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2023 Jun 06
0
[bug report] ocfs2/cluster: Pin/unpin o2hb regions
...There are a couple OCFS functions which call this sleeping function
while holding a spinlock.
o2hb_heartbeat_group_drop_item() <- disables preempt
o2hb_region_inc_user() <- disables preempt
-> o2hb_region_pin()
-> o2nm_depend_item()
-> configfs_depend_item()
-> configfs_pin_fs()
-> simple_pin_fs()
-> vfs_kern_mount()
-> vfs_parse_fs_string()
fs/ocfs2/cluster/heartbeat.c
2338 static int o2hb_region_inc_user(const char *region_uuid)
2339 {
2340 int ret = 0;
2341
2342 spin_lock(&o2h...