don't put symlink bodies in pagecache into highmem
kmap() in page_follow_link_light() needed to go - allowing to hold
an arbitrary number of kmaps for long is a great way to deadlocking
the system.
new helper (inode_nohighmem(inode)) needs to be used for pagecache
symlinks inodes; done for all in-tree cases. page_follow_link_light()
instrumented to yell about anything missed.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 8f87e05..97a563b 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -361,6 +361,7 @@
break;
case S_IFLNK:
inode->i_op = &ocfs2_symlink_inode_operations;
+ inode_nohighmem(inode);
i_size_write(inode, le64_to_cpu(fe->i_size));
break;
default: