Ceph » CephFS

I found one case could cause this, such as in the xfstests-dev's open_by_handle.c, which will use the name_to_handle_at() to store the struct fid, which will contains the ino#, but the name_to_handle_at() won't open the file.

118 struct fid {
119         union {
120                 struct {
121                         u32 ino;                                                                                                                   
122                         u32 gen;
123                         u32 parent_ino;                     
124                         u32 parent_gen;                     
125                 } i32;
126                 struct {
127                         u32 block;
128                         u16 partref;
129                         u16 parent_partref;
130                         u32 generation;                     
131                         u32 parent_block;
132                         u32 parent_generation;              
133                 } udf;
134                 __u32 raw[0];
135         };
136 };

Then the test case could use the above struct fid to open the file later by using open_by_handle_at(). So when opening the file later the file could be already deleted and the ino# already reused.

Since this issue is marked as "Duplicate" it needs to specify what issue it duplicates in the "Related Issues" field.

Tracker throws this error when trying to populate the "Related Issue" field:

An issue cannot be linked to one of its subtasks

since the Parent Task here is set to https://tracker.ceph.com/issues/54653.