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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:26:50 -0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:26:50 -0400
commit12e04ffcd93b25dfd726d46338c2ee7d23de556e (patch)
treef91479a62805619168994fd3ee55e3ffa23fc24e /mm/sparse.c
parent9eff37a8713939f218ab8bf0dc93f1d67af7b8b4 (diff)
parentf722406faae2d073cc1d01063d1123c35425939e (diff)
Merge tag 'v3.10-rc1' into stable/for-linus-3.10
Linux 3.10-rc1 * tag 'v3.10-rc1': (12273 commits) Linux 3.10-rc1 [SCSI] qla2xxx: Update firmware link in Kconfig file. [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type [SCSI] pm80xx: thermal, sas controller config and error handling update [SCSI] pm80xx: NCQ error handling changes [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers [SCSI] pm80xx: Changed module name and debug messages update [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files [SCSI] pm80xx: MSI-X implementation for using 64 interrupts [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve [SCSI] pm80xx: Multiple inbound/outbound queue configuration [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC [SCSI] lpfc: fix up Kconfig dependencies [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd dm cache: set config value dm cache: move config fns dm thin: generate event when metadata threshold passed ...
Diffstat (limited to 'mm/sparse.c')
-rw-r--r--mm/sparse.c82
1 files changed, 47 insertions, 35 deletions
diff --git a/mm/sparse.c b/mm/sparse.c
index 7ca6dc84794..1c91f0d3f6a 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -615,12 +615,20 @@ static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid,
}
static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages)
{
- vmemmap_free(memmap, nr_pages);
+ unsigned long start = (unsigned long)memmap;
+ unsigned long end = (unsigned long)(memmap + nr_pages);
+
+ vmemmap_free(start, end);
}
+#ifdef CONFIG_MEMORY_HOTREMOVE
static void free_map_bootmem(struct page *memmap, unsigned long nr_pages)
{
- vmemmap_free(memmap, nr_pages);
+ unsigned long start = (unsigned long)memmap;
+ unsigned long end = (unsigned long)(memmap + nr_pages);
+
+ vmemmap_free(start, end);
}
+#endif /* CONFIG_MEMORY_HOTREMOVE */
#else
static struct page *__kmalloc_section_memmap(unsigned long nr_pages)
{
@@ -658,6 +666,7 @@ static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages)
get_order(sizeof(struct page) * nr_pages));
}
+#ifdef CONFIG_MEMORY_HOTREMOVE
static void free_map_bootmem(struct page *memmap, unsigned long nr_pages)
{
unsigned long maps_section_nr, removing_section_nr, i;
@@ -684,40 +693,9 @@ static void free_map_bootmem(struct page *memmap, unsigned long nr_pages)
put_page_bootmem(page);
}
}
+#endif /* CONFIG_MEMORY_HOTREMOVE */
#endif /* CONFIG_SPARSEMEM_VMEMMAP */
-static void free_section_usemap(struct page *memmap, unsigned long *usemap)
-{
- struct page *usemap_page;
- unsigned long nr_pages;
-
- if (!usemap)
- return;
-
- usemap_page = virt_to_page(usemap);
- /*
- * Check to see if allocation came from hot-plug-add
- */
- if (PageSlab(usemap_page) || PageCompound(usemap_page)) {
- kfree(usemap);
- if (memmap)
- __kfree_section_memmap(memmap, PAGES_PER_SECTION);
- return;
- }
-
- /*
- * The usemap came from bootmem. This is packed with other usemaps
- * on the section which has pgdat at boot time. Just keep it as is now.
- */
-
- if (memmap) {
- nr_pages = PAGE_ALIGN(PAGES_PER_SECTION * sizeof(struct page))
- >> PAGE_SHIFT;
-
- free_map_bootmem(memmap, nr_pages);
- }
-}
-
/*
* returns the number of sections whose mem_maps were properly
* set. If this is <=0, then that means that the passed-in
@@ -794,6 +772,39 @@ static inline void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
}
#endif
+#ifdef CONFIG_MEMORY_HOTREMOVE
+static void free_section_usemap(struct page *memmap, unsigned long *usemap)
+{
+ struct page *usemap_page;
+ unsigned long nr_pages;
+
+ if (!usemap)
+ return;
+
+ usemap_page = virt_to_page(usemap);
+ /*
+ * Check to see if allocation came from hot-plug-add
+ */
+ if (PageSlab(usemap_page) || PageCompound(usemap_page)) {
+ kfree(usemap);
+ if (memmap)
+ __kfree_section_memmap(memmap, PAGES_PER_SECTION);
+ return;
+ }
+
+ /*
+ * The usemap came from bootmem. This is packed with other usemaps
+ * on the section which has pgdat at boot time. Just keep it as is now.
+ */
+
+ if (memmap) {
+ nr_pages = PAGE_ALIGN(PAGES_PER_SECTION * sizeof(struct page))
+ >> PAGE_SHIFT;
+
+ free_map_bootmem(memmap, nr_pages);
+ }
+}
+
void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
{
struct page *memmap = NULL;
@@ -813,4 +824,5 @@ void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
clear_hwpoisoned_pages(memmap, PAGES_PER_SECTION);
free_section_usemap(memmap, usemap);
}
-#endif
+#endif /* CONFIG_MEMORY_HOTREMOVE */
+#endif /* CONFIG_MEMORY_HOTPLUG */