search for: ocfs2_double_lock

Hello, I've been looking at ocfs2_rename() and I think there are two possible deadlocks: 1) ocfs2_double_lock() locks directories in the inode number order. But for a directory structure like: d1 / \ f1 d2 / f2 if you do 'mv f1 f2' and in parallel do something like 'rmdir d2' then ocfs2_double_lock() can try locking directories in order 'd2','d1' but ocfs2_rm...

Hi, here comes the next version of OCFS2 lockdep support. I've dropped patches with fixes from the series since they were already merged. As Joel suggested, I've simplified the main patch a bit so that we don't have ifdefs around lock declarations and there are also a few other minor improvements. Honza

...s2: make direntry invalid when deleting it ocfs2: Skip mount recovery for hard ro mounts ocfs2: Initialize data_ac might be used uninitialize ocfs2: Little refactoring against ocfs2_iget ocfs2: optimize ocfs2_check_dir_entry with unlikely() annotations ocfs2: Release buffer_head in case of error in ocfs2_double_lock ocfs2: cluster Pin the remote node item in configfs ocfs2: validate bg_free_bits_count after update ocfs2: Use cpu_to_le16 for e_leaf_clusters in ocfs2_bg_discontig_add_extent ocfs2: Initialize the bktcnt variable properly and call it bucket_count ocfs2: Remove obsolete comments before ocfs2_start_...

Hi, the first four patches in this series fix locking problems in OCFS2 quota code (three of them can lead to potential deadlocks). The fifth patch reorders ip_alloc_sem for directories to be acquired before localalloc locks. Mark would you please merge these? The last two patches implement lockdep annotations for OCFS2 cluster locks. We annotate all the cluster locks except for special ones

Hi, I'm resending this patch series. It's rediffed against linux-next branch of Joel's git tree. The first four patches are obvious fixes of deadlocks in quota code and should go in as soon as possible. The other three patches implement lockdep support for OCFS2 cluster locks. So you can have a look whether the code make sence to you and possibly merge them. They should be NOP when