Fw: [Lhms-devel] Making hotremovable attribute with memory section[4/4]

Fw: [Lhms-devel] Making hotremovable attribute with memory section[4/4]

[Yasunori Goto]

Forwarded by Yasunori Goto <ygoto@us.fujitsu.com>
----------------------- Original Message -----------------------
 From:    Yasunori Goto <ygoto@us.fujitsu.com>
 To:      lhms-devel@lists.sourceforge.net
 Date:    Mon, 16 Aug 2004 14:37:34 -0700
 Subject: [Lhms-devel] Making hotremovable attribute with memory section[4/4]
----

This is just for test removable/un-removable section.

Note:
  hot-removable or un-removable attribute will be arch/platform
  dependent.
  

---

 hotremovable-goto/mm/nonlinear.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletion(-)

diff -puN mm/nonlinear.c~test_sec_removable mm/nonlinear.c
--- hotremovable/mm/nonlinear.c~test_sec_removable	Fri Aug 13 16:24:52 2004
+++ hotremovable-goto/mm/nonlinear.c	Fri Aug 13 16:24:52 2004
@@ -41,11 +41,14 @@ setup_memsections(void)
 	for (index = 0; index < NR_SECTIONS; index++) {
 		mem_section[index].phys_section = INVALID_SECTION;
 		mem_section[index].mem_map = NULL;
+		mem_section[index].flags = 0;
 	}
 	for (index = 0; index < NR_PHYS_SECTIONS; index++)
 		phys_section[index] = INVALID_PHYS_SECTION;
 }
 
+extern unsigned int highmem_start_page;
+
 void
 alloc_memsections(unsigned long start_pfn,
 		  unsigned long start_phys_pfn,
@@ -64,7 +67,10 @@ alloc_memsections(unsigned long start_pf
 	physid = pfn_to_section(start_phys_pfn);
 	for (; index < limit; index++, physid++) {
 		mem_section[index].phys_section = physid;
-		printk("set mem_section[%d].phys_section: %d\n", index, mem_section[index].phys_section);
+		if (section_to_pfn(index) > highmem_start_page)
+			mem_section[index].flags = SECTION_REMOVABLE;
+
+		printk("set mem_section[%d].phys_section: %d :flags=%02x\n", index, mem_section[index].phys_section);
 	}
 
 	index = pfn_to_section(start_phys_pfn);
_

-- 
Yasunori Goto <ygoto at us.fujitsu.com>




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--------------------- Original Message Ends --------------------

-- 
Yasunori Goto <ygoto at us.fujitsu.com>