Messages in this thread | | | Subject | Re: [PATCH -v6 2/2] Updating ctime and mtime for memory-mapped files | From | Miklos Szeredi <> | Date | Fri, 18 Jan 2008 19:11:47 +0100 |
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> And even in that four-liner, I suspect that the *last* two lines are > actually incorrect: there's no point in updating the file time when the > page *becomes* dirty,
Actually all four lines do that. The first two for a write access on a present, read-only pte, the other two for a write on a non-present pte.
> we should update the file time when it is marked > clean, and "msync(MS_SYNC)" should update it as part of *that*.
That would need a new page flag (PG_mmap_dirty?). Do we have one available?
Miklos
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