f2fs: check free sections before disable checkpoint

'f2fs_is_checkpoint_ready()' checks free sections. If there is not
enough free sections, most f2fs operations will return -ENOSPC when
checkpoint is disabled.

It would be better to check free sections before disable checkpoint.

Signed-off-by: Wu Bo <bo.wu@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 4c8836ded90fc253a593a8348fb8ab78cf9eab40..f0f12b1eddc8b016c7aca76f6009f5f98531b682 100644 (file)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -906,6 +906,8 @@ int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable)
        if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK) &&
                dirty_segments(sbi) > ovp_hole_segs)
                return -EAGAIN;
+       if (has_not_enough_free_secs(sbi, 0, 0))
+               return -EAGAIN;
        return 0;
 }