Commit cb5c94cf authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs crypto: zero next free dnode block 



Now page cache of meta inode is used by garbage collection for encrypted page,
it may contain random data, so we should zero it before issuing discard.

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent cfc4d971

fs/f2fs/segment.c

+1 −1
Original line number Diff line number Diff line
@@ -519,7 +519,7 @@ void discard_next_dnode(struct f2fs_sb_info *sbi, block_t blkaddr) 


	if (err) {

		struct page *page = grab_meta_page(sbi, blkaddr);

		/* zero-filled page */

		memset(page_address(page), 0, F2FS_BLKSIZE);

		set_page_dirty(page);

		f2fs_put_page(page, 1);

	}