From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Date: Tue, 24 Apr 2007 15:33:37 +1000 Subject: [PATCH 7/12] get_unmapped_area handles MAP_FIXED on parisc In-Reply-To: <1177392813.924664.32930750763.qpush@grosgo> Message-Id: <20070424053339.D189DDDF0D@ozlabs.org> Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: linux-kernel@vger.kernel.org, Linux Memory Management List-ID: 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 arch/parisc/kernel/sys_parisc.c | 5 +++++ 1 file changed, 5 insertions(+) Index: linux-cell/arch/parisc/kernel/sys_parisc.c =================================================================== --- linux-cell.orig/arch/parisc/kernel/sys_parisc.c 2007-03-22 15:28:05.000000000 +1100 +++ linux-cell/arch/parisc/kernel/sys_parisc.c 2007-03-22 15:29:08.000000000 +1100 @@ -106,6 +106,11 @@ unsigned long arch_get_unmapped_area(str { 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; -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org