Hi,
----- Original Message -----
| ->invalidatepage() aop now accepts range to invalidate so we can make
| use of it in gfs2_invalidatepage().
|
| Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
| Cc: cluster-devel@xxxxxxxxxx
| ---
| fs/gfs2/aops.c | 9 +++++++--
| 1 files changed, 7 insertions(+), 2 deletions(-)
|
| diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
| index 37093ba..ea920bf 100644
| --- a/fs/gfs2/aops.c
| +++ b/fs/gfs2/aops.c
| @@ -947,24 +947,29 @@ 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;
| +
I always regret it when I review something this early in the morning,
or post before the caffeine has taken full effect. But...
Shouldn't the statement above be (1) ">= stop" and (2) goto out;?
| 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);
| }
Regards,
Bob Peterson
Red Hat File Systems
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