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| author | David S. Miller <davem@davemloft.net> | 2010-02-17 16:20:14 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-17 16:20:14 -0800 |
| commit | 8c2fcadc933f713d51f46ec4dcd9b12830e0df84 (patch) | |
| tree | e0797b2db664d702f9d02dd0f45efddb2f0d7fe9 /fs/ocfs2/refcounttree.c | |
| parent | 232486e1e9f34889424b68ee6270440b554479a2 (diff) | |
| parent | b0483e78e5c4c9871fc5541875b3bc006846d46b (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'fs/ocfs2/refcounttree.c')
| -rw-r--r-- | fs/ocfs2/refcounttree.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 74db2be75dd..8ae65c9c020 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -2945,7 +2945,7 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle, while (offset < end) { page_index = offset >> PAGE_CACHE_SHIFT; - map_end = (page_index + 1) << PAGE_CACHE_SHIFT; + map_end = ((loff_t)page_index + 1) << PAGE_CACHE_SHIFT; if (map_end > end) map_end = end; @@ -2957,8 +2957,12 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle, page = grab_cache_page(mapping, page_index); - /* This page can't be dirtied before we CoW it out. */ - BUG_ON(PageDirty(page)); + /* + * In case PAGE_CACHE_SIZE <= CLUSTER_SIZE, This page + * can't be dirtied before we CoW it out. + */ + if (PAGE_CACHE_SIZE <= OCFS2_SB(sb)->s_clustersize) + BUG_ON(PageDirty(page)); if (!PageUptodate(page)) { ret = block_read_full_page(page, ocfs2_get_block); @@ -3170,7 +3174,7 @@ static int ocfs2_cow_sync_writeback(struct super_block *sb, while (offset < end) { page_index = offset >> PAGE_CACHE_SHIFT; - map_end = (page_index + 1) << PAGE_CACHE_SHIFT; + map_end = ((loff_t)page_index + 1) << PAGE_CACHE_SHIFT; if (map_end > end) map_end = end; |