diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/module.c | 19 | ||||
| -rw-r--r-- | kernel/power/main.c | 2 | ||||
| -rw-r--r-- | kernel/power/snapshot.c | 21 | ||||
| -rw-r--r-- | kernel/power/suspend.c | 13 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 4 |
5 files changed, 34 insertions, 25 deletions
diff --git a/kernel/module.c b/kernel/module.c index 99fdf94efce8..ec53f594e9c9 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2479,6 +2479,23 @@ static int elf_header_check(struct load_info *info) return 0; } +#define COPY_CHUNK_SIZE (16*PAGE_SIZE) + +static int copy_chunked_from_user(void *dst, const void __user *usrc, unsigned long len) +{ + do { + unsigned long n = min(len, COPY_CHUNK_SIZE); + + if (copy_from_user(dst, usrc, n) != 0) + return -EFAULT; + cond_resched(); + dst += n; + usrc += n; + len -= n; + } while (len); + return 0; +} + /* Sets info->hdr and info->len. */ static int copy_module_from_user(const void __user *umod, unsigned long len, struct load_info *info) @@ -2498,7 +2515,7 @@ static int copy_module_from_user(const void __user *umod, unsigned long len, if (!info->hdr) return -ENOMEM; - if (copy_from_user(info->hdr, umod, info->len) != 0) { + if (copy_chunked_from_user(info->hdr, umod, info->len) != 0) { vfree(info->hdr); return -EFAULT; } diff --git a/kernel/power/main.c b/kernel/power/main.c index 9a59d042ea84..86e8157a450f 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -11,7 +11,7 @@ #include <linux/export.h> #include <linux/kobject.h> #include <linux/string.h> -#include <linux/resume-trace.h> +#include <linux/pm-trace.h> #include <linux/workqueue.h> #include <linux/debugfs.h> #include <linux/seq_file.h> diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index c24d5a23bf93..5235dd4e1e2f 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -955,25 +955,6 @@ static void mark_nosave_pages(struct memory_bitmap *bm) } } -static bool is_nosave_page(unsigned long pfn) -{ - struct nosave_region *region; - - list_for_each_entry(region, &nosave_regions, list) { - if (pfn >= region->start_pfn && pfn < region->end_pfn) { - pr_err("PM: %#010llx in e820 nosave region: " - "[mem %#010llx-%#010llx]\n", - (unsigned long long) pfn << PAGE_SHIFT, - (unsigned long long) region->start_pfn << PAGE_SHIFT, - ((unsigned long long) region->end_pfn << PAGE_SHIFT) - - 1); - return true; - } - } - - return false; -} - /** * create_basic_memory_bitmaps - create bitmaps needed for marking page * frames that should not be saved and free page frames. The pointers @@ -2042,7 +2023,7 @@ static int mark_unsafe_pages(struct memory_bitmap *bm) do { pfn = memory_bm_next_pfn(bm); if (likely(pfn != BM_END_OF_MAP)) { - if (likely(pfn_valid(pfn)) && !is_nosave_page(pfn)) + if (likely(pfn_valid(pfn))) swsusp_set_page_free(pfn_to_page(pfn)); else return -EFAULT; diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index b7d6b3a721b1..8d7a1ef72758 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -28,6 +28,7 @@ #include <linux/ftrace.h> #include <trace/events/power.h> #include <linux/compiler.h> +#include <linux/moduleparam.h> #include "power.h" @@ -233,12 +234,20 @@ static bool platform_suspend_again(suspend_state_t state) suspend_ops->suspend_again() : false; } +#ifdef CONFIG_PM_DEBUG +static unsigned int pm_test_delay = 5; +module_param(pm_test_delay, uint, 0644); +MODULE_PARM_DESC(pm_test_delay, + "Number of seconds to wait before resuming from suspend test"); +#endif + static int suspend_test(int level) { #ifdef CONFIG_PM_DEBUG if (pm_test_level == level) { - printk(KERN_INFO "suspend debug: Waiting for 5 seconds.\n"); - mdelay(5000); + printk(KERN_INFO "suspend debug: Waiting for %d second(s).\n", + pm_test_delay); + mdelay(pm_test_delay * 1000); return 1; } #endif /* !CONFIG_PM_DEBUG */ diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index bcfe32088b37..241213be507c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2165,8 +2165,10 @@ void task_numa_work(struct callback_head *work) vma = mm->mmap; } for (; vma; vma = vma->vm_next) { - if (!vma_migratable(vma) || !vma_policy_mof(vma)) + if (!vma_migratable(vma) || !vma_policy_mof(vma) || + is_vm_hugetlb_page(vma)) { continue; + } /* * Shared library pages mapped by multiple processes are not |
