Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux...
authorLinus Torvalds <torvalds@linux-foundation.org>
Sun, 23 Mar 2008 00:04:58 +0000 (17:04 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sun, 23 Mar 2008 00:04:58 +0000 (17:04 -0700)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
  x86: revert: reserve dma32 early for gart

13 files changed:
MAINTAINERS
drivers/mmc/core/Makefile
drivers/mmc/core/bus.c
drivers/mmc/core/bus.h
drivers/mmc/core/core.h
drivers/mmc/core/mmc.c
drivers/mmc/core/sd.c
drivers/mmc/core/sdio.c
drivers/mmc/core/sysfs.c [deleted file]
drivers/mmc/core/sysfs.h [deleted file]
drivers/pnp/isapnp/core.c
fs/proc/task_mmu.c
include/linux/pnp.h

index 03e4602..73883b8 100644 (file)
@@ -2935,9 +2935,9 @@ S:        Maintained
 
 ORACLE CLUSTER FILESYSTEM 2 (OCFS2)
 P:     Mark Fasheh
-M:     mark.fasheh@oracle.com
-P:     Kurt Hackel
-M:     kurt.hackel@oracle.com
+M:     mfasheh@suse.com
+P:     Joel Becker
+M:     joel.becker@oracle.com
 L:     ocfs2-devel@oss.oracle.com
 W:     http://oss.oracle.com/projects/ocfs2/
 S:     Supported
index 4985807..19a1a25 100644 (file)
@@ -7,7 +7,7 @@ ifeq ($(CONFIG_MMC_DEBUG),y)
 endif
 
 obj-$(CONFIG_MMC)              += mmc_core.o
-mmc_core-y                     := core.o sysfs.o bus.o host.o \
+mmc_core-y                     := core.o bus.o host.o \
                                   mmc.o mmc_ops.o sd.o sd_ops.o \
                                   sdio.o sdio_ops.o sdio_bus.o \
                                   sdio_cis.o sdio_io.o sdio_irq.o
index b0c22ca..fd95b18 100644 (file)
@@ -17,7 +17,6 @@
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
 
-#include "sysfs.h"
 #include "core.h"
 #include "sdio_cis.h"
 #include "bus.h"
@@ -43,7 +42,7 @@ static ssize_t mmc_type_show(struct device *dev,
 }
 
 static struct device_attribute mmc_dev_attrs[] = {
-       MMC_ATTR_RO(type),
+       __ATTR(type, S_IRUGO, mmc_type_show, NULL),
        __ATTR_NULL,
 };
 
@@ -189,7 +188,7 @@ static void mmc_release_card(struct device *dev)
 /*
  * Allocate and initialise a new MMC card structure.
  */
-struct mmc_card *mmc_alloc_card(struct mmc_host *host)
+struct mmc_card *mmc_alloc_card(struct mmc_host *host, struct device_type *type)
 {
        struct mmc_card *card;
 
@@ -204,6 +203,7 @@ struct mmc_card *mmc_alloc_card(struct mmc_host *host)
        card->dev.parent = mmc_classdev(host);
        card->dev.bus = &mmc_bus_type;
        card->dev.release = mmc_release_card;
+       card->dev.type = type;
 
        return card;
 }
@@ -248,24 +248,10 @@ int mmc_add_card(struct mmc_card *card)
                        type, card->rca);
        }
 
-       card->dev.uevent_suppress = 1;
-
        ret = device_add(&card->dev);
        if (ret)
                return ret;
 
-       if (card->host->bus_ops->sysfs_add) {
-               ret = card->host->bus_ops->sysfs_add(card->host, card);
-               if (ret) {
-                       device_del(&card->dev);
-                       return ret;
-                }
-       }
-
-       card->dev.uevent_suppress = 0;
-
-       kobject_uevent(&card->dev.kobj, KOBJ_ADD);
-
        mmc_card_set_present(card);
 
        return 0;
@@ -285,9 +271,6 @@ void mmc_remove_card(struct mmc_card *card)
                        printk(KERN_INFO "%s: card %04x removed\n",
                                mmc_hostname(card->host), card->rca);
                }
-
-               if (card->host->bus_ops->sysfs_remove)
-                       card->host->bus_ops->sysfs_remove(card->host, card);
                device_del(&card->dev);
        }
 
index 4f35431..1817876 100644 (file)
 #ifndef _MMC_CORE_BUS_H
 #define _MMC_CORE_BUS_H
 
-struct mmc_card *mmc_alloc_card(struct mmc_host *host);
+#define MMC_DEV_ATTR(name, fmt, args...)                                       \
+static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *attr, char *buf)        \
+{                                                                              \
+       struct mmc_card *card = container_of(dev, struct mmc_card, dev);        \
+       return sprintf(buf, fmt, args);                                         \
+}                                                                              \
+static DEVICE_ATTR(name, S_IRUGO, mmc_##name##_show, NULL)
+
+struct mmc_card *mmc_alloc_card(struct mmc_host *host,
+       struct device_type *type);
 int mmc_add_card(struct mmc_card *card);
 void mmc_remove_card(struct mmc_card *card);
 
index 39daf2f..cfa8e15 100644 (file)
@@ -18,8 +18,6 @@
 struct mmc_bus_ops {
        void (*remove)(struct mmc_host *);
        void (*detect)(struct mmc_host *);
-       int (*sysfs_add)(struct mmc_host *, struct mmc_card *card);
-       void (*sysfs_remove)(struct mmc_host *, struct mmc_card *card);
        void (*suspend)(struct mmc_host *);
        void (*resume)(struct mmc_host *);
 };
index 68c0e3b..3da29ee 100644 (file)
@@ -17,7 +17,6 @@
 #include <linux/mmc/mmc.h>
 
 #include "core.h"
-#include "sysfs.h"
 #include "bus.h"
 #include "mmc_ops.h"
 
@@ -248,6 +247,44 @@ out:
        return err;
 }
 
+MMC_DEV_ATTR(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1],
+       card->raw_cid[2], card->raw_cid[3]);
+MMC_DEV_ATTR(csd, "%08x%08x%08x%08x\n", card->raw_csd[0], card->raw_csd[1],
+       card->raw_csd[2], card->raw_csd[3]);
+MMC_DEV_ATTR(date, "%02d/%04d\n", card->cid.month, card->cid.year);
+MMC_DEV_ATTR(fwrev, "0x%x\n", card->cid.fwrev);
+MMC_DEV_ATTR(hwrev, "0x%x\n", card->cid.hwrev);
+MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid);
+MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
+MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid);
+MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial);
+
+static struct attribute *mmc_std_attrs[] = {
+       &dev_attr_cid.attr,
+       &dev_attr_csd.attr,
+       &dev_attr_date.attr,
+       &dev_attr_fwrev.attr,
+       &dev_attr_hwrev.attr,
+       &dev_attr_manfid.attr,
+       &dev_attr_name.attr,
+       &dev_attr_oemid.attr,
+       &dev_attr_serial.attr,
+       NULL,
+};
+
+static struct attribute_group mmc_std_attr_group = {
+       .attrs = mmc_std_attrs,
+};
+
+static struct attribute_group *mmc_attr_groups[] = {
+       &mmc_std_attr_group,
+       NULL,
+};
+
+static struct device_type mmc_type = {
+       .groups = mmc_attr_groups,
+};
+
 /*
  * Handle the detection and initialisation of a card.
  *
@@ -308,7 +345,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
                /*
                 * Allocate card structure.
                 */
-               card = mmc_alloc_card(host);
+               card = mmc_alloc_card(host, &mmc_type);
                if (IS_ERR(card)) {
                        err = PTR_ERR(card);
                        goto err;
@@ -459,53 +496,6 @@ static void mmc_detect(struct mmc_host *host)
        }
 }
 
-MMC_ATTR_FN(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1],
-       card->raw_cid[2], card->raw_cid[3]);
-MMC_ATTR_FN(csd, "%08x%08x%08x%08x\n", card->raw_csd[0], card->raw_csd[1],
-       card->raw_csd[2], card->raw_csd[3]);
-MMC_ATTR_FN(date, "%02d/%04d\n", card->cid.month, card->cid.year);
-MMC_ATTR_FN(fwrev, "0x%x\n", card->cid.fwrev);
-MMC_ATTR_FN(hwrev, "0x%x\n", card->cid.hwrev);
-MMC_ATTR_FN(manfid, "0x%06x\n", card->cid.manfid);
-MMC_ATTR_FN(name, "%s\n", card->cid.prod_name);
-MMC_ATTR_FN(oemid, "0x%04x\n", card->cid.oemid);
-MMC_ATTR_FN(serial, "0x%08x\n", card->cid.serial);
-
-static struct device_attribute mmc_dev_attrs[] = {
-       MMC_ATTR_RO(cid),
-       MMC_ATTR_RO(csd),
-       MMC_ATTR_RO(date),
-       MMC_ATTR_RO(fwrev),
-       MMC_ATTR_RO(hwrev),
-       MMC_ATTR_RO(manfid),
-       MMC_ATTR_RO(name),
-       MMC_ATTR_RO(oemid),
-       MMC_ATTR_RO(serial),
-       __ATTR_NULL,
-};
-
-/*
- * Adds sysfs entries as relevant.
- */
-static int mmc_sysfs_add(struct mmc_host *host, struct mmc_card *card)
-{
-       int ret;
-
-       ret = mmc_add_attrs(card, mmc_dev_attrs);
-       if (ret < 0)
-               return ret;
-
-       return 0;
-}
-
-/*
- * Removes the sysfs entries added by mmc_sysfs_add().
- */
-static void mmc_sysfs_remove(struct mmc_host *host, struct mmc_card *card)
-{
-       mmc_remove_attrs(card, mmc_dev_attrs);
-}
-
 #ifdef CONFIG_MMC_UNSAFE_RESUME
 
 /*
@@ -560,8 +550,6 @@ static void mmc_resume(struct mmc_host *host)
 static const struct mmc_bus_ops mmc_ops = {
        .remove = mmc_remove,
        .detect = mmc_detect,
-       .sysfs_add = mmc_sysfs_add,
-       .sysfs_remove = mmc_sysfs_remove,
        .suspend = mmc_suspend,
        .resume = mmc_resume,
 };
index d1c1e0f..7ef3b15 100644 (file)
@@ -18,7 +18,6 @@
 #include <linux/mmc/sd.h>
 
 #include "core.h"
-#include "sysfs.h"
 #include "bus.h"
 #include "mmc_ops.h"
 #include "sd_ops.h"
@@ -283,6 +282,47 @@ out:
        return err;
 }
 
+MMC_DEV_ATTR(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1],
+       card->raw_cid[2], card->raw_cid[3]);
+MMC_DEV_ATTR(csd, "%08x%08x%08x%08x\n", card->raw_csd[0], card->raw_csd[1],
+       card->raw_csd[2], card->raw_csd[3]);
+MMC_DEV_ATTR(scr, "%08x%08x\n", card->raw_scr[0], card->raw_scr[1]);
+MMC_DEV_ATTR(date, "%02d/%04d\n", card->cid.month, card->cid.year);
+MMC_DEV_ATTR(fwrev, "0x%x\n", card->cid.fwrev);
+MMC_DEV_ATTR(hwrev, "0x%x\n", card->cid.hwrev);
+MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid);
+MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
+MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid);
+MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial);
+
+
+static struct attribute *sd_std_attrs[] = {
+       &dev_attr_cid.attr,
+       &dev_attr_csd.attr,
+       &dev_attr_scr.attr,
+       &dev_attr_date.attr,
+       &dev_attr_fwrev.attr,
+       &dev_attr_hwrev.attr,
+       &dev_attr_manfid.attr,
+       &dev_attr_name.attr,
+       &dev_attr_oemid.attr,
+       &dev_attr_serial.attr,
+       NULL,
+};
+
+static struct attribute_group sd_std_attr_group = {
+       .attrs = sd_std_attrs,
+};
+
+static struct attribute_group *sd_attr_groups[] = {
+       &sd_std_attr_group,
+       NULL,
+};
+
+static struct device_type sd_type = {
+       .groups = sd_attr_groups,
+};
+
 /*
  * Handle the detection and initialisation of a card.
  *
@@ -352,7 +392,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
                /*
                 * Allocate card structure.
                 */
-               card = mmc_alloc_card(host);
+               card = mmc_alloc_card(host, &sd_type);
                if (IS_ERR(card)) {
                        err = PTR_ERR(card);
                        goto err;
@@ -518,55 +558,6 @@ static void mmc_sd_detect(struct mmc_host *host)
        }
 }
 
-MMC_ATTR_FN(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1],
-       card->raw_cid[2], card->raw_cid[3]);
-MMC_ATTR_FN(csd, "%08x%08x%08x%08x\n", card->raw_csd[0], card->raw_csd[1],
-       card->raw_csd[2], card->raw_csd[3]);
-MMC_ATTR_FN(scr, "%08x%08x\n", card->raw_scr[0], card->raw_scr[1]);
-MMC_ATTR_FN(date, "%02d/%04d\n", card->cid.month, card->cid.year);
-MMC_ATTR_FN(fwrev, "0x%x\n", card->cid.fwrev);
-MMC_ATTR_FN(hwrev, "0x%x\n", card->cid.hwrev);
-MMC_ATTR_FN(manfid, "0x%06x\n", card->cid.manfid);
-MMC_ATTR_FN(name, "%s\n", card->cid.prod_name);
-MMC_ATTR_FN(oemid, "0x%04x\n", card->cid.oemid);
-MMC_ATTR_FN(serial, "0x%08x\n", card->cid.serial);
-
-static struct device_attribute mmc_sd_dev_attrs[] = {
-       MMC_ATTR_RO(cid),
-       MMC_ATTR_RO(csd),
-       MMC_ATTR_RO(scr),
-       MMC_ATTR_RO(date),
-       MMC_ATTR_RO(fwrev),
-       MMC_ATTR_RO(hwrev),
-       MMC_ATTR_RO(manfid),
-       MMC_ATTR_RO(name),
-       MMC_ATTR_RO(oemid),
-       MMC_ATTR_RO(serial),
-       __ATTR_NULL,
-};
-
-/*
- * Adds sysfs entries as relevant.
- */
-static int mmc_sd_sysfs_add(struct mmc_host *host, struct mmc_card *card)
-{
-       int ret;
-
-       ret = mmc_add_attrs(card, mmc_sd_dev_attrs);
-       if (ret < 0)
-               return ret;
-
-       return 0;
-}
-
-/*
- * Removes the sysfs entries added by mmc_sysfs_add().
- */
-static void mmc_sd_sysfs_remove(struct mmc_host *host, struct mmc_card *card)
-{
-       mmc_remove_attrs(card, mmc_sd_dev_attrs);
-}
-
 #ifdef CONFIG_MMC_UNSAFE_RESUME
 
 /*
@@ -621,8 +612,6 @@ static void mmc_sd_resume(struct mmc_host *host)
 static const struct mmc_bus_ops mmc_sd_ops = {
        .remove = mmc_sd_remove,
        .detect = mmc_sd_detect,
-       .sysfs_add = mmc_sd_sysfs_add,
-       .sysfs_remove = mmc_sd_sysfs_remove,
        .suspend = mmc_sd_suspend,
        .resume = mmc_sd_resume,
 };
index 87a50f4..4eab79e 100644 (file)
@@ -287,7 +287,7 @@ int mmc_attach_sdio(struct mmc_host *host, u32 ocr)
        /*
         * Allocate card structure.
         */
-       card = mmc_alloc_card(host);
+       card = mmc_alloc_card(host, NULL);
        if (IS_ERR(card)) {
                err = PTR_ERR(card);
                goto err;
diff --git a/drivers/mmc/core/sysfs.c b/drivers/mmc/core/sysfs.c
deleted file mode 100644 (file)
index 00a97e7..0000000
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- *  linux/drivers/mmc/core/sysfs.c
- *
- *  Copyright (C) 2003 Russell King, All Rights Reserved.
- *  Copyright 2007 Pierre Ossman
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *  MMC sysfs/driver model support.
- */
-#include <linux/device.h>
-
-#include <linux/mmc/card.h>
-
-#include "sysfs.h"
-
-int mmc_add_attrs(struct mmc_card *card, struct device_attribute *attrs)
-{
-       int error = 0;
-       int i;
-
-       for (i = 0; attr_name(attrs[i]); i++) {
-               error = device_create_file(&card->dev, &attrs[i]);
-               if (error) {
-                       while (--i >= 0)
-                               device_remove_file(&card->dev, &attrs[i]);
-                       break;
-               }
-       }
-
-       return error;
-}
-
-void mmc_remove_attrs(struct mmc_card *card, struct device_attribute *attrs)
-{
-       int i;
-
-       for (i = 0; attr_name(attrs[i]); i++)
-               device_remove_file(&card->dev, &attrs[i]);
-}
-
diff --git a/drivers/mmc/core/sysfs.h b/drivers/mmc/core/sysfs.h
deleted file mode 100644 (file)
index 4b8f670..0000000
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- *  linux/drivers/mmc/core/sysfs.h
- *
- *  Copyright (C) 2003 Russell King, All Rights Reserved.
- *  Copyright 2007 Pierre Ossman
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef _MMC_CORE_SYSFS_H
-#define _MMC_CORE_SYSFS_H
-
-#define MMC_ATTR_FN(name, fmt, args...)                                        \
-static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *attr, char *buf)        \
-{                                                                      \
-       struct mmc_card *card = container_of(dev, struct mmc_card, dev);\
-       return sprintf(buf, fmt, args);                                 \
-}
-
-#define MMC_ATTR_RO(name) __ATTR(name, S_IRUGO, mmc_##name##_show, NULL)
-
-int mmc_add_attrs(struct mmc_card *card, struct device_attribute *attrs);
-void mmc_remove_attrs(struct mmc_card *card, struct device_attribute *attrs);
-
-#endif
index 2c925b7..257f5d8 100644 (file)
@@ -88,6 +88,15 @@ MODULE_LICENSE("GPL");
 #define _LTAG_MEM32RANGE       0x85
 #define _LTAG_FIXEDMEM32RANGE  0x86
 
+/*
+ * Sizes of ISAPNP logical device configuration register sets.
+ * See PNP-ISA-v1.0a.pdf, Appendix A.
+ */
+#define ISAPNP_MAX_MEM         4
+#define ISAPNP_MAX_PORT                8
+#define ISAPNP_MAX_IRQ         2
+#define ISAPNP_MAX_DMA         2
+
 static unsigned char isapnp_checksum_value;
 static DEFINE_MUTEX(isapnp_cfg_mutex);
 static int isapnp_csn_count;
@@ -945,14 +954,14 @@ static int isapnp_read_resources(struct pnp_dev *dev,
 
        dev->active = isapnp_read_byte(ISAPNP_CFG_ACTIVATE);
        if (dev->active) {
-               for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
+               for (tmp = 0; tmp < ISAPNP_MAX_PORT; tmp++) {
                        ret = isapnp_read_word(ISAPNP_CFG_PORT + (tmp << 1));
                        if (!ret)
                                continue;
                        res->port_resource[tmp].start = ret;
                        res->port_resource[tmp].flags = IORESOURCE_IO;
                }
-               for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
+               for (tmp = 0; tmp < ISAPNP_MAX_MEM; tmp++) {
                        ret =
                            isapnp_read_word(ISAPNP_CFG_MEM + (tmp << 3)) << 8;
                        if (!ret)
@@ -960,7 +969,7 @@ static int isapnp_read_resources(struct pnp_dev *dev,
                        res->mem_resource[tmp].start = ret;
                        res->mem_resource[tmp].flags = IORESOURCE_MEM;
                }
-               for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
+               for (tmp = 0; tmp < ISAPNP_MAX_IRQ; tmp++) {
                        ret =
                            (isapnp_read_word(ISAPNP_CFG_IRQ + (tmp << 1)) >>
                             8);
@@ -970,7 +979,7 @@ static int isapnp_read_resources(struct pnp_dev *dev,
                            res->irq_resource[tmp].end = ret;
                        res->irq_resource[tmp].flags = IORESOURCE_IRQ;
                }
-               for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
+               for (tmp = 0; tmp < ISAPNP_MAX_DMA; tmp++) {
                        ret = isapnp_read_byte(ISAPNP_CFG_DMA + tmp);
                        if (ret == 4)
                                continue;
@@ -1002,14 +1011,14 @@ static int isapnp_set_resources(struct pnp_dev *dev,
        isapnp_cfg_begin(dev->card->number, dev->number);
        dev->active = 1;
        for (tmp = 0;
-            tmp < PNP_MAX_PORT
+            tmp < ISAPNP_MAX_PORT
             && (res->port_resource[tmp].
                 flags & (IORESOURCE_IO | IORESOURCE_UNSET)) == IORESOURCE_IO;
             tmp++)
                isapnp_write_word(ISAPNP_CFG_PORT + (tmp << 1),
                                  res->port_resource[tmp].start);
        for (tmp = 0;
-            tmp < PNP_MAX_IRQ
+            tmp < ISAPNP_MAX_IRQ
             && (res->irq_resource[tmp].
                 flags & (IORESOURCE_IRQ | IORESOURCE_UNSET)) == IORESOURCE_IRQ;
             tmp++) {
@@ -1019,14 +1028,14 @@ static int isapnp_set_resources(struct pnp_dev *dev,
                isapnp_write_byte(ISAPNP_CFG_IRQ + (tmp << 1), irq);
        }
        for (tmp = 0;
-            tmp < PNP_MAX_DMA
+            tmp < ISAPNP_MAX_DMA
             && (res->dma_resource[tmp].
                 flags & (IORESOURCE_DMA | IORESOURCE_UNSET)) == IORESOURCE_DMA;
             tmp++)
                isapnp_write_byte(ISAPNP_CFG_DMA + tmp,
                                  res->dma_resource[tmp].start);
        for (tmp = 0;
-            tmp < PNP_MAX_MEM
+            tmp < ISAPNP_MAX_MEM
             && (res->mem_resource[tmp].
                 flags & (IORESOURCE_MEM | IORESOURCE_UNSET)) == IORESOURCE_MEM;
             tmp++)
index 4206454..9dfb5ff 100644 (file)
@@ -527,13 +527,21 @@ struct pagemapread {
        char __user *out, *end;
 };
 
-#define PM_ENTRY_BYTES sizeof(u64)
-#define PM_RESERVED_BITS    3
-#define PM_RESERVED_OFFSET  (64 - PM_RESERVED_BITS)
-#define PM_RESERVED_MASK    (((1LL<<PM_RESERVED_BITS)-1) << PM_RESERVED_OFFSET)
-#define PM_SPECIAL(nr)      (((nr) << PM_RESERVED_OFFSET) & PM_RESERVED_MASK)
-#define PM_NOT_PRESENT      PM_SPECIAL(1LL)
-#define PM_SWAP             PM_SPECIAL(2LL)
+#define PM_ENTRY_BYTES      sizeof(u64)
+#define PM_STATUS_BITS      3
+#define PM_STATUS_OFFSET    (64 - PM_STATUS_BITS)
+#define PM_STATUS_MASK      (((1LL << PM_STATUS_BITS) - 1) << PM_STATUS_OFFSET)
+#define PM_STATUS(nr)       (((nr) << PM_STATUS_OFFSET) & PM_STATUS_MASK)
+#define PM_PSHIFT_BITS      6
+#define PM_PSHIFT_OFFSET    (PM_STATUS_OFFSET - PM_PSHIFT_BITS)
+#define PM_PSHIFT_MASK      (((1LL << PM_PSHIFT_BITS) - 1) << PM_PSHIFT_OFFSET)
+#define PM_PSHIFT(x)        (((u64) (x) << PM_PSHIFT_OFFSET) & PM_PSHIFT_MASK)
+#define PM_PFRAME_MASK      ((1LL << PM_PSHIFT_OFFSET) - 1)
+#define PM_PFRAME(x)        ((x) & PM_PFRAME_MASK)
+
+#define PM_PRESENT          PM_STATUS(4LL)
+#define PM_SWAP             PM_STATUS(2LL)
+#define PM_NOT_PRESENT      PM_PSHIFT(PAGE_SHIFT)
 #define PM_END_OF_BUFFER    1
 
 static int add_to_pagemap(unsigned long addr, u64 pfn,
@@ -574,7 +582,7 @@ static int pagemap_pte_hole(unsigned long start, unsigned long end,
 u64 swap_pte_to_pagemap_entry(pte_t pte)
 {
        swp_entry_t e = pte_to_swp_entry(pte);
-       return PM_SWAP | swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT);
+       return swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT);
 }
 
 static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
@@ -588,9 +596,11 @@ static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
                u64 pfn = PM_NOT_PRESENT;
                pte = pte_offset_map(pmd, addr);
                if (is_swap_pte(*pte))
-                       pfn = swap_pte_to_pagemap_entry(*pte);
+                       pfn = PM_PFRAME(swap_pte_to_pagemap_entry(*pte))
+                               | PM_PSHIFT(PAGE_SHIFT) | PM_SWAP;
                else if (pte_present(*pte))
-                       pfn = pte_pfn(*pte);
+                       pfn = PM_PFRAME(pte_pfn(*pte))
+                               | PM_PSHIFT(PAGE_SHIFT) | PM_PRESENT;
                /* unmap so we're not in atomic when we copy to userspace */
                pte_unmap(pte);
                err = add_to_pagemap(addr, pfn, pm);
@@ -611,12 +621,20 @@ static struct mm_walk pagemap_walk = {
 /*
  * /proc/pid/pagemap - an array mapping virtual pages to pfns
  *
- * For each page in the address space, this file contains one 64-bit
- * entry representing the corresponding physical page frame number
- * (PFN) if the page is present. If there is a swap entry for the
- * physical page, then an encoding of the swap file number and the
- * page's offset into the swap file are returned. If no page is
- * present at all, PM_NOT_PRESENT is returned. This allows determining
+ * For each page in the address space, this file contains one 64-bit entry
+ * consisting of the following:
+ *
+ * Bits 0-55  page frame number (PFN) if present
+ * Bits 0-4   swap type if swapped
+ * Bits 5-55  swap offset if swapped
+ * Bits 55-60 page shift (page size = 1<<page shift)
+ * Bit  61    reserved for future use
+ * Bit  62    page swapped
+ * Bit  63    page present
+ *
+ * If the page is not present but in swap, then the PFN contains an
+ * encoding of the swap file number and the page's offset into the
+ * swap. Unmapped pages return a null PFN. This allows determining
  * precisely which pages are mapped (or in swap) and comparing mapped
  * pages between processes.
  *
index cd6332b..29dd558 100644 (file)
@@ -14,7 +14,7 @@
 #include <linux/mod_devicetable.h>
 
 #define PNP_MAX_PORT           40
-#define PNP_MAX_MEM            12
+#define PNP_MAX_MEM            24
 #define PNP_MAX_IRQ            2
 #define PNP_MAX_DMA            2
 #define PNP_NAME_LEN           50