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@@ -2976,11 +2976,13 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
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struct buffer_head *head, *bh, *next;
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struct inode *inode = page->mapping->host;
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unsigned int curr_off = 0;
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+ unsigned int stop = offset + length;
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+ int partial_page = (offset || length < PAGE_CACHE_SIZE);
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int ret = 1;
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BUG_ON(!PageLocked(page));
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- if (offset == 0)
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+ if (!partial_page)
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ClearPageChecked(page);
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if (!page_has_buffers(page))
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@@ -2992,6 +2994,9 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
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unsigned int next_off = curr_off + bh->b_size;
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next = bh->b_this_page;
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+ if (next_off > stop)
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+ goto out;
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+
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/*
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* is this block fully invalidated?
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*/
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@@ -3010,7 +3015,7 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset,
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* The get_block cached value has been unconditionally invalidated,
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* so real IO is not possible anymore.
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*/
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- if (!offset && ret) {
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+ if (!partial_page && ret) {
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ret = try_to_release_page(page, 0);
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/* maybe should BUG_ON(!ret); - neilb */
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}
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