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Commit 90d4388a authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: fix to update page flag 



This patch fixes to update page flag (e.g. Uptodate/cold flag) in
->write_begin.

Otherwise, page will be non-uptodate when we try to write entire
page, and cold data flag in page will not be clean when gced page
is being rewritten.

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 7023a1ad

fs/f2fs/data.c

+7 −4
Original line number Diff line number Diff line
@@ -1790,8 +1790,10 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping, 
	f2fs_put_dnode(&dn);

	f2fs_unlock_op(sbi);



	if ((len == PAGE_CACHE_SIZE) || PageUptodate(page))

		return 0;

	if (len == PAGE_CACHE_SIZE)

		goto out_update;

	if (PageUptodate(page))

		goto out_clear;



	f2fs_wait_on_page_writeback(page, DATA);
@@ -1801,7 +1803,7 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping, 


		/* Reading beyond i_size is simple: memset to zero */

		zero_user_segments(page, 0, start, end, PAGE_CACHE_SIZE);

		goto out;

		goto out_update;

	}



	if (dn.data_blkaddr == NEW_ADDR) {
@@ -1839,8 +1841,9 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping, 
			}

		}

	}

out:

out_update:

	SetPageUptodate(page);

out_clear:

	clear_cold_data(page);

	return 0;