Re: [PATCH] fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall

[Vitaly Lipatov <lav@xxxxxxxxxxx>]

Jeff Layton писал 15.11.17 16:17:
> From: Jeff Layton <jlayton@xxxxxxxxxx>
>
> Currently, we're capping the values too low in the F_GETLK64 case. The
> fields in that structure are 64-bit values, so we shouldn't need to any
> sort of fixup there.
>
> Make sure we check that assumption at build time in the future however
> by ensuring that the sizes we're copying will fit.
Nice fix.
The only question I do not know answer is what is purpose of 
COMPAT_LOFF_T_MAX macro?

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Виталий Липатов,
Etersoft