Commit eb1353cf authored Jun 19, 2020 by Chao Yu Committed by Jaegeuk Kim Jul 07, 2020

f2fs: fix to check page dirty status before writeback



In f2fs_write_raw_pages(), we need to check page dirty status before
writeback, because there could be a racer (e.g. reclaimer) helps
writebacking the dirty page.

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

parent d078319d

fs/f2fs/compress.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1322,6 +1322,12 @@ retry_write:
		congestion_wait(BLK_RW_ASYNC,
		DEFAULT_IO_TIMEOUT);
		lock_page(cc->rpages[i]);

		if (!PageDirty(cc->rpages[i])) {
		unlock_page(cc->rpages[i]);
		continue;
		}

		clear_page_dirty_for_io(cc->rpages[i]);
		goto retry_write;
		}

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