tree 7a2aaf1b27703818d67d1d7cf544dc72455638d1
parent 45a90bfd90c1215bf824c0f705b409723f52361b
author Kalpak Shah <kalpak.shah@sun.com> 1223522514 -0400
committer Theodore Ts'o <tytso@mit.edu> 1223522514 -0400

ext4: fix xattr deadlock

ext4_xattr_set_handle() eventually ends up calling
ext4_mark_inode_dirty() which tries to expand the inode by shifting
the EAs.  This leads to the xattr_sem being downed again and leading
to a deadlock.

This patch makes sure that if ext4_xattr_set_handle() is in the
call-chain, ext4_mark_inode_dirty() will not expand the inode.

Signed-off-by: Kalpak Shah <kalpak.shah@sun.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>