Davide Libenzi wrote:
The following patch implements the sys_brk2() syscall, that nothing is other than a sys_brk() with an extra "flags" parameter. This can be used to pass the new MAP_NOZERO bit, to ask the kernel to hand over non-zero pages if possible.
Since programs can get back free()d memory after a malloc(), with the old contents of the memory intact, surely your MAP_NONZERO behavior could be the default for programs that can get away with it? Maybe we could use some magic ELF header, similar to the way non-executable stack is handled? -- Politics is the struggle between those who want to make their country the best in the world, and those who believe it already is. Each group calls the other unpatriotic. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/