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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@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2016-08-20 15:12:02 +08:00 committed by Jaegeuk Kim
parent d600af236d
commit 58383befc3
1 changed files with 1 additions and 0 deletions
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fs/f2fs/data.c
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@ -783,6 +783,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
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) {