Messages in this thread | | | From | "NeilBrown" <> | Subject | Re: [PATCH] iversion: update comments with info about atime updates | Date | Tue, 23 Aug 2022 21:38:07 +1000 |
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On Tue, 23 Aug 2022, Jeff Layton wrote: > So, we can refer to that and simply say: > > "If the function updates the mtime or ctime on the inode, then the > i_version should be incremented. If only the atime is being updated, > then the i_version should not be incremented. The exception to this rule > is explicit atime updates via utimes() or similar mechanism, which > should result in the i_version being incremented."
Is that exception needed? utimes() updates ctime.
https://man7.org/linux/man-pages/man2/utimes.2.html
doesn't say that, but
https://pubs.opengroup.org/onlinepubs/007904875/functions/utimes.html
does, as does the code.
NeilBrown
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