Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
authorLinus Torvalds <torvalds@linux-foundation.org>
Thu, 27 Aug 2009 03:39:31 +0000 (20:39 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 27 Aug 2009 03:39:31 +0000 (20:39 -0700)
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/ps3: Update ps3_defconfig
  powerpc/ps3: Add missing check for PS3 to rtc-ps3 platform device registration

21 files changed:
arch/m68k/amiga/config.c
arch/m68k/include/asm/motorola_pgalloc.h
arch/m68k/include/asm/pgtable_mm.h
arch/m68k/include/asm/unistd.h
arch/m68k/kernel/entry.S
arch/m68knommu/kernel/syscalltable.S
drivers/acpi/processor_core.c
drivers/acpi/processor_thermal.c
drivers/acpi/processor_throttling.c
drivers/leds/ledtrig-gpio.c
drivers/macintosh/via-maciisi.c
drivers/platform/x86/wmi.c
drivers/pps/pps.c
drivers/thermal/thermal_sys.c
include/acpi/processor.h
include/linux/flex_array.h
kernel/fork.c
lib/flex_array.c
mm/rmap.c
mm/vmscan.c
security/integrity/ima/ima_main.c

index 6e56275..6c74751 100644 (file)
@@ -574,10 +574,11 @@ static int a2000_hwclk(int op, struct rtc_time *t)
 
        tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD;
 
-       while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) {
+       while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt) {
                tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
                udelay(70);
                tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
+               --cnt;
        }
 
        if (!cnt)
@@ -649,10 +650,11 @@ static int amiga_set_clock_mmss(unsigned long nowtime)
 
                tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
 
-               while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) {
+               while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt) {
                        tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
                        udelay(70);
                        tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
+                       --cnt;
                }
 
                if (!cnt)
index 15ee4c7..2f02f26 100644 (file)
@@ -36,12 +36,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addres
                return NULL;
 
        pte = kmap(page);
-       if (pte) {
-               __flush_page_to_ram(pte);
-               flush_tlb_kernel_page(pte);
-               nocache_page(pte);
-       }
-       kunmap(pte);
+       __flush_page_to_ram(pte);
+       flush_tlb_kernel_page(pte);
+       nocache_page(pte);
+       kunmap(page);
        pgtable_page_ctor(page);
        return page;
 }
index 0b604f0..fe60e1a 100644 (file)
@@ -135,8 +135,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
 #endif
 
 #ifndef __ASSEMBLY__
-#include <asm-generic/pgtable.h>
-
 /*
  * Macro to mark a page protection value as "uncacheable".
  */
@@ -154,6 +152,7 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
            ? (__pgprot((pgprot_val(prot) & _CACHEMASK040) | _PAGE_NOCACHE_S))  \
            : (prot)))
 
+#include <asm-generic/pgtable.h>
 #endif /* !__ASSEMBLY__ */
 
 /*
index aa29a86..946d869 100644 (file)
 #define __NR_inotify_init1     328
 #define __NR_preadv            329
 #define __NR_pwritev           330
+#define __NR_rt_tgsigqueueinfo 331
+#define __NR_perf_counter_open 332
 
 #ifdef __KERNEL__
 
-#define NR_syscalls            331
+#define NR_syscalls            333
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
index 8744f60..c3735cd 100644 (file)
@@ -755,4 +755,6 @@ sys_call_table:
        .long sys_inotify_init1
        .long sys_preadv
        .long sys_pwritev               /* 330 */
+       .long sys_rt_tgsigqueueinfo
+       .long sys_perf_counter_open
 
index c0b8782..0ae123e 100644 (file)
@@ -349,6 +349,8 @@ ENTRY(sys_call_table)
        .long sys_inotify_init1
        .long sys_preadv
        .long sys_pwritev               /* 330 */
+       .long sys_rt_tgsigqueueinfo
+       .long sys_perf_counter_open
 
        .rept NR_syscalls-(.-sys_call_table)/4
                .long sys_ni_syscall
index 84e0f3c..2cc4b30 100644 (file)
@@ -1151,6 +1151,9 @@ static int __init acpi_processor_init(void)
 {
        int result = 0;
 
+       if (acpi_disabled)
+               return 0;
+
        memset(&errata, 0, sizeof(errata));
 
 #ifdef CONFIG_SMP
@@ -1197,6 +1200,9 @@ out_proc:
 
 static void __exit acpi_processor_exit(void)
 {
+       if (acpi_disabled)
+               return;
+
        acpi_processor_ppc_exit();
 
        acpi_thermal_cpufreq_exit();
index 39838c6..31adda1 100644 (file)
@@ -66,7 +66,7 @@ static int acpi_processor_apply_limit(struct acpi_processor *pr)
                if (pr->limit.thermal.tx > tx)
                        tx = pr->limit.thermal.tx;
 
-               result = acpi_processor_set_throttling(pr, tx);
+               result = acpi_processor_set_throttling(pr, tx, false);
                if (result)
                        goto end;
        }
@@ -421,12 +421,12 @@ processor_set_cur_state(struct thermal_cooling_device *cdev,
 
        if (state <= max_pstate) {
                if (pr->flags.throttling && pr->throttling.state)
-                       result = acpi_processor_set_throttling(pr, 0);
+                       result = acpi_processor_set_throttling(pr, 0, false);
                cpufreq_set_cur_state(pr->id, state);
        } else {
                cpufreq_set_cur_state(pr->id, max_pstate);
                result = acpi_processor_set_throttling(pr,
-                               state - max_pstate);
+                               state - max_pstate, false);
        }
        return result;
 }
index 2275437..ae39797 100644 (file)
@@ -62,7 +62,8 @@ struct throttling_tstate {
 #define THROTTLING_POSTCHANGE      (2)
 
 static int acpi_processor_get_throttling(struct acpi_processor *pr);
-int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
+int acpi_processor_set_throttling(struct acpi_processor *pr,
+                                               int state, bool force);
 
 static int acpi_processor_update_tsd_coord(void)
 {
@@ -361,7 +362,7 @@ int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
                 */
                target_state = throttling_limit;
        }
-       return acpi_processor_set_throttling(pr, target_state);
+       return acpi_processor_set_throttling(pr, target_state, false);
 }
 
 /*
@@ -839,10 +840,10 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
        if (ret >= 0) {
                state = acpi_get_throttling_state(pr, value);
                if (state == -1) {
-                       ACPI_WARNING((AE_INFO,
-                               "Invalid throttling state, reset"));
+                       ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                               "Invalid throttling state, reset\n"));
                        state = 0;
-                       ret = acpi_processor_set_throttling(pr, state);
+                       ret = acpi_processor_set_throttling(pr, state, true);
                        if (ret)
                                return ret;
                }
@@ -915,7 +916,7 @@ static int acpi_processor_get_fadt_info(struct acpi_processor *pr)
 }
 
 static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
-                                             int state)
+                                             int state, bool force)
 {
        u32 value = 0;
        u32 duty_mask = 0;
@@ -930,7 +931,7 @@ static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
        if (!pr->flags.throttling)
                return -ENODEV;
 
-       if (state == pr->throttling.state)
+       if (!force && (state == pr->throttling.state))
                return 0;
 
        if (state < pr->throttling_platform_limit)
@@ -988,7 +989,7 @@ static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
 }
 
 static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
-                                            int state)
+                                            int state, bool force)
 {
        int ret;
        acpi_integer value;
@@ -1002,7 +1003,7 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
        if (!pr->flags.throttling)
                return -ENODEV;
 
-       if (state == pr->throttling.state)
+       if (!force && (state == pr->throttling.state))
                return 0;
 
        if (state < pr->throttling_platform_limit)
@@ -1018,7 +1019,8 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
        return 0;
 }
 
-int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
+int acpi_processor_set_throttling(struct acpi_processor *pr,
+                                               int state, bool force)
 {
        cpumask_var_t saved_mask;
        int ret = 0;
@@ -1070,7 +1072,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
                /* FIXME: use work_on_cpu() */
                set_cpus_allowed_ptr(current, cpumask_of(pr->id));
                ret = p_throttling->acpi_processor_set_throttling(pr,
-                                               t_state.target_state);
+                                               t_state.target_state, force);
        } else {
                /*
                 * When the T-state coordination is SW_ALL or HW_ALL,
@@ -1103,7 +1105,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
                        set_cpus_allowed_ptr(current, cpumask_of(i));
                        ret = match_pr->throttling.
                                acpi_processor_set_throttling(
-                               match_pr, t_state.target_state);
+                               match_pr, t_state.target_state, force);
                }
        }
        /*
@@ -1201,7 +1203,7 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                  "Disabling throttling (was T%d)\n",
                                  pr->throttling.state));
-               result = acpi_processor_set_throttling(pr, 0);
+               result = acpi_processor_set_throttling(pr, 0, false);
                if (result)
                        goto end;
        }
@@ -1307,7 +1309,7 @@ static ssize_t acpi_processor_write_throttling(struct file *file,
        if (strcmp(tmpbuf, charp) != 0)
                return -EINVAL;
 
-       result = acpi_processor_set_throttling(pr, state_val);
+       result = acpi_processor_set_throttling(pr, state_val, false);
        if (result)
                return result;
 
index a247ae6..1bc5db4 100644 (file)
@@ -117,6 +117,9 @@ static ssize_t gpio_trig_inverted_store(struct device *dev,
 
        gpio_data->inverted = !!inverted;
 
+       /* After inverting, we need to update the LED. */
+       schedule_work(&gpio_data->work);
+
        return n;
 }
 static DEVICE_ATTR(inverted, 0644, gpio_trig_inverted_show,
@@ -146,20 +149,26 @@ static ssize_t gpio_trig_gpio_store(struct device *dev,
                return -EINVAL;
        }
 
+       if (gpio_data->gpio == gpio)
+               return n;
+
        if (!gpio) {
-               free_irq(gpio_to_irq(gpio_data->gpio), led);
+               if (gpio_data->gpio != 0)
+                       free_irq(gpio_to_irq(gpio_data->gpio), led);
+               gpio_data->gpio = 0;
                return n;
        }
 
-       if (gpio_data->gpio > 0 && gpio_data->gpio != gpio)
-               free_irq(gpio_to_irq(gpio_data->gpio), led);
-
-       gpio_data->gpio = gpio;
        ret = request_irq(gpio_to_irq(gpio), gpio_trig_irq,
                        IRQF_SHARED | IRQF_TRIGGER_RISING
                        | IRQF_TRIGGER_FALLING, "ledtrig-gpio", led);
-       if (ret)
+       if (ret) {
                dev_err(dev, "request_irq failed with error %d\n", ret);
+       } else {
+               if (gpio_data->gpio != 0)
+                       free_irq(gpio_to_irq(gpio_data->gpio), led);
+               gpio_data->gpio = gpio;
+       }
 
        return ret ? ret : n;
 }
@@ -211,7 +220,8 @@ static void gpio_trig_deactivate(struct led_classdev *led)
                device_remove_file(led->dev, &dev_attr_inverted);
                device_remove_file(led->dev, &dev_attr_desired_brightness);
                flush_work(&gpio_data->work);
-               free_irq(gpio_to_irq(gpio_data->gpio),led);
+               if (gpio_data->gpio != 0)
+                       free_irq(gpio_to_irq(gpio_data->gpio), led);
                kfree(gpio_data);
        }
 }
index 4d686c0..9ab5b0c 100644 (file)
@@ -288,7 +288,7 @@ static void maciisi_sync(struct adb_request *req)
        }
        /* This could be BAD... when the ADB controller doesn't respond
         * for this long, it's probably not coming back :-( */
-       if(count >= 50) /* Hopefully shouldn't happen */
+       if (count > 50) /* Hopefully shouldn't happen */
                printk(KERN_ERR "maciisi_send_request: poll timed out!\n");
 }
 
index 043b208..f215a59 100644 (file)
@@ -270,7 +270,7 @@ u32 method_id, const struct acpi_buffer *in, struct acpi_buffer *out)
        acpi_status status;
        struct acpi_object_list input;
        union acpi_object params[3];
-       char method[4] = "WM";
+       char method[5] = "WM";
 
        if (!find_guid(guid_string, &wblock))
                return AE_ERROR;
@@ -328,8 +328,8 @@ struct acpi_buffer *out)
        acpi_status status, wc_status = AE_ERROR;
        struct acpi_object_list input, wc_input;
        union acpi_object wc_params[1], wq_params[1];
-       char method[4];
-       char wc_method[4] = "WC";
+       char method[5];
+       char wc_method[5] = "WC";
 
        if (!guid_string || !out)
                return AE_BAD_PARAMETER;
@@ -410,7 +410,7 @@ const struct acpi_buffer *in)
        acpi_handle handle;
        struct acpi_object_list input;
        union acpi_object params[2];
-       char method[4] = "WS";
+       char method[5] = "WS";
 
        if (!guid_string || !in)
                return AE_BAD_DATA;
index ac8cc8c..fea17e7 100644 (file)
@@ -244,7 +244,7 @@ int pps_register_cdev(struct pps_device *pps)
        }
        pps->dev = device_create(pps_class, pps->info.dev, pps->devno, NULL,
                                                        "pps%d", pps->id);
-       if (err)
+       if (IS_ERR(pps->dev))
                goto del_cdev;
        dev_set_drvdata(pps->dev, pps);
 
index 0a69672..4e83c29 100644 (file)
@@ -953,7 +953,12 @@ void thermal_zone_device_update(struct thermal_zone_device *tz)
 
        mutex_lock(&tz->lock);
 
-       tz->ops->get_temp(tz, &temp);
+       if (tz->ops->get_temp(tz, &temp)) {
+               /* get_temp failed - retry it later */
+               printk(KERN_WARNING PREFIX "failed to read out thermal zone "
+                      "%d\n", tz->id);
+               goto leave;
+       }
 
        for (count = 0; count < tz->trips; count++) {
                tz->ops->get_trip_type(tz, count, &trip_type);
@@ -1005,6 +1010,8 @@ void thermal_zone_device_update(struct thermal_zone_device *tz)
                                            THERMAL_TRIPS_NONE);
 
        tz->last_temperature = temp;
+
+      leave:
        if (tz->passive)
                thermal_zone_device_set_polling(tz, tz->passive_delay);
        else if (tz->polling_delay)
index baf1e0a..740ac3a 100644 (file)
@@ -174,7 +174,7 @@ struct acpi_processor_throttling {
        cpumask_var_t shared_cpu_map;
        int (*acpi_processor_get_throttling) (struct acpi_processor * pr);
        int (*acpi_processor_set_throttling) (struct acpi_processor * pr,
-                                             int state);
+                                             int state, bool force);
 
        u32 address;
        u8 duty_offset;
@@ -321,7 +321,8 @@ static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
 /* in processor_throttling.c */
 int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
 int acpi_processor_get_throttling_info(struct acpi_processor *pr);
-extern int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
+extern int acpi_processor_set_throttling(struct acpi_processor *pr,
+                                        int state, bool force);
 extern const struct file_operations acpi_processor_throttling_fops;
 extern void acpi_processor_throttling_init(void);
 /* in processor_idle.c */
index 23c1ec7..45ff184 100644 (file)
@@ -21,7 +21,7 @@ struct flex_array {
                struct {
                        int element_size;
                        int total_nr_elements;
-                       struct flex_array_part *parts[0];
+                       struct flex_array_part *parts[];
                };
                /*
                 * This little trick makes sure that
@@ -36,12 +36,14 @@ struct flex_array {
        .total_nr_elements = (total),   \
 } } }
 
-struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags);
-int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags);
+struct flex_array *flex_array_alloc(int element_size, unsigned int total,
+               gfp_t flags);
+int flex_array_prealloc(struct flex_array *fa, unsigned int start,
+               unsigned int end, gfp_t flags);
 void flex_array_free(struct flex_array *fa);
 void flex_array_free_parts(struct flex_array *fa);
-int flex_array_put(struct flex_array *fa, int element_nr, void *src,
+int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src,
                gfp_t flags);
-void *flex_array_get(struct flex_array *fa, int element_nr);
+void *flex_array_get(struct flex_array *fa, unsigned int element_nr);
 
 #endif /* _FLEX_ARRAY_H */
index 144326b..e6c04d4 100644 (file)
@@ -815,11 +815,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
 {
        struct signal_struct *sig;
 
-       if (clone_flags & CLONE_THREAD) {
-               atomic_inc(&current->signal->count);
-               atomic_inc(&current->signal->live);
+       if (clone_flags & CLONE_THREAD)
                return 0;
-       }
 
        sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
        tsk->signal = sig;
@@ -877,16 +874,6 @@ void __cleanup_signal(struct signal_struct *sig)
        kmem_cache_free(signal_cachep, sig);
 }
 
-static void cleanup_signal(struct task_struct *tsk)
-{
-       struct signal_struct *sig = tsk->signal;
-
-       atomic_dec(&sig->live);
-
-       if (atomic_dec_and_test(&sig->count))
-               __cleanup_signal(sig);
-}
-
 static void copy_flags(unsigned long clone_flags, struct task_struct *p)
 {
        unsigned long new_flags = p->flags;
@@ -1239,6 +1226,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
        }
 
        if (clone_flags & CLONE_THREAD) {
+               atomic_inc(&current->signal->count);
+               atomic_inc(&current->signal->live);
                p->group_leader = current->group_leader;
                list_add_tail_rcu(&p->thread_group, &p->group_leader->thread_group);
        }
@@ -1282,7 +1271,8 @@ bad_fork_cleanup_mm:
        if (p->mm)
                mmput(p->mm);
 bad_fork_cleanup_signal:
-       cleanup_signal(p);
+       if (!(clone_flags & CLONE_THREAD))
+               __cleanup_signal(p->signal);
 bad_fork_cleanup_sighand:
        __cleanup_sighand(p->sighand);
 bad_fork_cleanup_fs:
index 08f1636..7baed2f 100644 (file)
@@ -99,7 +99,8 @@ static inline int elements_fit_in_base(struct flex_array *fa)
  * capacity in the base structure.  Also note that no effort is made
  * to efficiently pack objects across page boundaries.
  */
-struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags)
+struct flex_array *flex_array_alloc(int element_size, unsigned int total,
+                                       gfp_t flags)
 {
        struct flex_array *ret;
        int max_size = nr_base_part_ptrs() * __elements_per_part(element_size);
@@ -115,16 +116,14 @@ struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags)
        return ret;
 }
 
-static int fa_element_to_part_nr(struct flex_array *fa, int element_nr)
+static int fa_element_to_part_nr(struct flex_array *fa,
+                                       unsigned int element_nr)
 {
        return element_nr / __elements_per_part(fa->element_size);
 }
 
 /**
  * flex_array_free_parts - just free the second-level pages
- * @src:       address of data to copy into the array
- * @element_nr:        index of the position in which to insert
- *             the new element.
  *
  * This is to be used in cases where the base 'struct flex_array'
  * has been statically allocated and should not be free.
@@ -146,14 +145,12 @@ void flex_array_free(struct flex_array *fa)
        kfree(fa);
 }
 
-static int fa_index_inside_part(struct flex_array *fa, int element_nr)
+static unsigned int index_inside_part(struct flex_array *fa,
+                                       unsigned int element_nr)
 {
-       return element_nr % __elements_per_part(fa->element_size);
-}
+       unsigned int part_offset;
 
-static int index_inside_part(struct flex_array *fa, int element_nr)
-{
-       int part_offset = fa_index_inside_part(fa, element_nr);
+       part_offset = element_nr % __elements_per_part(fa->element_size);
        return part_offset * fa->element_size;
 }
 
@@ -188,7 +185,8 @@ __fa_get_part(struct flex_array *fa, int part_nr, gfp_t flags)
  *
  * Locking must be provided by the caller.
  */
-int flex_array_put(struct flex_array *fa, int element_nr, void *src, gfp_t flags)
+int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src,
+                       gfp_t flags)
 {
        int part_nr = fa_element_to_part_nr(fa, element_nr);
        struct flex_array_part *part;
@@ -198,10 +196,11 @@ int flex_array_put(struct flex_array *fa, int element_nr, void *src, gfp_t flags
                return -ENOSPC;
        if (elements_fit_in_base(fa))
                part = (struct flex_array_part *)&fa->parts[0];
-       else
+       else {
                part = __fa_get_part(fa, part_nr, flags);
-       if (!part)
-               return -ENOMEM;
+               if (!part)
+                       return -ENOMEM;
+       }
        dst = &part->elements[index_inside_part(fa, element_nr)];
        memcpy(dst, src, fa->element_size);
        return 0;
@@ -219,7 +218,8 @@ int flex_array_put(struct flex_array *fa, int element_nr, void *src, gfp_t flags
  *
  * Locking must be provided by the caller.
  */
-int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags)
+int flex_array_prealloc(struct flex_array *fa, unsigned int start,
+                       unsigned int end, gfp_t flags)
 {
        int start_part;
        int end_part;
@@ -250,18 +250,19 @@ int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags)
  *
  * Locking must be provided by the caller.
  */
-void *flex_array_get(struct flex_array *fa, int element_nr)
+void *flex_array_get(struct flex_array *fa, unsigned int element_nr)
 {
        int part_nr = fa_element_to_part_nr(fa, element_nr);
        struct flex_array_part *part;
 
        if (element_nr >= fa->total_nr_elements)
                return NULL;
-       if (!fa->parts[part_nr])
-               return NULL;
        if (elements_fit_in_base(fa))
                part = (struct flex_array_part *)&fa->parts[0];
-       else
+       else {
                part = fa->parts[part_nr];
+               if (!part)
+                       return NULL;
+       }
        return &part->elements[index_inside_part(fa, element_nr)];
 }
index 836c6c6..0895b5c 100644 (file)
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -358,6 +358,7 @@ static int page_referenced_one(struct page *page,
         */
        if (vma->vm_flags & VM_LOCKED) {
                *mapcount = 1;  /* break early from loop */
+               *vm_flags |= VM_LOCKED;
                goto out_unmap;
        }
 
index dea7abd..94e86dd 100644 (file)
@@ -630,9 +630,14 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 
                referenced = page_referenced(page, 1,
                                                sc->mem_cgroup, &vm_flags);
-               /* In active use or really unfreeable?  Activate it. */
+               /*
+                * In active use or really unfreeable?  Activate it.
+                * If page which have PG_mlocked lost isoltation race,
+                * try_to_unmap moves it to unevictable list
+                */
                if (sc->order <= PAGE_ALLOC_COSTLY_ORDER &&
-                                       referenced && page_mapping_inuse(page))
+                                       referenced && page_mapping_inuse(page)
+                                       && !(vm_flags & VM_LOCKED))
                        goto activate_locked;
 
                /*
index 101c512..4732f5e 100644 (file)
@@ -262,6 +262,8 @@ void ima_counts_put(struct path *path, int mask)
        else if (mask & (MAY_READ | MAY_EXEC))
                iint->readcount--;
        mutex_unlock(&iint->mutex);
+
+       kref_put(&iint->refcount, iint_free);
 }
 
 /*
@@ -291,6 +293,8 @@ void ima_counts_get(struct file *file)
        if (file->f_mode & FMODE_WRITE)
                iint->writecount++;
        mutex_unlock(&iint->mutex);
+
+       kref_put(&iint->refcount, iint_free);
 }
 EXPORT_SYMBOL_GPL(ima_counts_get);