5.4-stable review patch. If anyone has any objections, please let me know.
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From: Andreas Gruenbacher agruenba@redhat.com
commit 7c9d9223802fbed4dee1ae301661bf346964c9d2 upstream.
Truncate an inode's address space when flipping the GFS2_DIF_JDATA flag: depending on that flag, the pages in the address space will either use buffer heads or iomap_folio_state structs, and we cannot mix the two.
Reported-by: Kun Hu huk23@m.fudan.edu.cn, Jiaji Qin jjtan24@m.fudan.edu.cn Signed-off-by: Andreas Gruenbacher agruenba@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/gfs2/file.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -271,6 +271,7 @@ static int do_gfs2_set_flags(struct file error = filemap_fdatawait(inode->i_mapping); if (error) goto out; + truncate_inode_pages(inode->i_mapping, 0); if (new_flags & GFS2_DIF_JDATA) gfs2_ordered_del_inode(ip); }