Commit 2544a873 authored by Ingo Molnar's avatar Ingo Molnar

revert: "x86: ioremap(), extend check to all RAM pages"

Vegard Nossum reported a large (150 seconds) boot delay during bootup,
and bisected it to "x86: ioremap(), extend check to all RAM pages"
(commit bdd3cee2). Revert this commit for now.
Bisected-by: default avatarVegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent a4c863f4
......@@ -148,8 +148,8 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
/*
* Don't allow anybody to remap normal RAM that we're using..
*/
for (pfn = phys_addr >> PAGE_SHIFT;
(pfn << PAGE_SHIFT) < last_addr; pfn++) {
for (pfn = phys_addr >> PAGE_SHIFT; pfn < max_pfn_mapped &&
(pfn << PAGE_SHIFT) < last_addr; pfn++) {
int is_ram = page_is_ram(pfn);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment