Is it possible to find all files with a given inode? Efficiently?

Question

It is possible to find all the paths to a file with a given inode, in general, using find's -inum option. But this has awful performance for typical filesystems. What options are there to improve performance?

Are there filesystems with special support for this task? Are there updatedb-like utilities that index inodes?

The more general, the better the answer.

Postscript For more on requirements, see What's a good solution for file-tagging in linux?

score 2 · Answer 1 · answered Jun 24 '13 at 09:25

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debugfs -R "ncheck your_inode_num" /dev/sda

answered Jun 24 '13 at 09:25

Chupaka

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Do you know how `debugfs` builds up its map of inodes to paths? (From what little I know about ext2fs, the inode table only tells you about the blocks used by and permissions/types of the inodes.) Is it possible to use `debugfs` with a mounted partition? – Charles Stewart Jun 24 '13 at 10:19

score 2 · Accepted Answer · edited May 23 '17 at 12:41

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hey there is a similar question on SO, maybe that will help.

https://stackoverflow.com/questions/1340263/what-is-the-fastest-way-to-find-all-the-file-with-the-same-inode

edited May 23 '17 at 12:41

Community

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answered Jan 18 '10 at 18:10

julien

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While link only answers may answer the question asked, it is better to include the important parts in the answer along side the link. Link-only answers tend to be prone to link decaying. – Cholthi Paul Ttiopic Jul 04 '18 at 14:09

Is it possible to find all files with a given inode? Efficiently?

2 Answers2

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