Messages in this thread |  | | | Subject | Re: [PATCH][RFC] Simple tamper-proof device filesystem. | | From | Tetsuo Handa <> | | Date | Sun, 6 Jan 2008 16:36:06 +0900 | |
Hello.
Willy Tarreau wrote:
> Your patch is very confusing. In your description, as well as in the
> comments you talk about tmpfs, but your patch does not touch even one
> line of tmpfs and only changes ramfs. Even your variables and arguments
> refer to tmpfs. The Kconfig entry indicates that the feature depends
> on TMPFS too.
>
> Judging from the following comment :
> * Original tmpfs doesn't set ramfs_dir_inode_operations.setattr field.
>
> I suspect that you confuse both filesystems.
> - ramfs is in fs/ramfs and is always compiled in, you cannot disable it
> - tmpfs is in mm/shmem.c and is optional. It also supports options that
> ramfs does not (eg: size) and data may be swapped.
>
> Please understand that I'm not discussing the usefulness of your patch,
> I'm just trying to avoid a huge confusion.
Oh, I thought the filesystem mounted by "mount -t tmpfs none /tmp" is "tmpfs"
and the source code of "tmpfs" is located in fs/ramfs directory.
So, I should write the description as "an extension to ramfs" rather than
"an extension to tmpfs".
I'll fix it in next posting.
Thank you.
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