Commit 68f31393 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: no need to make zeros beyond i_size 



We don't need to make zeros beyond i_size, since we already wrote that through
NEW_ADDR case.

Reported-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 7732c26a

fs/f2fs/data.c

+0 −9
Original line number Diff line number Diff line
@@ -1647,15 +1647,6 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping, 
	if (PageUptodate(page))

		goto out_clear;



	if ((pos & PAGE_MASK) >= i_size_read(inode)) {

		unsigned start = pos & (PAGE_SIZE - 1);

		unsigned end = start + len;



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

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

		goto out_update;

	}



	if (blkaddr == NEW_ADDR) {

		zero_user_segment(page, 0, PAGE_SIZE);

	} else {