4.4-stable review patch. If anyone has any objections, please let me know.
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From: Chao Yu yuchao0@huawei.com
[ Upstream commit 64c74a7ab505ea40d1b3e5d02735ecab08ae1b14 ]
- f2fs_fill_super - recover_fsync_data - recover_data - del_fsync_inode - iput - iput_final - write_inode_now - f2fs_write_inode - f2fs_balance_fs - f2fs_balance_fs_bg - sync_dirty_inodes
With data_flush mount option, during recovery, in order to avoid entering above writeback flow, let's detect recovery status and do skip in f2fs_balance_fs_bg.
Signed-off-by: Chao Yu yuchao0@huawei.com Signed-off-by: Yunlei He heyunlei@huawei.com Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/f2fs/segment.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -295,6 +295,9 @@ void f2fs_balance_fs(struct f2fs_sb_info
void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi) { + if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) + return; + /* try to shrink extent cache when there is no enough memory */ if (!available_free_memory(sbi, EXTENT_CACHE)) f2fs_shrink_extent_tree(sbi, EXTENT_CACHE_SHRINK_NUMBER);