = dn.node_changed;
 
 		map->m_len += dn.ofs_in_node - ofs_in_node;
 		if (prealloc && dn.ofs_in_node != last_ofs_in_node + 1) {
-- 
2.8.2.311.gee88674