How can I tell the size of a file from a kernel module?

Question

I know about vfs_llseek() but I also need an equivalent function to ftell().

Possible duplicate of [How do you get the size of a file in the linux kernel?](http://stackoverflow.com/questions/18966071/how-do-you-get-the-size-of-a-file-in-the-linux-kernel) — Fazlin, Jun 20 '16 at 11:14

score 2 · Accepted Answer · answered Jun 19 '16 at 12:37

you could tyry to use vfs_llseek with a offset of 0 and whence of SEEK_END: it will go to the end and return the file position (which will be the end of the file)

Likewise for the current position, toy would use offset 0, SEEK_CUR, to return the current position.

How can I tell the size of a file from a kernel module?

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