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reiserfs: use ->invalidatepage() length argument

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

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Cc: reiserfs-devel@vger.kernel.org
This commit is contained in:
Lukas Czerner 2013-05-21 23:58:51 -04:00 committed by Theodore Ts'o
parent 5c0bb97ce0
commit bad5483196
1 changed files with 7 additions and 2 deletions
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9
fs/reiserfs/inode.c
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@ -2976,11 +2976,13 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
struct buffer_head *head, *bh, *next; struct buffer_head *head, *bh, *next;
struct inode *inode = page->mapping->host; struct inode *inode = page->mapping->host;
unsigned int curr_off = 0; unsigned int curr_off = 0;
unsigned int stop = offset + length;
int partial_page = (offset || length < PAGE_CACHE_SIZE);
int ret = 1; int ret = 1;
BUG_ON(!PageLocked(page)); BUG_ON(!PageLocked(page));
if (offset == 0) if (!partial_page)
ClearPageChecked(page); ClearPageChecked(page);
if (!page_has_buffers(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; unsigned int next_off = curr_off + bh->b_size;
next = bh->b_this_page; next = bh->b_this_page;
if (next_off > stop)
goto out;
/* /*
* is this block fully invalidated? * 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, * The get_block cached value has been unconditionally invalidated,
* so real IO is not possible anymore. * so real IO is not possible anymore.
*/ */
if (!offset && ret) { if (!partial_page && ret) {
ret = try_to_release_page(page, 0); ret = try_to_release_page(page, 0);
/* maybe should BUG_ON(!ret); - neilb */ /* maybe should BUG_ON(!ret); - neilb */
} }