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-rw-r--r--fs/ext3/inode.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 3fc4238..0384e53 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -1624,15 +1624,14 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
* For "nobh" option, we can only work if we don't need to
* read-in the page - otherwise we create buffers to do the IO.
*/
- if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH)) {
- if (PageUptodate(page)) {
- kaddr = kmap_atomic(page, KM_USER0);
- memset(kaddr + offset, 0, length);
- flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
- set_page_dirty(page);
- goto unlock;
- }
+ if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
+ ext3_should_writeback_data(inode) && PageUptodate(page)) {
+ kaddr = kmap_atomic(page, KM_USER0);
+ memset(kaddr + offset, 0, length);
+ flush_dcache_page(page);
+ kunmap_atomic(kaddr, KM_USER0);
+ set_page_dirty(page);
+ goto unlock;
}
if (!page_has_buffers(page))
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