From 869e5101728fe2f307f0a3c3cf599c184f81f0ee Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Sun, 6 May 2007 14:50:09 -0700 Subject: [PATCH] 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 Cc: Kyle McMartin Cc: Grant Grundler Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/parisc/kernel/sys_parisc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 512642d8f707..6fed0803c593 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -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; -- 2.30.2