From: Bob Peterson Date: Thu, 17 Mar 2011 20:19:58 +0000 (-0400) Subject: GFS2: filesystem hang caused by incorrect lock order X-Git-Tag: v2.6.39-rc5~46^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=44ad37d69b2cc421d5b5c7ad7fed16230685b092;p=pandora-kernel.git GFS2: filesystem hang caused by incorrect lock order This patch fixes a deadlock in GFS2 where two processes are trying to reclaim an unlinked dinode: One holds the inode glock and calls gfs2_lookup_by_inum trying to look up the inode, which it can't, due to I_FREEING. The other has set I_FREEING from vfs and is at the beginning of gfs2_delete_inode waiting for the glock, which is held by the first. The solution is to add a new non_block parameter to the gfs2_iget function that causes it to return -ENOENT if the inode is being freed. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse --- Reading git-diff-tree failed