Re: [PATCH] Limit sendfile() to 2^31-PAGE_CACHE_SIZE bytes without error

["H. Peter Anvin" <hpa@zytor.com>]

Ulrich Drepper wrote:
> Linus Torvalds wrote:
>
> > Ok, this patch looks ok, if it's confirmed to unbreak apache.
> Yes, sounds reasonable.  But I don't think that, as Peter suggested in
> another mail, that glibc should automatically wrap the syscall to
> provide support for  larger sizes.  The caller probably should know when
> a transfer was cut short.
Agreed; that's exactly what a short return in supposed to do.  Since a 
short return is compatible with the defined API, that's not a problem.
However, this patch only addresses sendfile(), and this is apparently a 
much more pervasive problem.  We need something similar for all the I/O 
system calls that are affected by this particular issue.
	-hpa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/