ubifs: Remove insert_dead_orphan from replaying orphan process

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UBIFS will do commit at the end of mounting process(rw mode), dead
orphans(added by insert_dead_orphan in replaying orphan) are deleted
by ubifs_orphan_end_commit(). The only reason why dead orphans are
added into orphan list is that old orpans may be lost when powercut
happens in ubifs_orphan_end_commit():
ubifs_orphan_end_commit  // TNC(updated by orphans) is not written yet
 if (c->cmt_orphans != 0)
  commit_orphans
   consolidate // traverse orphan list
  write_orph_nodes // rewrite all orphans by ubifs_leb_change
  // If dead orphans are not in list, they will be lost when powercut
  // happens, then TNC won't be updated by old orphans in next mounting.
Luckily, the condition 'c->cmt_orphans != 0' will never be true in
mounting process, there can't be new orphans added into orphan list
before mounting returned, but commit will be done at the end of mounting.

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

...

This commit is contained in:

Zhihao Cheng 2024-04-10 15:37:46 +08:00 • committed by Richard Weinberger

parent 7bed61a1cf

commit 6376d7503b

1 changed files with 0 additions and 49 deletions

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49

fs/ubifs/orphan.c

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