Commit 64bc06bb32ee broke buffered writes to journaled files (chattr
+j): we'll try to journal the buffer heads of the page being written to
in gfs2_iomap_journaled_page_done. However, the iomap code no longer
creates buffer heads, so we'll BUG() in gfs2_page_add_databufs. Fix
that by creating buffer heads ourself when needed.
Signed-off-by: Andreas Gruenbacher <agrue...@redhat.com>
---
fs/gfs2/bmap.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 03128ed1f34e..3c159a7f9a9e 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -975,6 +975,10 @@ static void gfs2_iomap_journaled_page_done(struct inode
*inode, loff_t pos,
{
struct gfs2_inode *ip = GFS2_I(inode);
+ if (!page_has_buffers(page)) {
+ create_empty_buffers(page, inode->i_sb->s_blocksize,
+ (1 << BH_Dirty)|(1 << BH_Uptodate));
+ }
gfs2_page_add_databufs(ip, page, offset_in_page(pos), copied);
}
--
2.17.1
