Commit 5d7881ca authored Mar 07, 2018 by Yunlei He Committed by Jaegeuk Kim Mar 17, 2018

f2fs: Don't overwrite all types of node to keep node chain



Currently, we enable node SSR by default, and mixed
different types of node segment to do SSR more intensively.
Although reuse warm node is not allowed, warm node chain
will be destroyed by errors introduced by other types
node chain. So we'd better forbid reusing all types
of node to keep warm node chain.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

parent 93cf93f1

fs/f2fs/segment.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1862,7 +1862,7 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
		sbi->discard_blks--;

		/* don't overwrite by SSR to keep node chain */
		if (se->type == CURSEG_WARM_NODE) {
		if (IS_NODESEG(se->type)) {
		if (!f2fs_test_and_set_bit(offset, se->ckpt_valid_map))
		se->ckpt_valid_blocks++;
		}

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