diff options
| author | Steven Whitehouse <swhiteho@redhat.com> | 2009-06-10 09:09:40 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2009-06-10 09:09:40 +0100 |
| commit | 40bc9a27e00d6c8c7e4dc2865c02d7402a950472 (patch) | |
| tree | 0a445d4c8b22833898a5363f750744146cb05aff /fs/gfs2/bmap.c | |
| parent | f6d03139d745198b434f65a28aabed524f415a4c (diff) | |
| download | lwn-40bc9a27e00d6c8c7e4dc2865c02d7402a950472.tar.gz lwn-40bc9a27e00d6c8c7e4dc2865c02d7402a950472.zip | |
GFS2: Fix cache coherency between truncate and O_DIRECT read
If a page was partially zeroed as the result of a truncate, then it was
not being correctly marked dirty. This resulted in the deleted data
reappearing if the file was read back via direct I/O.
Reported-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/bmap.c')
| -rw-r--r-- | fs/gfs2/bmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 1153a078920c..329763530dc0 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -1012,7 +1012,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping) gfs2_trans_add_bh(ip->i_gl, bh, 0); zero_user(page, offset, length); - + mark_buffer_dirty(bh); unlock: unlock_page(page); page_cache_release(page); |