Commit bad54831 authored by Lukas Czerner's avatar Lukas Czerner Committed by Theodore Ts'o

reiserfs: use ->invalidatepage() length argument

->invalidatepage() aop now accepts range to invalidate so we can make
use of it in reiserfs_invalidatepage()
Signed-off-by: default avatarLukas Czerner <lczerner@redhat.com>
Cc: reiserfs-devel@vger.kernel.org
parent 5c0bb97c
......@@ -2976,11 +2976,13 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
struct buffer_head *head, *bh, *next;
struct inode *inode = page->mapping->host;
unsigned int curr_off = 0;
unsigned int stop = offset + length;
int partial_page = (offset || length < PAGE_CACHE_SIZE);
int ret = 1;
BUG_ON(!PageLocked(page));
if (offset == 0)
if (!partial_page)
ClearPageChecked(page);
if (!page_has_buffers(page))
......@@ -2992,6 +2994,9 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
unsigned int next_off = curr_off + bh->b_size;
next = bh->b_this_page;
if (next_off > stop)
goto out;
/*
* is this block fully invalidated?
*/
......@@ -3010,7 +3015,7 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
* The get_block cached value has been unconditionally invalidated,
* so real IO is not possible anymore.
*/
if (!offset && ret) {
if (!partial_page && ret) {
ret = try_to_release_page(page, 0);
/* maybe should BUG_ON(!ret); - neilb */
}
......
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