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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-03-06 22:59:56 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-03-20 17:00:14 +0300 |
| commit | 720037f939fa50fc3531035ae61b4cf4b0ff35e5 (patch) | |
| tree | a5e9234e256fa4ed35bfc67a79b5040ee8194a0b /fs/f2fs | |
| parent | 97da3854c526d3a6ee05c849c96e48d21527606c (diff) | |
| download | linux-720037f939fa50fc3531035ae61b4cf4b0ff35e5.tar.xz | |
f2fs: don't overwrite node block by SSR
This patch fixes that SSR can overwrite previous warm node block consisting of
a node chain since the last checkpoint.
Fixes: 5b6c6be2d878 ("f2fs: use SSR for warm node as well")
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/segment.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 4bd7a8b19332..29ef7088c558 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1163,6 +1163,12 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del) if (f2fs_discard_en(sbi) && !f2fs_test_and_set_bit(offset, se->discard_map)) sbi->discard_blks--; + + /* don't overwrite by SSR to keep node chain */ + if (se->type == CURSEG_WARM_NODE) { + if (!f2fs_test_and_set_bit(offset, se->ckpt_valid_map)) + se->ckpt_valid_blocks++; + } } else { if (!f2fs_test_and_clear_bit(offset, se->cur_valid_map)) { #ifdef CONFIG_F2FS_CHECK_FS |