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Commit 5c0bb97c authored by Lukas Czerner's avatar Lukas Czerner Committed by Theodore Ts'o
Browse files

gfs2: use ->invalidatepage() length argument 



->invalidatepage() aop now accepts range to invalidate so we can make
use of it in gfs2_invalidatepage().

Signed-off-by: default avatarLukas Czerner <lczerner@redhat.com>
Acked-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
Cc: cluster-devel@redhat.com
parent 569d39fc

fs/gfs2/aops.c

+7 −2
Original line number Diff line number Diff line
@@ -948,24 +948,29 @@ static void gfs2_invalidatepage(struct page *page, unsigned int offset, 
				unsigned int length)

{

	struct gfs2_sbd *sdp = GFS2_SB(page->mapping->host);

	unsigned int stop = offset + length;

	int partial_page = (offset || length < PAGE_CACHE_SIZE);

	struct buffer_head *bh, *head;

	unsigned long pos = 0;



	BUG_ON(!PageLocked(page));

	if (offset == 0)

	if (!partial_page)

		ClearPageChecked(page);

	if (!page_has_buffers(page))

		goto out;



	bh = head = page_buffers(page);

	do {

		if (pos + bh->b_size > stop)

			return;



		if (offset <= pos)

			gfs2_discard(sdp, bh);

		pos += bh->b_size;

		bh = bh->b_this_page;

	} while (bh != head);

out:

	if (offset == 0)

	if (!partial_page)

		try_to_release_page(page, 0);

}