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Subject[PATCH 3/3] f2fs: write SSA pages under memory pressure
Date
Under memory pressure, we don't need to skip SSA page writes.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/checkpoint.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 838e8ed..20a917b 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -178,7 +178,7 @@ static int f2fs_write_meta_page(struct page *page,

if (unlikely(sbi->por_doing))
goto redirty_out;
- if (wbc->for_reclaim)
+ if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0))
goto redirty_out;
if (unlikely(f2fs_cp_error(sbi)))
goto redirty_out;
@@ -187,6 +187,9 @@ static int f2fs_write_meta_page(struct page *page,
write_meta_page(sbi, page);
dec_page_count(sbi, F2FS_DIRTY_META);
unlock_page(page);
+
+ if (wbc->for_reclaim)
+ f2fs_submit_merged_bio(sbi, META, WRITE);
return 0;

redirty_out:
--
2.1.1


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