---

yaml --- r: 73580 b: refs/heads/master c: dbb2ed2 h: refs/heads/master v: v3
git-mirror · Nov 13, 2007 · 381aae9 · 381aae9
1 parent 532d152
commit 381aae9
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Showing 17 changed files with 169 additions and 54 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a7fe77161da48a74c60dc19fc4ca3a73ab761d37
+refs/heads/master: dbb2ed24851a290616d66212dc75373fd863d636
diff --git a/trunk/arch/powerpc/Makefile b/trunk/arch/powerpc/Makefile
@@ -107,9 +107,6 @@ endif
 # No AltiVec instruction when building kernel
 KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
 
-# No SPE instruction when building kernel
-KBUILD_CFLAGS += $(call cc-option,-mno-spe)
-
 # Enable unit-at-a-time mode when possible. It shrinks the
 # kernel considerably.
 KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)

diff --git a/trunk/arch/powerpc/kernel/btext.c b/trunk/arch/powerpc/kernel/btext.c
@@ -186,9 +186,7 @@ int btext_initialize(struct device_node *np)
 		pitch = *prop;
 	if (pitch == 1)
 		pitch = 0x1000;
-	prop = of_get_property(np, "linux,bootx-addr", NULL);
-	if (prop == NULL)
-		prop = of_get_property(np, "address", NULL);
+	prop = of_get_property(np, "address", NULL);
 	if (prop)
 		address = *prop;
 

diff --git a/trunk/arch/powerpc/kernel/entry_32.S b/trunk/arch/powerpc/kernel/entry_32.S
@@ -251,9 +251,6 @@ syscall_exit_cont:
 	bne-	2f
 1:
 #endif /* CONFIG_44x */
-BEGIN_FTR_SECTION
-	lwarx	r7,0,r1
-END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
 	stwcx.	r0,0,r1			/* to clear the reservation */
 	lwz	r4,_LINK(r1)
 	lwz	r5,_CCR(r1)
@@ -720,9 +717,6 @@ restore:
 	mtctr	r11
 
 	PPC405_ERR77(0,r1)
-BEGIN_FTR_SECTION
-	lwarx	r11,0,r1
-END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
 	stwcx.	r0,0,r1			/* to clear the reservation */
 
 #if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))

diff --git a/trunk/arch/powerpc/kernel/time.c b/trunk/arch/powerpc/kernel/time.c
@@ -829,7 +829,7 @@ static void register_decrementer_clockevent(int cpu)
 	*dec = decrementer_clockevent;
 	dec->cpumask = cpumask_of_cpu(cpu);
 
-	printk(KERN_DEBUG "clockevent: %s mult[%lx] shift[%d] cpu[%d]\n",
+	printk(KERN_INFO "clockevent: %s mult[%lx] shift[%d] cpu[%d]\n",
 	       dec->name, dec->mult, dec->shift, cpu);
 
 	clockevents_register_device(dec);

diff --git a/trunk/arch/powerpc/mm/init_64.c b/trunk/arch/powerpc/mm/init_64.c
@@ -19,6 +19,8 @@
  *
  */
 
+#undef DEBUG
+
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -64,6 +66,12 @@
 
 #include "mmu_decl.h"
 
+#ifdef DEBUG
+#define DBG(fmt...) printk(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
 #if PGTABLE_RANGE > USER_VSID_RANGE
 #warning Limited user VSID range means pagetable space is wasted
 #endif
@@ -167,8 +175,8 @@ void pgtable_cache_init(void)
 		int size = pgtable_cache_size[i];
 		const char *name = pgtable_cache_name[i];
 
-		pr_debug("Allocating page table cache %s (#%d) "
-			"for size: %08x...\n", name, i, size);
+		DBG("Allocating page table cache %s (#%d) "
+		    "for size: %08x...\n", name, i, size);
 		pgtable_cache[i] = kmem_cache_create(name,
 						     size, size,
 						     SLAB_PANIC,
@@ -231,8 +239,8 @@ int __meminit vmemmap_populate(struct page *start_page,
 		if (!p)
 			return -ENOMEM;
 
-		pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n",
-			start, p, __pa(p));
+		printk(KERN_WARNING "vmemmap %08lx allocated at %p, "
+		                    "physical %08lx.\n", start, p, __pa(p));
 
 		mapped = htab_bolt_mapping(start, start + page_size,
 					__pa(p), mode_rw, mmu_linear_psize,

diff --git a/trunk/arch/powerpc/mm/tlb_64.c b/trunk/arch/powerpc/mm/tlb_64.c
@@ -54,10 +54,12 @@ unsigned long pte_freelist_forced_free;
 	((PAGE_SIZE - sizeof(struct pte_freelist_batch)) \
 	  / sizeof(pgtable_free_t))
 
+#ifdef CONFIG_SMP
 static void pte_free_smp_sync(void *arg)
 {
 	/* Do nothing, just ensure we sync with all CPUs */
 }
+#endif
 
 /* This is only called when we are critically out of memory
  * (and fail to get a page in pte_free_tlb).

diff --git a/trunk/arch/powerpc/sysdev/cpm_common.c b/trunk/arch/powerpc/sysdev/cpm_common.c
@@ -77,6 +77,8 @@ int __init cpm_muram_init(void)
 	int i = 0;
 	int ret = 0;
 
+	printk("cpm_muram_init\n");
+
 	spin_lock_init(&cpm_muram_lock);
 	/* initialize the info header */
 	rh_init(&cpm_muram_info, 1,
@@ -191,7 +193,7 @@ void __iomem *cpm_muram_addr(unsigned long offset)
 EXPORT_SYMBOL(cpm_muram_addr);
 
 /**
- * cpm_muram_dma - turn a muram virtual address into a DMA address
+ * cpm_muram_phys - turn a muram virtual address into a DMA address
  * @offset: virtual address from cpm_muram_addr() to convert
  */
 dma_addr_t cpm_muram_dma(void __iomem *addr)

diff --git a/trunk/arch/ppc/kernel/entry.S b/trunk/arch/ppc/kernel/entry.S
@@ -251,9 +251,6 @@ syscall_exit_cont:
 	bne-	2f
 1:
 #endif /* CONFIG_44x */
-BEGIN_FTR_SECTION
-	lwarx	r7,0,r1
-END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
 	stwcx.	r0,0,r1			/* to clear the reservation */
 	lwz	r4,_LINK(r1)
 	lwz	r5,_CCR(r1)
@@ -716,9 +713,6 @@ restore:
 	mtctr	r11
 
 	PPC405_ERR77(0,r1)
-BEGIN_FTR_SECTION
-	lwarx	r11,0,r1
-END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
 	stwcx.	r0,0,r1			/* to clear the reservation */
 
 #if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))

diff --git a/trunk/drivers/acpi/battery.c b/trunk/drivers/acpi/battery.c
@@ -132,19 +132,18 @@ static int acpi_battery_technology(struct acpi_battery *battery)
 	return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
 }
 
-static int acpi_battery_get_state(struct acpi_battery *battery);
+static int acpi_battery_update(struct acpi_battery *battery);
 
 static int acpi_battery_get_property(struct power_supply *psy,
 				     enum power_supply_property psp,
 				     union power_supply_propval *val)
 {
 	struct acpi_battery *battery = to_acpi_battery(psy);
 
-	if (acpi_battery_present(battery)) {
-		/* run battery update only if it is present */
-		acpi_battery_get_state(battery);
-	} else if (psp != POWER_SUPPLY_PROP_PRESENT)
+	if ((!acpi_battery_present(battery)) &&
+	     psp != POWER_SUPPLY_PROP_PRESENT)
 		return -ENODEV;
+	acpi_battery_update(battery);
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
 		if (battery->state & 0x01)
@@ -458,7 +457,6 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
 		return;
 	device_remove_file(battery->bat.dev, &alarm_attr);
 	power_supply_unregister(&battery->bat);
-	battery->bat.dev = NULL;
 }
 
 static int acpi_battery_update(struct acpi_battery *battery)

diff --git a/trunk/fs/ext2/balloc.c b/trunk/fs/ext2/balloc.c
@@ -69,6 +69,14 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
 	return desc + offset;
 }
 
+static inline int
+block_in_use(unsigned long block, struct super_block *sb, unsigned char *map)
+{
+	return ext2_test_bit ((block -
+		le32_to_cpu(EXT2_SB(sb)->s_es->s_first_data_block)) %
+			 EXT2_BLOCKS_PER_GROUP(sb), map);
+}
+
 /*
  * Read the bitmap for a given block_group, reading into the specified 
  * slot in the superblock's bitmap cache.
@@ -78,20 +86,51 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
 static struct buffer_head *
 read_block_bitmap(struct super_block *sb, unsigned int block_group)
 {
+	int i;
 	struct ext2_group_desc * desc;
 	struct buffer_head * bh = NULL;
-
+	unsigned int bitmap_blk;
+
 	desc = ext2_get_group_desc (sb, block_group, NULL);
 	if (!desc)
-		goto error_out;
-	bh = sb_bread(sb, le32_to_cpu(desc->bg_block_bitmap));
+		return NULL;
+	bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
+	bh = sb_bread(sb, bitmap_blk);
 	if (!bh)
-		ext2_error (sb, "read_block_bitmap",
+		ext2_error (sb, __FUNCTION__,
 			    "Cannot read block bitmap - "
 			    "block_group = %d, block_bitmap = %u",
 			    block_group, le32_to_cpu(desc->bg_block_bitmap));
-error_out:
+
+	/* check whether block bitmap block number is set */
+	if (!block_in_use(bitmap_blk, sb, bh->b_data)) {
+		/* bad block bitmap */
+		goto error_out;
+	}
+	/* check whether the inode bitmap block number is set */
+	bitmap_blk = le32_to_cpu(desc->bg_inode_bitmap);
+	if (!block_in_use(bitmap_blk, sb, bh->b_data)) {
+		/* bad block bitmap */
+		goto error_out;
+	}
+	/* check whether the inode table block number is set */
+	bitmap_blk = le32_to_cpu(desc->bg_inode_table);
+	for (i = 0; i < EXT2_SB(sb)->s_itb_per_group; i++, bitmap_blk++) {
+		if (!block_in_use(bitmap_blk, sb, bh->b_data)) {
+			/* bad block bitmap */
+			goto error_out;
+		}
+	}
+
 	return bh;
+
+error_out:
+	brelse(bh);
+	ext2_error(sb, __FUNCTION__,
+			"Invalid block bitmap - "
+			"block_group = %d, block = %u",
+			block_group, bitmap_blk);
+	return NULL;
 }
 
 static void release_blocks(struct super_block *sb, int count)
@@ -1422,6 +1461,7 @@ unsigned long ext2_count_free_blocks (struct super_block * sb)
 #endif
 }
 
+
 static inline int test_root(int a, int b)
 {
 	int num = b;

diff --git a/trunk/fs/ext3/balloc.c b/trunk/fs/ext3/balloc.c
@@ -80,6 +80,14 @@ struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
 	return desc + offset;
 }
 
+static inline int
+block_in_use(ext3_fsblk_t block, struct super_block *sb, unsigned char *map)
+{
+	return ext3_test_bit ((block -
+		le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block)) %
+			 EXT3_BLOCKS_PER_GROUP(sb), map);
+}
+
 /**
  * read_block_bitmap()
  * @sb:			super block
@@ -93,20 +101,51 @@ struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
 static struct buffer_head *
 read_block_bitmap(struct super_block *sb, unsigned int block_group)
 {
+	int i;
 	struct ext3_group_desc * desc;
 	struct buffer_head * bh = NULL;
+	ext3_fsblk_t bitmap_blk;
 
 	desc = ext3_get_group_desc (sb, block_group, NULL);
 	if (!desc)
-		goto error_out;
-	bh = sb_bread(sb, le32_to_cpu(desc->bg_block_bitmap));
+		return NULL;
+	bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
+	bh = sb_bread(sb, bitmap_blk);
 	if (!bh)
-		ext3_error (sb, "read_block_bitmap",
+		ext3_error (sb, __FUNCTION__,
 			    "Cannot read block bitmap - "
 			    "block_group = %d, block_bitmap = %u",
 			    block_group, le32_to_cpu(desc->bg_block_bitmap));
-error_out:
+
+	/* check whether block bitmap block number is set */
+	if (!block_in_use(bitmap_blk, sb, bh->b_data)) {
+		/* bad block bitmap */
+		goto error_out;
+	}
+	/* check whether the inode bitmap block number is set */
+	bitmap_blk = le32_to_cpu(desc->bg_inode_bitmap);
+	if (!block_in_use(bitmap_blk, sb, bh->b_data)) {
+		/* bad block bitmap */
+		goto error_out;
+	}
+	/* check whether the inode table block number is set */
+	bitmap_blk = le32_to_cpu(desc->bg_inode_table);
+	for (i = 0; i < EXT3_SB(sb)->s_itb_per_group; i++, bitmap_blk++) {
+		if (!block_in_use(bitmap_blk, sb, bh->b_data)) {
+			/* bad block bitmap */
+			goto error_out;
+		}
+	}
+
 	return bh;
+
+error_out:
+	brelse(bh);
+	ext3_error(sb, __FUNCTION__,
+			"Invalid block bitmap - "
+			"block_group = %d, block = %lu",
+			block_group, bitmap_blk);
+	return NULL;
 }
 /*
  * The reservation window structure operations
@@ -1733,6 +1772,7 @@ ext3_fsblk_t ext3_count_free_blocks(struct super_block *sb)
 #endif
 }
 
+
 static inline int test_root(int a, int b)
 {
 	int num = b;