mm: convert totalram_pages and totalhigh_pages variables to atomic
totalram_pages and totalhigh_pages are made static inline function. Main motivation was that managed_page_count_lock handling was complicating things. It was discussed in length here, https://lore.kernel.org/patchwork/patch/995739/#1181785 So it seemes better to remove the lock and convert variables to atomic, with preventing poteintial store-to-read tearing as a bonus. [akpm@linux-foundation.org: coding style fixes] Link: http://lkml.kernel.org/r/1542090790-21750-4-git-send-email-arunks@codeaurora.org Signed-off-by: Arun KS <arunks@codeaurora.org> Suggested-by: Michal Hocko <mhocko@suse.com> Suggested-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
9705bea5f8
commit
ca79b0c211
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@ -71,7 +71,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
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ClearPageReserved(virt_to_page(start));
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init_page_count(virt_to_page(start));
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free_page(start);
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totalram_pages++;
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totalram_pages_inc();
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}
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}
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#endif
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@ -88,7 +88,7 @@ void free_initmem(void)
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ClearPageReserved(virt_to_page(addr));
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init_page_count(virt_to_page(addr));
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free_page(addr);
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totalram_pages++;
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totalram_pages_inc();
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addr += PAGE_SIZE;
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}
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@ -208,7 +208,7 @@ static long cmm_alloc_pages(long nr)
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pa->page[pa->index++] = addr;
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loaned_pages++;
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totalram_pages--;
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totalram_pages_dec();
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spin_unlock(&cmm_lock);
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nr--;
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}
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@ -247,7 +247,7 @@ static long cmm_free_pages(long nr)
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free_page(addr);
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loaned_pages--;
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nr--;
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totalram_pages++;
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totalram_pages_inc();
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}
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spin_unlock(&cmm_lock);
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cmm_dbg("End request with %ld pages unfulfilled\n", nr);
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@ -291,7 +291,7 @@ static void cmm_get_mpp(void)
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int rc;
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struct hvcall_mpp_data mpp_data;
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signed long active_pages_target, page_loan_request, target;
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signed long total_pages = totalram_pages + loaned_pages;
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signed long total_pages = totalram_pages() + loaned_pages;
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signed long min_mem_pages = (min_mem_mb * 1024 * 1024) / PAGE_SIZE;
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rc = h_get_mpp(&mpp_data);
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@ -322,7 +322,7 @@ static void cmm_get_mpp(void)
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cmm_dbg("delta = %ld, loaned = %lu, target = %lu, oom = %lu, totalram = %lu\n",
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page_loan_request, loaned_pages, loaned_pages_target,
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oom_freed_pages, totalram_pages);
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oom_freed_pages, totalram_pages());
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}
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static struct notifier_block cmm_oom_nb = {
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@ -581,7 +581,7 @@ static int cmm_mem_going_offline(void *arg)
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free_page(pa_curr->page[idx]);
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freed++;
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loaned_pages--;
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totalram_pages++;
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totalram_pages_inc();
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pa_curr->page[idx] = pa_last->page[--pa_last->index];
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if (pa_last->index == 0) {
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if (pa_curr == pa_last)
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@ -59,7 +59,7 @@ static void __init setup_zero_pages(void)
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order = 7;
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/* Limit number of empty zero pages for small memory sizes */
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while (order > 2 && (totalram_pages >> 10) < (1UL << order))
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while (order > 2 && (totalram_pages() >> 10) < (1UL << order))
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order--;
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empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
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@ -51,7 +51,7 @@ void __init mem_init(void)
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/* this will put all low memory onto the freelists */
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memblock_free_all();
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max_low_pfn = totalram_pages;
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max_low_pfn = totalram_pages();
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max_pfn = max_low_pfn;
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mem_init_print_info(NULL);
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kmalloc_ok = 1;
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@ -434,7 +434,7 @@ static ssize_t microcode_write(struct file *file, const char __user *buf,
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size_t len, loff_t *ppos)
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{
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ssize_t ret = -EINVAL;
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unsigned long nr_pages = totalram_pages;
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unsigned long nr_pages = totalram_pages();
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if ((len >> PAGE_SHIFT) > nr_pages) {
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pr_err("too much data (max %ld pages)\n", nr_pages);
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@ -115,9 +115,9 @@ static int agp_find_max(void)
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long memory, index, result;
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#if PAGE_SHIFT < 20
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memory = totalram_pages >> (20 - PAGE_SHIFT);
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memory = totalram_pages() >> (20 - PAGE_SHIFT);
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#else
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memory = totalram_pages << (PAGE_SHIFT - 20);
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memory = totalram_pages() << (PAGE_SHIFT - 20);
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#endif
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index = 1;
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@ -2559,7 +2559,7 @@ static int i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
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* If there's no chance of allocating enough pages for the whole
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* object, bail early.
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*/
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if (page_count > totalram_pages)
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if (page_count > totalram_pages())
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return -ENOMEM;
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st = kmalloc(sizeof(*st), GFP_KERNEL);
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@ -170,7 +170,7 @@ static int igt_ppgtt_alloc(void *arg)
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* This should ensure that we do not run into the oomkiller during
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* the test and take down the machine wilfully.
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*/
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limit = totalram_pages << PAGE_SHIFT;
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limit = totalram_pages() << PAGE_SHIFT;
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limit = min(ppgtt->vm.total, limit);
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/* Check we can allocate the entire range */
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@ -1244,7 +1244,7 @@ static int exercise_mock(struct drm_i915_private *i915,
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u64 hole_start, u64 hole_end,
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unsigned long end_time))
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{
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const u64 limit = totalram_pages << PAGE_SHIFT;
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const u64 limit = totalram_pages() << PAGE_SHIFT;
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struct i915_gem_context *ctx;
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struct i915_hw_ppgtt *ppgtt;
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IGT_TIMEOUT(end_time);
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@ -1090,7 +1090,7 @@ static void process_info(struct hv_dynmem_device *dm, struct dm_info_msg *msg)
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static unsigned long compute_balloon_floor(void)
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{
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unsigned long min_pages;
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unsigned long nr_pages = totalram_pages;
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unsigned long nr_pages = totalram_pages();
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#define MB2PAGES(mb) ((mb) << (20 - PAGE_SHIFT))
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/* Simple continuous piecewiese linear function:
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* max MiB -> min MiB gradient
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@ -1887,7 +1887,7 @@ static int __init dm_bufio_init(void)
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dm_bufio_allocated_vmalloc = 0;
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dm_bufio_current_allocated = 0;
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mem = (__u64)mult_frac(totalram_pages - totalhigh_pages,
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mem = (__u64)mult_frac(totalram_pages() - totalhigh_pages(),
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DM_BUFIO_MEMORY_PERCENT, 100) << PAGE_SHIFT;
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if (mem > ULONG_MAX)
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@ -2158,7 +2158,7 @@ static int crypt_wipe_key(struct crypt_config *cc)
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static void crypt_calculate_pages_per_client(void)
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{
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unsigned long pages = (totalram_pages - totalhigh_pages) * DM_CRYPT_MEMORY_PERCENT / 100;
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unsigned long pages = (totalram_pages() - totalhigh_pages()) * DM_CRYPT_MEMORY_PERCENT / 100;
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if (!dm_crypt_clients_n)
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return;
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@ -2843,7 +2843,7 @@ static int create_journal(struct dm_integrity_c *ic, char **error)
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journal_pages = roundup((__u64)ic->journal_sections * ic->journal_section_sectors,
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PAGE_SIZE >> SECTOR_SHIFT) >> (PAGE_SHIFT - SECTOR_SHIFT);
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journal_desc_size = journal_pages * sizeof(struct page_list);
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if (journal_pages >= totalram_pages - totalhigh_pages || journal_desc_size > ULONG_MAX) {
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if (journal_pages >= totalram_pages() - totalhigh_pages() || journal_desc_size > ULONG_MAX) {
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*error = "Journal doesn't fit into memory";
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r = -ENOMEM;
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goto bad;
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@ -85,7 +85,7 @@ static bool __check_shared_memory(size_t alloc_size)
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a = shared_memory_amount + alloc_size;
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if (a < shared_memory_amount)
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return false;
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if (a >> PAGE_SHIFT > totalram_pages / DM_STATS_MEMORY_FACTOR)
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if (a >> PAGE_SHIFT > totalram_pages() / DM_STATS_MEMORY_FACTOR)
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return false;
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#ifdef CONFIG_MMU
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if (a > (VMALLOC_END - VMALLOC_START) / DM_STATS_VMALLOC_FACTOR)
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@ -855,7 +855,7 @@ static int mtk_vpu_probe(struct platform_device *pdev)
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/* Set PTCM to 96K and DTCM to 32K */
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vpu_cfg_writel(vpu, 0x2, VPU_TCM_CFG);
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vpu->enable_4GB = !!(totalram_pages > (SZ_2G >> PAGE_SHIFT));
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vpu->enable_4GB = !!(totalram_pages() > (SZ_2G >> PAGE_SHIFT));
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dev_info(dev, "4GB mode %u\n", vpu->enable_4GB);
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if (vpu->enable_4GB) {
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@ -570,7 +570,7 @@ static int vmballoon_send_get_target(struct vmballoon *b)
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unsigned long status;
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unsigned long limit;
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limit = totalram_pages;
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limit = totalram_pages();
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/* Ensure limit fits in 32-bits */
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if (limit != (u32)limit)
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@ -1251,7 +1251,7 @@ ccio_ioc_init(struct ioc *ioc)
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** Hot-Plug/Removal of PCI cards. (aka PCI OLARD).
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*/
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iova_space_size = (u32) (totalram_pages / count_parisc_driver(&ccio_driver));
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iova_space_size = (u32) (totalram_pages() / count_parisc_driver(&ccio_driver));
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/* limit IOVA space size to 1MB-1GB */
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DBG_INIT("%s() hpa 0x%p mem %luMB IOV %dMB (%d bits)\n",
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__func__, ioc->ioc_regs,
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(unsigned long) totalram_pages >> (20 - PAGE_SHIFT),
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(unsigned long) totalram_pages() >> (20 - PAGE_SHIFT),
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iova_space_size>>20,
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iov_order + PAGE_SHIFT);
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@ -1414,7 +1414,7 @@ sba_ioc_init(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
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** for DMA hints - ergo only 30 bits max.
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*/
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iova_space_size = (u32) (totalram_pages/global_ioc_cnt);
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iova_space_size = (u32) (totalram_pages()/global_ioc_cnt);
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/* limit IOVA space size to 1MB-1GB */
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if (iova_space_size < (1 << (20 - PAGE_SHIFT))) {
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DBG_INIT("%s() hpa 0x%lx mem %ldMB IOV %dMB (%d bits)\n",
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__func__,
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ioc->ioc_hpa,
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(unsigned long) totalram_pages >> (20 - PAGE_SHIFT),
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(unsigned long) totalram_pages() >> (20 - PAGE_SHIFT),
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iova_space_size>>20,
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iov_order + PAGE_SHIFT);
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@ -110,7 +110,7 @@ static int ion_system_heap_allocate(struct ion_heap *heap,
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unsigned long size_remaining = PAGE_ALIGN(size);
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unsigned int max_order = orders[0];
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if (size / PAGE_SIZE > totalram_pages / 2)
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if (size / PAGE_SIZE > totalram_pages() / 2)
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return -ENOMEM;
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INIT_LIST_HEAD(&pages);
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bool reset_timer = false;
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if (xen_selfballooning_enabled) {
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cur_pages = totalram_pages;
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cur_pages = totalram_pages();
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tgt_pages = cur_pages; /* default is no change */
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goal_pages = vm_memory_committed() +
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totalreserve_pages +
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if (tgt_pages < floor_pages)
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tgt_pages = floor_pages;
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balloon_set_new_target(tgt_pages +
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balloon_stats.current_pages - totalram_pages);
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balloon_stats.current_pages - totalram_pages());
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reset_timer = true;
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}
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#ifdef CONFIG_FRONTSWAP
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* much more reliably and response faster in some cases.
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*/
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if (!selfballoon_reserved_mb) {
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reserve_pages = totalram_pages / 10;
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reserve_pages = totalram_pages() / 10;
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selfballoon_reserved_mb = PAGES2MB(reserve_pages);
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}
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schedule_delayed_work(&selfballoon_worker, selfballoon_interval * HZ);
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@ -810,7 +810,7 @@ static inline int default_congestion_kb(void)
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* This allows larger machines to have larger/more transfers.
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* Limit the default to 256M
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*/
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congestion_kb = (16*int_sqrt(totalram_pages)) << (PAGE_SHIFT-10);
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congestion_kb = (16*int_sqrt(totalram_pages())) << (PAGE_SHIFT-10);
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if (congestion_kb > 256*1024)
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congestion_kb = 256*1024;
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@ -380,7 +380,7 @@ void __init files_init(void)
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void __init files_maxfiles_init(void)
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{
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unsigned long n;
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unsigned long nr_pages = totalram_pages;
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unsigned long nr_pages = totalram_pages();
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unsigned long memreserve = (nr_pages - nr_free_pages()) * 3/2;
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memreserve = min(memreserve, nr_pages - 1);
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@ -824,7 +824,7 @@ static const struct super_operations fuse_super_operations = {
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static void sanitize_global_limit(unsigned *limit)
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{
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if (*limit == 0)
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*limit = ((totalram_pages << PAGE_SHIFT) >> 13) /
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*limit = ((totalram_pages() << PAGE_SHIFT) >> 13) /
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sizeof(struct fuse_req);
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if (*limit >= 1 << 16)
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@ -2121,7 +2121,7 @@ int __init nfs_init_writepagecache(void)
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* This allows larger machines to have larger/more transfers.
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* Limit the default to 256M
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*/
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nfs_congestion_kb = (16*int_sqrt(totalram_pages)) << (PAGE_SHIFT-10);
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nfs_congestion_kb = (16*int_sqrt(totalram_pages())) << (PAGE_SHIFT-10);
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if (nfs_congestion_kb > 256*1024)
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nfs_congestion_kb = 256*1024;
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@ -99,7 +99,7 @@ static unsigned int
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nfsd_cache_size_limit(void)
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{
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unsigned int limit;
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unsigned long low_pages = totalram_pages - totalhigh_pages;
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unsigned long low_pages = totalram_pages() - totalhigh_pages();
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limit = (16 * int_sqrt(low_pages)) << (PAGE_SHIFT-10);
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return min_t(unsigned int, limit, 256*1024);
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@ -47,7 +47,7 @@ static inline void *__ntfs_malloc(unsigned long size, gfp_t gfp_mask)
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return kmalloc(PAGE_SIZE, gfp_mask & ~__GFP_HIGHMEM);
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/* return (void *)__get_free_page(gfp_mask); */
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}
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if (likely((size >> PAGE_SHIFT) < totalram_pages))
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if (likely((size >> PAGE_SHIFT) < totalram_pages()))
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return __vmalloc(size, gfp_mask, PAGE_KERNEL);
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return NULL;
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}
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@ -530,7 +530,7 @@ static const struct file_operations proc_lstats_operations = {
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static int proc_oom_score(struct seq_file *m, struct pid_namespace *ns,
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struct pid *pid, struct task_struct *task)
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{
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unsigned long totalpages = totalram_pages + total_swap_pages;
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unsigned long totalpages = totalram_pages() + total_swap_pages;
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unsigned long points = 0;
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points = oom_badness(task, NULL, NULL, totalpages) *
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@ -36,7 +36,31 @@ static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
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/* declarations for linux/mm/highmem.c */
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unsigned int nr_free_highpages(void);
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extern unsigned long totalhigh_pages;
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extern atomic_long_t _totalhigh_pages;
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static inline unsigned long totalhigh_pages(void)
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{
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return (unsigned long)atomic_long_read(&_totalhigh_pages);
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}
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static inline void totalhigh_pages_inc(void)
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{
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atomic_long_inc(&_totalhigh_pages);
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}
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static inline void totalhigh_pages_dec(void)
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{
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atomic_long_dec(&_totalhigh_pages);
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}
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static inline void totalhigh_pages_add(long count)
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{
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atomic_long_add(count, &_totalhigh_pages);
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}
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static inline void totalhigh_pages_set(long val)
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{
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atomic_long_set(&_totalhigh_pages, val);
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}
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void kmap_flush_unused(void);
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@ -51,7 +75,7 @@ static inline struct page *kmap_to_page(void *addr)
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return virt_to_page(addr);
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}
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#define totalhigh_pages 0UL
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static inline unsigned long totalhigh_pages(void) { return 0UL; }
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#ifndef ARCH_HAS_KMAP
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static inline void *kmap(struct page *page)
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@ -48,7 +48,32 @@ static inline void set_max_mapnr(unsigned long limit)
|
|||
static inline void set_max_mapnr(unsigned long limit) { }
|
||||
#endif
|
||||
|
||||
extern unsigned long totalram_pages;
|
||||
extern atomic_long_t _totalram_pages;
|
||||
static inline unsigned long totalram_pages(void)
|
||||
{
|
||||
return (unsigned long)atomic_long_read(&_totalram_pages);
|
||||
}
|
||||
|
||||
static inline void totalram_pages_inc(void)
|
||||
{
|
||||
atomic_long_inc(&_totalram_pages);
|
||||
}
|
||||
|
||||
static inline void totalram_pages_dec(void)
|
||||
{
|
||||
atomic_long_dec(&_totalram_pages);
|
||||
}
|
||||
|
||||
static inline void totalram_pages_add(long count)
|
||||
{
|
||||
atomic_long_add(count, &_totalram_pages);
|
||||
}
|
||||
|
||||
static inline void totalram_pages_set(long val)
|
||||
{
|
||||
atomic_long_set(&_totalram_pages, val);
|
||||
}
|
||||
|
||||
extern void * high_memory;
|
||||
extern int page_cluster;
|
||||
|
||||
|
|
|
@ -310,7 +310,6 @@ void workingset_update_node(struct xa_node *node);
|
|||
} while (0)
|
||||
|
||||
/* linux/mm/page_alloc.c */
|
||||
extern unsigned long totalram_pages;
|
||||
extern unsigned long totalreserve_pages;
|
||||
extern unsigned long nr_free_buffer_pages(void);
|
||||
extern unsigned long nr_free_pagecache_pages(void);
|
||||
|
|
|
@ -744,7 +744,7 @@ void __init __weak arch_task_cache_init(void) { }
|
|||
static void set_max_threads(unsigned int max_threads_suggested)
|
||||
{
|
||||
u64 threads;
|
||||
unsigned long nr_pages = totalram_pages;
|
||||
unsigned long nr_pages = totalram_pages();
|
||||
|
||||
/*
|
||||
* The number of threads shall be limited such that the thread
|
||||
|
|
|
@ -152,7 +152,7 @@ int sanity_check_segment_list(struct kimage *image)
|
|||
int i;
|
||||
unsigned long nr_segments = image->nr_segments;
|
||||
unsigned long total_pages = 0;
|
||||
unsigned long nr_pages = totalram_pages;
|
||||
unsigned long nr_pages = totalram_pages();
|
||||
|
||||
/*
|
||||
* Verify we have good destination addresses. The caller is
|
||||
|
|
|
@ -105,7 +105,7 @@ unsigned long image_size;
|
|||
|
||||
void __init hibernate_image_size_init(void)
|
||||
{
|
||||
image_size = ((totalram_pages * 2) / 5) * PAGE_SIZE;
|
||||
image_size = ((totalram_pages() * 2) / 5) * PAGE_SIZE;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
@ -105,9 +105,8 @@ static inline wait_queue_head_t *get_pkmap_wait_queue_head(unsigned int color)
|
|||
}
|
||||
#endif
|
||||
|
||||
unsigned long totalhigh_pages __read_mostly;
|
||||
EXPORT_SYMBOL(totalhigh_pages);
|
||||
|
||||
atomic_long_t _totalhigh_pages __read_mostly;
|
||||
EXPORT_SYMBOL(_totalhigh_pages);
|
||||
|
||||
EXPORT_PER_CPU_SYMBOL(__kmap_atomic_idx);
|
||||
|
||||
|
|
|
@ -420,7 +420,7 @@ static int __init hugepage_init(void)
|
|||
* where the extra memory used could hurt more than TLB overhead
|
||||
* is likely to save. The admin can still enable it through /sys.
|
||||
*/
|
||||
if (totalram_pages < (512 << (20 - PAGE_SHIFT))) {
|
||||
if (totalram_pages() < (512 << (20 - PAGE_SHIFT))) {
|
||||
transparent_hugepage_flags = 0;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
@ -237,7 +237,7 @@ void quarantine_reduce(void)
|
|||
* Update quarantine size in case of hotplug. Allocate a fraction of
|
||||
* the installed memory to quarantine minus per-cpu queue limits.
|
||||
*/
|
||||
total_size = (READ_ONCE(totalram_pages) << PAGE_SHIFT) /
|
||||
total_size = (totalram_pages() << PAGE_SHIFT) /
|
||||
QUARANTINE_FRACTION;
|
||||
percpu_quarantines = QUARANTINE_PERCPU_SIZE * num_online_cpus();
|
||||
new_quarantine_size = (total_size < percpu_quarantines) ?
|
||||
|
|
|
@ -1576,7 +1576,7 @@ void __init __memblock_free_late(phys_addr_t base, phys_addr_t size)
|
|||
|
||||
for (; cursor < end; cursor++) {
|
||||
memblock_free_pages(pfn_to_page(cursor), cursor, 0);
|
||||
totalram_pages++;
|
||||
totalram_pages_inc();
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -1978,7 +1978,7 @@ unsigned long __init memblock_free_all(void)
|
|||
reset_all_zones_managed_pages();
|
||||
|
||||
pages = free_low_memory_core_early();
|
||||
totalram_pages += pages;
|
||||
totalram_pages_add(pages);
|
||||
|
||||
return pages;
|
||||
}
|
||||
|
|
|
@ -146,7 +146,7 @@ static void __meminit mm_compute_batch(void)
|
|||
s32 batch = max_t(s32, nr*2, 32);
|
||||
|
||||
/* batch size set to 0.4% of (total memory/#cpus), or max int32 */
|
||||
memsized_batch = min_t(u64, (totalram_pages/nr)/256, 0x7fffffff);
|
||||
memsized_batch = min_t(u64, (totalram_pages()/nr)/256, 0x7fffffff);
|
||||
|
||||
vm_committed_as_batch = max_t(s32, memsized_batch, batch);
|
||||
}
|
||||
|
|
|
@ -269,7 +269,7 @@ static enum oom_constraint constrained_alloc(struct oom_control *oc)
|
|||
}
|
||||
|
||||
/* Default to all available memory */
|
||||
oc->totalpages = totalram_pages + total_swap_pages;
|
||||
oc->totalpages = totalram_pages() + total_swap_pages;
|
||||
|
||||
if (!IS_ENABLED(CONFIG_NUMA))
|
||||
return CONSTRAINT_NONE;
|
||||
|
|
|
@ -16,6 +16,7 @@
|
|||
|
||||
#include <linux/stddef.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/highmem.h>
|
||||
#include <linux/swap.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/pagemap.h>
|
||||
|
@ -124,7 +125,8 @@ EXPORT_SYMBOL(node_states);
|
|||
/* Protect totalram_pages and zone->managed_pages */
|
||||
static DEFINE_SPINLOCK(managed_page_count_lock);
|
||||
|
||||
unsigned long totalram_pages __read_mostly;
|
||||
atomic_long_t _totalram_pages __read_mostly;
|
||||
EXPORT_SYMBOL(_totalram_pages);
|
||||
unsigned long totalreserve_pages __read_mostly;
|
||||
unsigned long totalcma_pages __read_mostly;
|
||||
|
||||
|
@ -4747,11 +4749,11 @@ EXPORT_SYMBOL_GPL(si_mem_available);
|
|||
|
||||
void si_meminfo(struct sysinfo *val)
|
||||
{
|
||||
val->totalram = totalram_pages;
|
||||
val->totalram = totalram_pages();
|
||||
val->sharedram = global_node_page_state(NR_SHMEM);
|
||||
val->freeram = global_zone_page_state(NR_FREE_PAGES);
|
||||
val->bufferram = nr_blockdev_pages();
|
||||
val->totalhigh = totalhigh_pages;
|
||||
val->totalhigh = totalhigh_pages();
|
||||
val->freehigh = nr_free_highpages();
|
||||
val->mem_unit = PAGE_SIZE;
|
||||
}
|
||||
|
@ -7077,10 +7079,10 @@ void adjust_managed_page_count(struct page *page, long count)
|
|||
{
|
||||
spin_lock(&managed_page_count_lock);
|
||||
atomic_long_add(count, &page_zone(page)->managed_pages);
|
||||
totalram_pages += count;
|
||||
totalram_pages_add(count);
|
||||
#ifdef CONFIG_HIGHMEM
|
||||
if (PageHighMem(page))
|
||||
totalhigh_pages += count;
|
||||
totalhigh_pages_add(count);
|
||||
#endif
|
||||
spin_unlock(&managed_page_count_lock);
|
||||
}
|
||||
|
@ -7123,9 +7125,9 @@ EXPORT_SYMBOL(free_reserved_area);
|
|||
void free_highmem_page(struct page *page)
|
||||
{
|
||||
__free_reserved_page(page);
|
||||
totalram_pages++;
|
||||
totalram_pages_inc();
|
||||
atomic_long_inc(&page_zone(page)->managed_pages);
|
||||
totalhigh_pages++;
|
||||
totalhigh_pages_inc();
|
||||
}
|
||||
#endif
|
||||
|
||||
|
@ -7174,10 +7176,10 @@ void __init mem_init_print_info(const char *str)
|
|||
physpages << (PAGE_SHIFT - 10),
|
||||
codesize >> 10, datasize >> 10, rosize >> 10,
|
||||
(init_data_size + init_code_size) >> 10, bss_size >> 10,
|
||||
(physpages - totalram_pages - totalcma_pages) << (PAGE_SHIFT - 10),
|
||||
(physpages - totalram_pages() - totalcma_pages) << (PAGE_SHIFT - 10),
|
||||
totalcma_pages << (PAGE_SHIFT - 10),
|
||||
#ifdef CONFIG_HIGHMEM
|
||||
totalhigh_pages << (PAGE_SHIFT - 10),
|
||||
totalhigh_pages() << (PAGE_SHIFT - 10),
|
||||
#endif
|
||||
str ? ", " : "", str ? str : "");
|
||||
}
|
||||
|
|
|
@ -109,13 +109,14 @@ struct shmem_falloc {
|
|||
#ifdef CONFIG_TMPFS
|
||||
static unsigned long shmem_default_max_blocks(void)
|
||||
{
|
||||
return totalram_pages / 2;
|
||||
return totalram_pages() / 2;
|
||||
}
|
||||
|
||||
static unsigned long shmem_default_max_inodes(void)
|
||||
{
|
||||
unsigned long nr_pages = totalram_pages;
|
||||
return min(nr_pages - totalhigh_pages, nr_pages / 2);
|
||||
unsigned long nr_pages = totalram_pages();
|
||||
|
||||
return min(nr_pages - totalhigh_pages(), nr_pages / 2);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
@ -3302,7 +3303,7 @@ static int shmem_parse_options(char *options, struct shmem_sb_info *sbinfo,
|
|||
size = memparse(value,&rest);
|
||||
if (*rest == '%') {
|
||||
size <<= PAGE_SHIFT;
|
||||
size *= totalram_pages;
|
||||
size *= totalram_pages();
|
||||
do_div(size, 100);
|
||||
rest++;
|
||||
}
|
||||
|
|
|
@ -1235,7 +1235,7 @@ void __init kmem_cache_init(void)
|
|||
* page orders on machines with more than 32MB of memory if
|
||||
* not overridden on the command line.
|
||||
*/
|
||||
if (!slab_max_order_set && totalram_pages > (32 << 20) >> PAGE_SHIFT)
|
||||
if (!slab_max_order_set && totalram_pages() > (32 << 20) >> PAGE_SHIFT)
|
||||
slab_max_order = SLAB_MAX_ORDER_HI;
|
||||
|
||||
/* Bootstrap is tricky, because several objects are allocated
|
||||
|
|
|
@ -1022,7 +1022,7 @@ EXPORT_SYMBOL(pagevec_lookup_range_nr_tag);
|
|||
*/
|
||||
void __init swap_setup(void)
|
||||
{
|
||||
unsigned long megs = totalram_pages >> (20 - PAGE_SHIFT);
|
||||
unsigned long megs = totalram_pages() >> (20 - PAGE_SHIFT);
|
||||
|
||||
/* Use a smaller cluster for small-memory machines */
|
||||
if (megs < 16)
|
||||
|
|
|
@ -593,7 +593,7 @@ unsigned long vm_commit_limit(void)
|
|||
if (sysctl_overcommit_kbytes)
|
||||
allowed = sysctl_overcommit_kbytes >> (PAGE_SHIFT - 10);
|
||||
else
|
||||
allowed = ((totalram_pages - hugetlb_total_pages())
|
||||
allowed = ((totalram_pages() - hugetlb_total_pages())
|
||||
* sysctl_overcommit_ratio / 100);
|
||||
allowed += total_swap_pages;
|
||||
|
||||
|
|
|
@ -1634,7 +1634,7 @@ void *vmap(struct page **pages, unsigned int count,
|
|||
|
||||
might_sleep();
|
||||
|
||||
if (count > totalram_pages)
|
||||
if (count > totalram_pages())
|
||||
return NULL;
|
||||
|
||||
size = (unsigned long)count << PAGE_SHIFT;
|
||||
|
@ -1739,7 +1739,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
|
|||
unsigned long real_size = size;
|
||||
|
||||
size = PAGE_ALIGN(size);
|
||||
if (!size || (size >> PAGE_SHIFT) > totalram_pages)
|
||||
if (!size || (size >> PAGE_SHIFT) > totalram_pages())
|
||||
goto fail;
|
||||
|
||||
area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED |
|
||||
|
|
|
@ -549,7 +549,7 @@ static int __init workingset_init(void)
|
|||
* double the initial memory by using totalram_pages as-is.
|
||||
*/
|
||||
timestamp_bits = BITS_PER_LONG - EVICTION_SHIFT;
|
||||
max_order = fls_long(totalram_pages - 1);
|
||||
max_order = fls_long(totalram_pages() - 1);
|
||||
if (max_order > timestamp_bits)
|
||||
bucket_order = max_order - timestamp_bits;
|
||||
pr_info("workingset: timestamp_bits=%d max_order=%d bucket_order=%u\n",
|
||||
|
|
|
@ -219,7 +219,7 @@ static const struct zpool_ops zswap_zpool_ops = {
|
|||
|
||||
static bool zswap_is_full(void)
|
||||
{
|
||||
return totalram_pages * zswap_max_pool_percent / 100 <
|
||||
return totalram_pages() * zswap_max_pool_percent / 100 <
|
||||
DIV_ROUND_UP(zswap_pool_total_size, PAGE_SIZE);
|
||||
}
|
||||
|
||||
|
|
|
@ -1131,7 +1131,7 @@ EXPORT_SYMBOL_GPL(dccp_debug);
|
|||
static int __init dccp_init(void)
|
||||
{
|
||||
unsigned long goal;
|
||||
unsigned long nr_pages = totalram_pages;
|
||||
unsigned long nr_pages = totalram_pages();
|
||||
int ehash_order, bhash_order, i;
|
||||
int rc;
|
||||
|
||||
|
|
|
@ -1866,7 +1866,7 @@ void __init dn_route_init(void)
|
|||
dn_route_timer.expires = jiffies + decnet_dst_gc_interval * HZ;
|
||||
add_timer(&dn_route_timer);
|
||||
|
||||
goal = totalram_pages >> (26 - PAGE_SHIFT);
|
||||
goal = totalram_pages() >> (26 - PAGE_SHIFT);
|
||||
|
||||
for(order = 0; (1UL << order) < goal; order++)
|
||||
/* NOTHING */;
|
||||
|
|
|
@ -1000,7 +1000,7 @@ static int __net_init tcp_net_metrics_init(struct net *net)
|
|||
|
||||
slots = tcpmhash_entries;
|
||||
if (!slots) {
|
||||
if (totalram_pages >= 128 * 1024)
|
||||
if (totalram_pages() >= 128 * 1024)
|
||||
slots = 16 * 1024;
|
||||
else
|
||||
slots = 8 * 1024;
|
||||
|
|
|
@ -2248,7 +2248,7 @@ static __always_inline unsigned int total_extension_size(void)
|
|||
|
||||
int nf_conntrack_init_start(void)
|
||||
{
|
||||
unsigned long nr_pages = totalram_pages;
|
||||
unsigned long nr_pages = totalram_pages();
|
||||
int max_factor = 8;
|
||||
int ret = -ENOMEM;
|
||||
int i;
|
||||
|
|
|
@ -274,7 +274,7 @@ static int htable_create(struct net *net, struct hashlimit_cfg3 *cfg,
|
|||
struct xt_hashlimit_htable *hinfo;
|
||||
const struct seq_operations *ops;
|
||||
unsigned int size, i;
|
||||
unsigned long nr_pages = totalram_pages;
|
||||
unsigned long nr_pages = totalram_pages();
|
||||
int ret;
|
||||
|
||||
if (cfg->size) {
|
||||
|
|
|
@ -1368,7 +1368,7 @@ static __init int sctp_init(void)
|
|||
int status = -EINVAL;
|
||||
unsigned long goal;
|
||||
unsigned long limit;
|
||||
unsigned long nr_pages = totalram_pages;
|
||||
unsigned long nr_pages = totalram_pages();
|
||||
int max_share;
|
||||
int order;
|
||||
int num_entries;
|
||||
|
|
|
@ -106,7 +106,7 @@ void ima_add_kexec_buffer(struct kimage *image)
|
|||
kexec_segment_size = ALIGN(ima_get_binary_runtime_size() +
|
||||
PAGE_SIZE / 2, PAGE_SIZE);
|
||||
if ((kexec_segment_size == ULONG_MAX) ||
|
||||
((kexec_segment_size >> PAGE_SHIFT) > totalram_pages / 2)) {
|
||||
((kexec_segment_size >> PAGE_SHIFT) > totalram_pages() / 2)) {
|
||||
pr_err("Binary measurement list too large.\n");
|
||||
return;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue