From cd6ef84e6ac9454080707f2f338360f5d7e556fc Mon Sep 17 00:00:00 2001 From: Badari Pulavarty Date: Sat, 11 Mar 2006 03:27:14 -0800 Subject: [PATCH] [PATCH] ext3: fix nobh mode for chattr +j inodes One can do "chattr +j" on a file to change its journalling mode. Fix writeback mode with "nobh" handling for it. Even though, we mount ext3 filesystem in writeback mode with "nobh" option, some one can do "chattr +j" on a single file to force it to do journalled mode. In order to do journaling, ext3_block_truncate_page() need to fallback to default case of creating buffers and adding them to transaction etc. Signed-off-by: Badari Pulavarty Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/inode.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index 3fc4238e97..0384e539b8 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)) -- 2.39.5