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69b2bd16d9
linux_dsm_epyc7002/fs/ocfs2
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Xue jiufei 69b2bd16d9 ocfs2/dlm: force clean refmap when doing local cleanup 
dlm_do_local_recovery_cleanup() should force clean refmap if the owner of
lockres is UNKNOWN.  Otherwise node may hang when umounting filesystems.
Here's the situation:

	Node1                                    Node2
dlmlock()
  -> dlm_get_lock_resource()
send DLM_MASTER_REQUEST_MSG to
other nodes.

                                       trying to master this lockres,
                                       return MAYBE.

selected as the master of lockresA,
set mle->master to Node1,
and do assert_master,
send DLM_ASSERT_MASTER_MSG to Node2.
                                       Node 2 has interest on lockresA
                                       and return
                                       DLM_ASSERT_RESPONSE_MASTERY_REF
                                       then something happened and
                                       Node2 crashed.

Receiving DLM_ASSERT_RESPONSE_MASTERY_REF, set Node2 into refmap, and keep
sending DLM_ASSERT_MASTER_MSG to other nodes

o2hb found node2 down, calling dlm_hb_node_down() -->
dlm_do_local_recovery_cleanup() the master of lockresA is still UNKNOWN,
no need to call dlm_free_dead_locks().

Set the master of lockresA to Node1, but Node2 stills remains in refmap.

When Node1 umount, it found that the refmap of lockresA is not empty and
attempted to migrate it to Node2, But Node2 is already down, so umount
hang, trying to migrate lockresA again and again.

Signed-off-by: joyce <xuejiufei@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-11 15:56:49 -07:00
..
cluster ocfs2: use list_for_each_entry() instead of list_for_each() 2013-09-11 15:56:36 -07:00
dlm ocfs2/dlm: force clean refmap when doing local cleanup 2013-09-11 15:56:49 -07:00
dlmfs fs: Limit sys_mount to only request filesystem modules. 2013-03-03 19:36:31 -08:00
acl.c ocfs2: clean up dead code in ocfs2_acl_from_xattr() 2013-09-11 15:56:39 -07:00
acl.h fs: take the ACL checks to common code 2011-07-25 14:30:23 -04:00
alloc.c ocfs2: fix mutex_unlock and possible memory leak in ocfs2_remove_btree_range 2013-07-03 16:07:23 -07:00
alloc.h ocfs2: Add ocfs2_trim_fs for SSD trim support. 2011-05-23 23:37:18 -07:00
aops.c ocfs2: use i_size_read() to access i_size 2013-09-11 15:56:30 -07:00
aops.h aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
blockcheck.c ocfs2: kill endianness abuses in blockcheck.c 2012-05-29 23:28:35 -04:00
blockcheck.h
buffer_head_io.c ocfs2: Remove masklog ML_UPTODATE. 2011-02-24 16:22:20 +08:00
buffer_head_io.h
dcache.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
dcache.h Track negative entries v3 2010-09-10 09:18:15 -07:00
dir.c ocfs2: fix null pointer dereference in ocfs2_dir_foreach_blk_id() 2013-08-13 17:57:49 -07:00
dir.h [readdir] convert ocfs2 2013-06-29 12:57:02 +04:00
dlmglue.c aio: remove retry-based AIO 2013-05-07 18:38:27 -07:00
dlmglue.h ocfs2: Fix lockdep warning in reflink. 2010-09-10 09:19:06 -07:00
export.c fs: encode_fh: return FILEID_INVALID if invalid fid_type 2013-02-26 02:46:10 -05:00
export.h
extent_map.c ocfs2: use i_size_read() to access i_size 2013-09-11 15:56:30 -07:00
extent_map.h ocfs2: Implement llseek() 2011-07-25 14:58:15 -07:00
file.c ocfs2: lighten up allocate transaction 2013-09-11 15:56:28 -07:00
file.h ->permission() sanitizing: don't pass flags to ->permission() 2011-07-20 01:43:24 -04:00
heartbeat.c ocfs2: Remove mlog(0) from fs/ocfs2/heartbeat.c 2011-02-23 21:17:39 +08:00
heartbeat.h
inode.c ocfs2: Convert uid and gids between in core and on disk inodes 2013-02-13 06:00:58 -08:00
inode.h aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
ioctl.c ocfs2: use i_size_read() to access i_size 2013-09-11 15:56:30 -07:00
ioctl.h Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h 2010-03-02 14:10:20 -08:00
journal.c ocfs2: use i_size_read() to access i_size 2013-09-11 15:56:30 -07:00
journal.h ocfs2: lighten up allocate transaction 2013-09-11 15:56:28 -07:00
Kconfig ocfs2: Make OCFS2_FS depend on CONFIGFS_FS 2011-01-16 21:22:40 +00:00
localalloc.c ocfs2: ac_bits_wanted should be local_alloc_bits when returns -ENOSPC 2013-09-11 15:56:31 -07:00
localalloc.h ocfs2: increase the default size of local alloc windows 2010-05-05 18:18:07 -07:00
locks.c ocfs2: remove INODE from unused files. 2011-02-21 11:18:23 +08:00
locks.h
Makefile Ocfs2/move_extents: Add basic framework and source files for extent moving. 2011-05-25 15:17:08 +08:00
mmap.c kill f_vfsmnt 2013-02-26 02:46:10 -05:00
mmap.h
move_extents.c ocfs2: fix a memory leak in __ocfs2_move_extents() 2013-09-11 15:56:44 -07:00
move_extents.h Ocfs2/move_extents: move/defrag extents within a certain range. 2011-05-25 15:17:12 +08:00
namei.c ocfs2: fix readonly issue in ocfs2_unlink() 2013-07-03 16:07:24 -07:00
namei.h
ocfs1_fs_compat.h
ocfs2_fs.h Revert wrong fixes for common misspellings 2011-04-26 23:31:11 -07:00
ocfs2_ioctl.h Ocfs2/move_extents: Adding new ioctl code 'OCFS2_IOC_MOVE_EXT' to ocfs2. 2011-05-25 15:17:08 +08:00
ocfs2_lockid.h
ocfs2_lockingver.h ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
ocfs2_trace.h ocfs2: lighten up allocate transaction 2013-09-11 15:56:28 -07:00
ocfs2.h ocfs2: remove unecessary variable needs_checkpoint 2013-07-03 16:07:23 -07:00
quota_global.c ocfs2: use i_size_read() to access i_size 2013-09-11 15:56:30 -07:00
quota_local.c ocfs2: use i_size_read() to access i_size 2013-09-11 15:56:30 -07:00
quota.h ocfs2: use system_wq instead of ocfs2_quota_wq 2011-02-01 11:42:42 +01:00
refcounttree.c ocfs2: add missing return value check of ocfs2_get_clusters() 2013-09-11 15:56:44 -07:00
refcounttree.h ocfs2: fix NULL pointer dereference in ocfs2_duplicate_clusters_by_page 2013-08-13 17:57:49 -07:00
reservations.c ocfs2: Remove masklog ML_RESERVATIONS. 2011-02-23 22:10:56 +08:00
reservations.h Fix common misspellings 2011-03-31 11:26:23 -03:00
resize.c ocfs2: Remove mlog(0) from fs/ocfs2/suballoc.c 2011-02-22 08:24:01 +08:00
resize.h
slot_map.c ocfs2: Clean up messages in the fs 2011-07-24 10:34:54 -07:00
slot_map.h
stack_o2cb.c ocfs2: remove kfree() redundant null checks 2013-02-21 17:22:19 -08:00
stack_user.c dlm: add recovery callbacks 2012-01-04 08:56:31 -06:00
stackglue.c ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
stackglue.h Fix common misspellings 2011-03-31 11:26:23 -03:00
suballoc.c ocfs2: remove duplicated mlog_errno() in ocfs2_relink_block_group 2013-07-03 16:07:24 -07:00
suballoc.h ocfs2: ac->ac_allow_chain_relink=0 won't disable group relink 2013-02-27 19:10:09 -08:00
super.c fs/ocfs2/super.c: Use bigger nodestr to accomodate 32-bit node numbers 2013-08-28 19:26:38 -07:00
super.h treewide: use __printf not __attribute__((format(printf,...))) 2011-10-31 17:30:54 -07:00
symlink.c ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path 2013-02-26 02:46:12 -05:00
symlink.h ocfs: simplify symlink handling 2012-05-29 23:28:40 -04:00
sysfile.c ocfs2: remove kfree() redundant null checks 2013-02-21 17:22:19 -08:00
sysfile.h
uptodate.c ocfs2: Remove masklog ML_UPTODATE. 2011-02-24 16:22:20 +08:00
uptodate.h
ver.c
ver.h
xattr.c ocfs2: free meta_ac and data_ac when ocfs2_start_trans fails in ocfs2_xattr_set() 2013-09-11 15:56:47 -07:00
xattr.h xattr: Constify ->name member of "struct xattr". 2013-07-25 19:30:03 +10:00