diff options
Diffstat (limited to 'arch/powerpc/mm/mem.c')
-rw-r--r-- | arch/powerpc/mm/mem.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 32dcfc9b0082..81eb96ec13b2 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c | |||
@@ -129,51 +129,6 @@ int __devinit arch_add_memory(int nid, u64 start, u64 size) | |||
129 | return __add_pages(zone, start_pfn, nr_pages); | 129 | return __add_pages(zone, start_pfn, nr_pages); |
130 | } | 130 | } |
131 | 131 | ||
132 | /* | ||
133 | * First pass at this code will check to determine if the remove | ||
134 | * request is within the RMO. Do not allow removal within the RMO. | ||
135 | */ | ||
136 | int __devinit remove_memory(u64 start, u64 size) | ||
137 | { | ||
138 | struct zone *zone; | ||
139 | unsigned long start_pfn, end_pfn, nr_pages; | ||
140 | |||
141 | start_pfn = start >> PAGE_SHIFT; | ||
142 | nr_pages = size >> PAGE_SHIFT; | ||
143 | end_pfn = start_pfn + nr_pages; | ||
144 | |||
145 | printk("%s(): Attempting to remove memoy in range " | ||
146 | "%lx to %lx\n", __func__, start, start+size); | ||
147 | /* | ||
148 | * check for range within RMO | ||
149 | */ | ||
150 | zone = page_zone(pfn_to_page(start_pfn)); | ||
151 | |||
152 | printk("%s(): memory will be removed from " | ||
153 | "the %s zone\n", __func__, zone->name); | ||
154 | |||
155 | /* | ||
156 | * not handling removing memory ranges that | ||
157 | * overlap multiple zones yet | ||
158 | */ | ||
159 | if (end_pfn > (zone->zone_start_pfn + zone->spanned_pages)) | ||
160 | goto overlap; | ||
161 | |||
162 | /* make sure it is NOT in RMO */ | ||
163 | if ((start < lmb.rmo_size) || ((start+size) < lmb.rmo_size)) { | ||
164 | printk("%s(): range to be removed must NOT be in RMO!\n", | ||
165 | __func__); | ||
166 | goto in_rmo; | ||
167 | } | ||
168 | |||
169 | return __remove_pages(zone, start_pfn, nr_pages); | ||
170 | |||
171 | overlap: | ||
172 | printk("%s(): memory range to be removed overlaps " | ||
173 | "multiple zones!!!\n", __func__); | ||
174 | in_rmo: | ||
175 | return -1; | ||
176 | } | ||
177 | #endif /* CONFIG_MEMORY_HOTPLUG */ | 132 | #endif /* CONFIG_MEMORY_HOTPLUG */ |
178 | 133 | ||
179 | void show_mem(void) | 134 | void show_mem(void) |