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Subject[PATCH 1/3] f2fs: count dirty inodes to flush node pages during checkpoint
Date
If there are a lot of dirty inodes, we need to flush all of them when doing
checkpoint. So, we need to count this for enough free space.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/segment.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index fecb856..a6efb5c 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -471,11 +471,12 @@ static inline bool need_SSR(struct f2fs_sb_info *sbi)
{
int node_secs = get_blocktype_secs(sbi, F2FS_DIRTY_NODES);
int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS);
+ int imeta_secs = get_blocktype_secs(sbi, F2FS_DIRTY_IMETA);

if (test_opt(sbi, LFS))
return false;

- return free_sections(sbi) <= (node_secs + 2 * dent_secs +
+ return free_sections(sbi) <= (node_secs + 2 * dent_secs + imeta_secs +
reserved_sections(sbi) + 1);
}

@@ -484,6 +485,7 @@ static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi,
{
int node_secs = get_blocktype_secs(sbi, F2FS_DIRTY_NODES);
int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS);
+ int imeta_secs = get_blocktype_secs(sbi, F2FS_DIRTY_IMETA);

node_secs += get_blocktype_secs(sbi, F2FS_DIRTY_IMETA);

@@ -491,7 +493,8 @@ static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi,
return false;

return (free_sections(sbi) + freed) <=
- (node_secs + 2 * dent_secs + reserved_sections(sbi) + needed);
+ (node_secs + 2 * dent_secs + imeta_secs +
+ reserved_sections(sbi) + needed);
}

static inline bool excess_prefree_segs(struct f2fs_sb_info *sbi)
--
2.8.3
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