[Bug 75431] posix_fadvise(2): wrong param name?

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https://bugzilla.kernel.org/show_bug.cgi?id=75431

Michael Kerrisk <mtk.manpages@xxxxxxxxx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |mtk.manpages@xxxxxxxxx
         Resolution|---                         |CODE_FIX

--- Comment #1 from Michael Kerrisk <mtk.manpages@xxxxxxxxx> ---
(In reply to Eric Siegerman from comment #0)
> In posix_fadvise(2), under "Architecture-specific variants", it says:
>        [Due to register-alignment issues,]
>        ... the call signature of posix_fadvise() shown in
>        the SYNOPSIS would force a register to be wasted as padding between
>        the fd and len arguments.
> 
> Should it say "offset" instead of "len" in the last line of that quoted bit?
> 
> Rationale: the SYNOPSIS shows a call signature of:
>        int posix_fadvise(int fd, off_t offset, off_t len, int advice);
> in which:
>   - fd and len aren't adjacent
>   - it's between a shorter value followed by a longer one that I'd expect
> alignment padding to be needed, and the only pair where that occurs is (fd,
> offset)

The change sounds right to me. I've made it.

> CAVEAT: I'm not familiar with either the syscall or the specific alignment
> issues in question, so my guess about this is just that -- a deduced guess,
> NOT specific knowledge.  So don't make the change on my say-so; please
> verify it first!

I'm going to trust you on this one ;-). I was the one who injected the error in
the first place.

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