diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-08-14 14:37:50 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-08-20 09:00:10 -0700 |
| commit | 26d5859974bb817f7615be90199a8e82e3f0a0ed (patch) | |
| tree | 6adffccc881fb65d0b583932e641503f1e1171b2 | |
| parent | 740432f835608d11b5386321ab5aa8f61e07fb27 (diff) | |
f2fs: avoid garbage collecting already moved node blocks
If node blocks were already moved, we don't need to move them again.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fs/f2fs/gc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 81de28d8326f..0a5d573e2574 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -396,14 +396,18 @@ static void gc_node_segment(struct f2fs_sb_info *sbi, { bool initial = true; struct f2fs_summary *entry; + block_t start_addr; int off; + start_addr = START_BLOCK(sbi, segno); + next_step: entry = sum; for (off = 0; off < sbi->blocks_per_seg; off++, entry++) { nid_t nid = le32_to_cpu(entry->nid); struct page *node_page; + struct node_info ni; /* stop BG_GC if there is not enough free sections. */ if (gc_type == BG_GC && has_not_enough_free_secs(sbi, 0)) @@ -426,6 +430,12 @@ next_step: continue; } + get_node_info(sbi, nid, &ni); + if (ni.blk_addr != start_addr + off) { + f2fs_put_page(node_page, 1); + continue; + } + /* set page dirty and write it */ if (gc_type == FG_GC) { f2fs_wait_on_page_writeback(node_page, NODE); |