diff options
| author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-08-16 17:16:04 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-08-30 23:01:00 -0700 |
| commit | 1db5759e2d29c90d99659e132d4a137e20460061 (patch) | |
| tree | baea3eeedc5430df04897a1df9a473fe41ca3284 /fs | |
| parent | f742d992d7aa5b719ab7bde0203462b82d168d60 (diff) | |
ocfs2: Fix bad source start calculation during kernel writes
[PATCH] ocfs2: Fix bad source start calculation during kernel writes
For in-kernel writes ocfs2_get_write_source() should be starting the buffer
at a page boundary as the math in ocfs2_map_and_write_user_data() will pad
it back out to the correct write offset. Instead, we were passing the raw
offset, which caused ocfs2_map_and_write_user_data() start too far into the
buffer, resulting in corruptions from nfs client writes.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ocfs2/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index ac6c96431bb..e0cd7506826 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1353,7 +1353,7 @@ static struct page * ocfs2_get_write_source(struct ocfs2_buffered_write_priv *bp else src_page = ERR_PTR(-EFAULT); } else { - bp->b_src_buf = buf; + bp->b_src_buf = (char *)((unsigned long)buf & PAGE_CACHE_MASK); } return src_page; |