Commit 869e5101 authored May 06, 2007 by Benjamin Herrenschmidt Committed by Linus Torvalds May 07, 2007

get_unmapped_area handles MAP_FIXED on parisc

Handle MAP_FIXED in parisc arch_get_unmapped_area(), just return the address.
We might want to also check for possible cache aliasing issues now that we get
called in that case (like ARM or MIPS), leave a comment for the maintainers to
pick up.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent afa37394

arch/parisc/kernel/sys_parisc.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -106,6 +106,11 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
		{
		if (len > TASK_SIZE)
		return -ENOMEM;
		/* Might want to check for cache aliasing issues for MAP_FIXED case
		* like ARM or MIPS ??? --BenH.
		*/
		if (flags & MAP_FIXED)
		return addr;
		if (!addr)
		addr = TASK_UNMAPPED_BASE;