diff options
Diffstat (limited to 'drivers/base/memory.c')
| -rw-r--r-- | drivers/base/memory.c | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c index acd5814ed20e..94e37a56df6f 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -121,27 +121,13 @@ static ssize_t phys_index_show(struct device *dev, } /* - * Show whether the section of memory is likely to be hot-removable + * Legacy interface that we cannot remove. Always indicate "removable" + * with CONFIG_MEMORY_HOTREMOVE - bad heuristic. */ static ssize_t removable_show(struct device *dev, struct device_attribute *attr, char *buf) { - unsigned long i, pfn; - int ret = 1; - struct memory_block *mem = to_memory_block(dev); - - if (mem->state != MEM_ONLINE) - goto out; - - for (i = 0; i < sections_per_block; i++) { - if (!present_section_nr(mem->start_section_nr + i)) - continue; - pfn = section_nr_to_pfn(mem->start_section_nr + i); - ret &= is_mem_section_removable(pfn, PAGES_PER_SECTION); - } - -out: - return sprintf(buf, "%d\n", ret); + return sprintf(buf, "%d\n", (int)IS_ENABLED(CONFIG_MEMORY_HOTREMOVE)); } /* |