aboutsummaryrefslogtreecommitdiffstats
path: root/fs/ocfs2/inode.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ocfs2/inode.c')
-rw-r--r--fs/ocfs2/inode.c46
1 files changed, 13 insertions, 33 deletions
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index e1e4882eab4f..08d57a3d4e83 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -767,35 +767,6 @@ bail:
767 return ret; 767 return ret;
768} 768}
769 769
770static int ocfs2_request_delete(struct inode *inode)
771{
772 int status = 0;
773 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
774
775 if (ocfs2_inode_is_new(inode))
776 return 0;
777
778 if (ocfs2_node_map_is_only(osb, &osb->mounted_map,
779 osb->node_num))
780 return 0;
781 /*
782 * This is how ocfs2 determines whether an inode is still live
783 * within the cluster. Every node takes a shared read lock on
784 * the inode open lock in ocfs2_read_locked_inode(). When we
785 * get to ->delete_inode(), each node tries to convert it's
786 * lock to an exclusive. Trylocks are serialized by the inode
787 * meta data lock. If the upconvert suceeds, we know the inode
788 * is no longer live and can be deleted.
789 *
790 * Though we call this with the meta data lock held, the
791 * trylock keeps us from ABBA deadlock.
792 */
793 status = ocfs2_try_open_lock(inode, 1);
794 if (status < 0 && status != -EAGAIN)
795 mlog_errno(status);
796 return status;
797}
798
799/* Query the cluster to determine whether we should wipe an inode from 770/* Query the cluster to determine whether we should wipe an inode from
800 * disk or not. 771 * disk or not.
801 * 772 *
@@ -848,10 +819,19 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
848 goto bail; 819 goto bail;
849 } 820 }
850 821
851 status = ocfs2_request_delete(inode); 822 /*
852 /* -EAGAIN means that other nodes are still using the 823 * This is how ocfs2 determines whether an inode is still live
853 * inode. We're done here though, so avoid doing anything on 824 * within the cluster. Every node takes a shared read lock on
854 * disk and let them worry about deleting it. */ 825 * the inode open lock in ocfs2_read_locked_inode(). When we
826 * get to ->delete_inode(), each node tries to convert it's
827 * lock to an exclusive. Trylocks are serialized by the inode
828 * meta data lock. If the upconvert suceeds, we know the inode
829 * is no longer live and can be deleted.
830 *
831 * Though we call this with the meta data lock held, the
832 * trylock keeps us from ABBA deadlock.
833 */
834 status = ocfs2_try_open_lock(inode, 1);
855 if (status == -EAGAIN) { 835 if (status == -EAGAIN) {
856 status = 0; 836 status = 0;
857 mlog(0, "Skipping delete of %llu because it is in use on" 837 mlog(0, "Skipping delete of %llu because it is in use on"