Re: [PATCH][RFC] introduce a mmap MAP_DONTEXPAND flag

From: Andi Kleen
Date: Thu Mar 11 2004 - 10:00:36 EST


Bart Oldeman <bartoldeman@xxxxxxxxxxxxxxxxxxxxx> writes:

> return -EPERM;
> --- include/asm-i386/mman.h~ Sat Oct 25 19:42:58 2003
> +++ include/asm-i386/mman.h Thu Mar 11 13:37:33 2004
> @@ -22,6 +22,7 @@
> #define MAP_NORESERVE 0x4000 /* don't check for reservations */
> #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
> #define MAP_NONBLOCK 0x10000 /* do not block on IO */
> +#define MAP_DONTEXPAND 0x20000 /* do not allow mremap to expand */

*always* when you change something in asm-i386 check if other architectures
need changing too. Your patch would break compilation for everybody !i386

-Andi

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