Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6: (46 commits)
  [MTD] [MAPS] drivers/mtd/maps/ck804xrom.c: convert pci_module_init()
  [MTD] [NAND] CM-x270 MTD driver
  [MTD] [NAND] Wrong calculation of page number in nand_block_bad()
  [MTD] [MAPS] fix plat-ram printk format
  [JFFS2] Fix compr_rubin.c build after include file elimination.
  [JFFS2] Handle inodes with only a single metadata node with non-zero isize
  [JFFS2] Tidy up licensing/copyright boilerplate.
  [MTD] [OneNAND] Exit loop only when column start with 0
  [MTD] [OneNAND] Fix access the past of the real oobfree array
  [MTD] [OneNAND] Update Samsung OneNAND official URL
  [JFFS2] Better fix for all-zero node headers
  [JFFS2] Improve read_inode memory usage, v2.
  [JFFS2] Improve failure mode if inode checking leaves unchecked space.
  [JFFS2] Fix cross-endian build.
  [MTD] Finish conversion mtd_blkdevs to use the kthread API
  [JFFS2] Obsolete dirent nodes immediately on unlink, where possible.
  Use menuconfig objects: MTD
  [MTD] mtd_blkdevs: Convert to use the kthread API
  [MTD] Fix fwh_lock locking
  [JFFS2] Speed up mount for directly-mapped NOR flash
  ...

drivers/mtd/Kconfig

 # $Id: Kconfig,v 1.11 2005/11/07 11:14:19 gleixner Exp $
 
-menu "Memory Technology Devices (MTD)"
-
-config MTD
+menuconfig MTD
 	tristate "Memory Technology Device (MTD) support"
 	help
 	  Memory Technology Devices are flash, RAM and similar chips, often
@@ -13,9 +11,10 @@ config MTD
 	  them. It will also allow you to select individual drivers for
 	  particular hardware and users of MTD devices. If unsure, say N.
 
+if MTD
+
 config MTD_DEBUG
 	bool "Debugging"
-	depends on MTD
 	help
 	  This turns on low-level debugging for the entire MTD sub-system.
 	  Normally, you should say 'N'.
@@ -29,7 +28,6 @@ config MTD_DEBUG_VERBOSE
 
 config MTD_CONCAT
 	tristate "MTD concatenating support"
-	depends on MTD
 	help
 	  Support for concatenating several MTD devices into a single
 	  (virtual) one. This allows you to have -for example- a JFFS(2)
@@ -38,7 +36,6 @@ config MTD_CONCAT
 
 config MTD_PARTITIONS
 	bool "MTD partitioning support"
-	depends on MTD
 	help
 	  If you have a device which needs to divide its flash chip(s) up
 	  into multiple 'partitions', each of which appears to the user as
@@ -153,11 +150,9 @@ config MTD_AFS_PARTS
 	  'armflash' map driver (CONFIG_MTD_ARMFLASH) does this, for example.
 
 comment "User Modules And Translation Layers"
-	depends on MTD
 
 config MTD_CHAR
 	tristate "Direct char device access to MTD devices"
-	depends on MTD
 	help
 	  This provides a character device for each MTD device present in
 	  the system, allowing the user to read and write directly to the
@@ -166,12 +161,12 @@ config MTD_CHAR
 
 config MTD_BLKDEVS
 	tristate "Common interface to block layer for MTD 'translation layers'"
-	depends on MTD && BLOCK
+	depends on BLOCK
 	default n
 
 config MTD_BLOCK
 	tristate "Caching block device access to MTD devices"
-	depends on MTD && BLOCK
+	depends on BLOCK
 	select MTD_BLKDEVS
 	---help---
 	  Although most flash chips have an erase size too large to be useful
@@ -194,7 +189,7 @@ config MTD_BLOCK
 
 config MTD_BLOCK_RO
 	tristate "Readonly block device access to MTD devices"
-	depends on MTD_BLOCK!=y && MTD && BLOCK
+	depends on MTD_BLOCK!=y && BLOCK
 	select MTD_BLKDEVS
 	help
 	  This allows you to mount read-only file systems (such as cramfs)
@@ -206,7 +201,7 @@ config MTD_BLOCK_RO
 
 config FTL
 	tristate "FTL (Flash Translation Layer) support"
-	depends on MTD && BLOCK
+	depends on BLOCK
 	select MTD_BLKDEVS
 	---help---
 	  This provides support for the original Flash Translation Layer which
@@ -223,7 +218,7 @@ config FTL
 
 config NFTL
 	tristate "NFTL (NAND Flash Translation Layer) support"
-	depends on MTD && BLOCK
+	depends on BLOCK
 	select MTD_BLKDEVS
 	---help---
 	  This provides support for the NAND Flash Translation Layer which is
@@ -247,7 +242,7 @@ config NFTL_RW
 
 config INFTL
 	tristate "INFTL (Inverse NAND Flash Translation Layer) support"
-	depends on MTD && BLOCK
+	depends on BLOCK
 	select MTD_BLKDEVS
 	---help---
 	  This provides support for the Inverse NAND Flash Translation
@@ -265,7 +260,7 @@ config INFTL
 
 config RFD_FTL
         tristate "Resident Flash Disk (Flash Translation Layer) support"
-	depends on MTD && BLOCK
+	depends on BLOCK
 	select MTD_BLKDEVS
 	---help---
 	  This provides support for the flash translation layer known
@@ -276,7 +271,7 @@ config RFD_FTL
 
 config SSFDC
 	tristate "NAND SSFDC (SmartMedia) read only translation layer"
-	depends on MTD && BLOCK
+	depends on BLOCK
 	select MTD_BLKDEVS
 	help
 	  This enables read only access to SmartMedia formatted NAND
@@ -294,5 +289,4 @@ source "drivers/mtd/onenand/Kconfig"
 
 source "drivers/mtd/ubi/Kconfig"
 
-endmenu
-
+endif # MTD

drivers/mtd/chips/Kconfig

@@ -6,7 +6,6 @@ menu "RAM/ROM/Flash chip drivers"
 
 config MTD_CFI
 	tristate "Detect flash chips by Common Flash Interface (CFI) probe"
-	depends on MTD
 	select MTD_GEN_PROBE
 	help
 	  The Common Flash Interface specification was developed by Intel,
@@ -18,7 +17,6 @@ config MTD_CFI
 
 config MTD_JEDECPROBE
 	tristate "Detect non-CFI AMD/JEDEC-compatible flash chips"
-	depends on MTD
 	select MTD_GEN_PROBE
 	help
 	  This option enables JEDEC-style probing of flash chips which are not
@@ -213,21 +211,18 @@ config MTD_CFI_UTIL
 
 config MTD_RAM
 	tristate "Support for RAM chips in bus mapping"
-	depends on MTD
 	help
 	  This option enables basic support for RAM chips accessed through
 	  a bus mapping driver.
 
 config MTD_ROM
 	tristate "Support for ROM chips in bus mapping"
-	depends on MTD
 	help
 	  This option enables basic support for ROM chips accessed through
 	  a bus mapping driver.
 
 config MTD_ABSENT
 	tristate "Support for absent chips in bus mapping"
-	depends on MTD
 	help
 	  This option enables support for a dummy probing driver used to
 	  allocated placeholder MTD devices on systems that have socketed
@@ -237,7 +232,6 @@ config MTD_ABSENT
 	  with this driver will return -ENODEV upon access.
 
 config MTD_OBSOLETE_CHIPS
-	depends on MTD
 	bool "Older (theoretically obsoleted now) drivers for non-CFI chips"
 	help
 	  This option does not enable any code directly, but will allow you to
@@ -250,7 +244,7 @@ config MTD_OBSOLETE_CHIPS
 
 config MTD_AMDSTD
 	tristate "AMD compatible flash chip support (non-CFI)"
-	depends on MTD && MTD_OBSOLETE_CHIPS && BROKEN
+	depends on MTD_OBSOLETE_CHIPS && BROKEN
 	help
 	  This option enables support for flash chips using AMD-compatible
 	  commands, including some which are not CFI-compatible and hence
@@ -260,7 +254,7 @@ config MTD_AMDSTD
 
 config MTD_SHARP
 	tristate "pre-CFI Sharp chip support"
-	depends on MTD && MTD_OBSOLETE_CHIPS
+	depends on MTD_OBSOLETE_CHIPS
 	help
 	  This option enables support for flash chips using Sharp-compatible
 	  commands, including some which are not CFI-compatible and hence
@@ -268,7 +262,7 @@ config MTD_SHARP
 
 config MTD_JEDEC
 	tristate "JEDEC device support"
-	depends on MTD && MTD_OBSOLETE_CHIPS && BROKEN
+	depends on MTD_OBSOLETE_CHIPS && BROKEN
 	help
 	  Enable older JEDEC flash interface devices for self
 	  programming flash.  It is commonly used in older AMD chips.  It is

drivers/mtd/chips/cfi_cmdset_0001.c

@@ -15,6 +15,8 @@
  *	- optimized write buffer method
  * 02/05/2002	Christopher Hoover <ch@hpl.hp.com>/<ch@murgatroid.com>
  *	- reworked lock/unlock/erase support for var size flash
+ * 21/03/2007   Rodolfo Giometti <giometti@linux.it>
+ * 	- auto unlock sectors on resume for auto locking flash on power up
  */
 
 #include <linux/module.h>
@@ -30,6 +32,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/reboot.h>
+#include <linux/bitmap.h>
 #include <linux/mtd/xip.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/mtd.h>
@@ -220,6 +223,15 @@ static void fixup_use_write_buffers(struct mtd_info *mtd, void *param)
 	}
 }
 
+/*
+ * Some chips power-up with all sectors locked by default.
+ */
+static void fixup_use_powerup_lock(struct mtd_info *mtd, void *param)
+{
+	printk(KERN_INFO "Using auto-unlock on power-up/resume\n" );
+	mtd->flags |= MTD_STUPID_LOCK;
+}
+
 static struct cfi_fixup cfi_fixup_table[] = {
 #ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE
 	{ CFI_MFR_ANY, CFI_ID_ANY, fixup_intel_strataflash, NULL },
@@ -232,6 +244,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
 #endif
 	{ CFI_MFR_ST, 0x00ba, /* M28W320CT */ fixup_st_m28w320ct, NULL },
 	{ CFI_MFR_ST, 0x00bb, /* M28W320CB */ fixup_st_m28w320cb, NULL },
+	{ MANUFACTURER_INTEL, 0x891c,	      fixup_use_powerup_lock, NULL, },
 	{ 0, 0, NULL, NULL }
 };
 
@@ -460,6 +473,7 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd)
 			mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].offset = (j*devsize)+offset;
 			mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].erasesize = ersize;
 			mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].numblocks = ernum;
+			mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].lockmap = kmalloc(ernum / 8 + 1, GFP_KERNEL);
 		}
 		offset += (ersize * ernum);
 	}
@@ -1825,8 +1839,7 @@ static void cfi_intelext_sync (struct mtd_info *mtd)
 	}
 }
 
-#ifdef DEBUG_LOCK_BITS
-static int __xipram do_printlockstatus_oneblock(struct map_info *map,
+static int __xipram do_getlockstatus_oneblock(struct map_info *map,
 						struct flchip *chip,
 						unsigned long adr,
 						int len, void *thunk)
@@ -1840,8 +1853,17 @@ static int __xipram do_printlockstatus_oneblock(struct map_info *map,
 	chip->state = FL_JEDEC_QUERY;
 	status = cfi_read_query(map, adr+(2*ofs_factor));
 	xip_enable(map, chip, 0);
+	return status;
+}
+
+#ifdef DEBUG_LOCK_BITS
+static int __xipram do_printlockstatus_oneblock(struct map_info *map,
+						struct flchip *chip,
+						unsigned long adr,
+						int len, void *thunk)
+{
 	printk(KERN_DEBUG "block status register for 0x%08lx is %x\n",
-	       adr, status);
+	       adr, do_getlockstatus_oneblock(map, chip, adr, len, thunk));
 	return 0;
 }
 #endif
@@ -2216,14 +2238,45 @@ static int cfi_intelext_get_user_prot_info(struct mtd_info *mtd,
 
 #endif
 
+static void cfi_intelext_save_locks(struct mtd_info *mtd)
+{
+	struct mtd_erase_region_info *region;
+	int block, status, i;
+	unsigned long adr;
+	size_t len;
+
+	for (i = 0; i < mtd->numeraseregions; i++) {
+		region = &mtd->eraseregions[i];
+		if (!region->lockmap)
+			continue;
+
+		for (block = 0; block < region->numblocks; block++){
+			len = region->erasesize;
+			adr = region->offset + block * len;
+
+			status = cfi_varsize_frob(mtd,
+					do_getlockstatus_oneblock, adr, len, 0);
+			if (status)
+				set_bit(block, region->lockmap);
+			else
+				clear_bit(block, region->lockmap);
+		}
+	}
+}
+
 static int cfi_intelext_suspend(struct mtd_info *mtd)
 {
 	struct map_info *map = mtd->priv;
 	struct cfi_private *cfi = map->fldrv_priv;
+	struct cfi_pri_intelext *extp = cfi->cmdset_priv;
 	int i;
 	struct flchip *chip;
 	int ret = 0;
 
+	if ((mtd->flags & MTD_STUPID_LOCK)
+	    && extp && (extp->FeatureSupport & (1 << 5)))
+		cfi_intelext_save_locks(mtd);
+
 	for (i=0; !ret && i<cfi->numchips; i++) {
 		chip = &cfi->chips[i];
 
@@ -2285,10 +2338,33 @@ static int cfi_intelext_suspend(struct mtd_info *mtd)
 	return ret;
 }
 
+static void cfi_intelext_restore_locks(struct mtd_info *mtd)
+{
+	struct mtd_erase_region_info *region;
+	int block, i;
+	unsigned long adr;
+	size_t len;
+
+	for (i = 0; i < mtd->numeraseregions; i++) {
+		region = &mtd->eraseregions[i];
+		if (!region->lockmap)
+			continue;
+
+		for (block = 0; block < region->numblocks; block++) {
+			len = region->erasesize;
+			adr = region->offset + block * len;
+
+			if (!test_bit(block, region->lockmap))
+				cfi_intelext_unlock(mtd, adr, len);
+		}
+	}
+}
+
 static void cfi_intelext_resume(struct mtd_info *mtd)
 {
 	struct map_info *map = mtd->priv;
 	struct cfi_private *cfi = map->fldrv_priv;
+	struct cfi_pri_intelext *extp = cfi->cmdset_priv;
 	int i;
 	struct flchip *chip;
 
@@ -2307,6 +2383,10 @@ static void cfi_intelext_resume(struct mtd_info *mtd)
 
 		spin_unlock(chip->mutex);
 	}
+
+	if ((mtd->flags & MTD_STUPID_LOCK)
+	    && extp && (extp->FeatureSupport & (1 << 5)))
+		cfi_intelext_restore_locks(mtd);
 }
 
 static int cfi_intelext_reset(struct mtd_info *mtd)
@@ -2347,12 +2427,19 @@ static void cfi_intelext_destroy(struct mtd_info *mtd)
 {
 	struct map_info *map = mtd->priv;
 	struct cfi_private *cfi = map->fldrv_priv;
+	struct mtd_erase_region_info *region;
+	int i;
 	cfi_intelext_reset(mtd);
 	unregister_reboot_notifier(&mtd->reboot_notifier);
 	kfree(cfi->cmdset_priv);
 	kfree(cfi->cfiq);
 	kfree(cfi->chips[0].priv);
 	kfree(cfi);
+	for (i = 0; i < mtd->numeraseregions; i++) {
+		region = &mtd->eraseregions[i];
+		if (region->lockmap)
+			kfree(region->lockmap);
+	}
 	kfree(mtd->eraseregions);
 }
 

drivers/mtd/chips/fwh_lock.h

@@ -65,11 +65,12 @@ static int fwh_xxlock_oneblock(struct map_info *map, struct flchip *chip,
 		return ret;
 	}
 
+	chip->oldstate = chip->state;
 	chip->state = xxlt->state;
 	map_write(map, CMD(xxlt->val), adr);
 
 	/* Done and happy. */
-	chip->state = FL_READY;
+	chip->state = chip->oldstate;
 	put_chip(map, chip, adr);
 	spin_unlock(chip->mutex);
 	return 0;

drivers/mtd/devices/Kconfig

@@ -6,7 +6,7 @@ menu "Self-contained MTD device drivers"
 
 config MTD_PMC551
 	tristate "Ramix PMC551 PCI Mezzanine RAM card support"
-	depends on MTD && PCI
+	depends on PCI
 	---help---
 	  This provides a MTD device driver for the Ramix PMC551 RAM PCI card
 	  from Ramix Inc. <http://www.ramix.com/products/memory/pmc551.html>.
@@ -40,7 +40,7 @@ config MTD_PMC551_DEBUG
 
 config MTD_MS02NV
 	tristate "DEC MS02-NV NVRAM module support"
-	depends on MTD && MACH_DECSTATION
+	depends on MACH_DECSTATION
 	help
 	  This is an MTD driver for the DEC's MS02-NV (54-20948-01) battery
 	  backed-up NVRAM module.  The module was originally meant as an NFS
@@ -54,15 +54,23 @@ config MTD_MS02NV
 
 config MTD_DATAFLASH
 	tristate "Support for AT45xxx DataFlash"
-	depends on MTD && SPI_MASTER && EXPERIMENTAL
+	depends on SPI_MASTER && EXPERIMENTAL
 	help
 	  This enables access to AT45xxx DataFlash chips, using SPI.
 	  Sometimes DataFlash chips are packaged inside MMC-format
 	  cards; at this writing, the MMC stack won't handle those.
 
+config MTD_DATAFLASH26
+	tristate "AT91RM9200 DataFlash AT26xxx"
+	depends on MTD && ARCH_AT91RM9200 && AT91_SPI
+	help
+	  This enables access to the DataFlash chip (AT26xxx) on an
+	  AT91RM9200-based board.
+	  If you have such a board and such a DataFlash, say 'Y'.
+
 config MTD_M25P80
 	tristate "Support for M25 SPI Flash"
-	depends on MTD && SPI_MASTER && EXPERIMENTAL
+	depends on SPI_MASTER && EXPERIMENTAL
 	help
 	  This enables access to ST M25P80 and similar SPI flash chips,
 	  used for program and data storage.  Set up your spi devices
@@ -70,7 +78,6 @@ config MTD_M25P80
 
 config MTD_SLRAM
 	tristate "Uncached system RAM"
-	depends on MTD
 	help
 	  If your CPU cannot cache all of the physical memory in your machine,
 	  you can still use it for storage or swap by using this driver to
@@ -78,7 +85,6 @@ config MTD_SLRAM
 
 config MTD_PHRAM
 	tristate "Physical system RAM"
-	depends on MTD
 	help
 	  This is a re-implementation of the slram driver above.
 
@@ -88,7 +94,7 @@ config MTD_PHRAM
 
 config MTD_LART
 	tristate "28F160xx flash driver for LART"
-	depends on SA1100_LART && MTD
+	depends on SA1100_LART
 	help
 	  This enables the flash driver for LART. Please note that you do
 	  not need any mapping/chip driver for LART. This one does it all
@@ -96,7 +102,6 @@ config MTD_LART
 
 config MTD_MTDRAM
 	tristate "Test driver using RAM"
-	depends on MTD
 	help
 	  This enables a test MTD device driver which uses vmalloc() to
 	  provide storage.  You probably want to say 'N' unless you're
@@ -136,7 +141,7 @@ config MTDRAM_ABS_POS
 
 config MTD_BLOCK2MTD
 	tristate "MTD using block device"
-	depends on MTD && BLOCK
+	depends on BLOCK
 	help
 	  This driver allows a block device to appear as an MTD. It would
 	  generally be used in the following cases:
@@ -150,7 +155,6 @@ comment "Disk-On-Chip Device Drivers"
 
 config MTD_DOC2000
 	tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
-	depends on MTD
 	select MTD_DOCPROBE
 	select MTD_NAND_IDS
 	---help---
@@ -173,7 +177,6 @@ config MTD_DOC2000
 
 config MTD_DOC2001
 	tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
-	depends on MTD
 	select MTD_DOCPROBE
 	select MTD_NAND_IDS
 	---help---
@@ -195,7 +198,6 @@ config MTD_DOC2001
 
 config MTD_DOC2001PLUS
 	tristate "M-Systems Disk-On-Chip Millennium Plus"
-	depends on MTD
 	select MTD_DOCPROBE
 	select MTD_NAND_IDS
 	---help---

drivers/mtd/devices/Makefile

@@ -16,4 +16,5 @@ obj-$(CONFIG_MTD_MTDRAM)	+= mtdram.o
 obj-$(CONFIG_MTD_LART)		+= lart.o
 obj-$(CONFIG_MTD_BLOCK2MTD)	+= block2mtd.o
 obj-$(CONFIG_MTD_DATAFLASH)	+= mtd_dataflash.o
+obj-$(CONFIG_MTD_DATAFLASH26)	+= at91_dataflash26.o
 obj-$(CONFIG_MTD_M25P80)	+= m25p80.o

drivers/mtd/devices/block2mtd.c

@@ -40,56 +40,9 @@ struct block2mtd_dev {
 static LIST_HEAD(blkmtd_device_list);
 
 
-#define PAGE_READAHEAD 64
-static void cache_readahead(struct address_space *mapping, int index)
+static struct page* page_read(struct address_space *mapping, int index)
 {
 	filler_t *filler = (filler_t*)mapping->a_ops->readpage;
-	int i, pagei;
-	unsigned ret = 0;
-	unsigned long end_index;
-	struct page *page;
-	LIST_HEAD(page_pool);
-	struct inode *inode = mapping->host;
-	loff_t isize = i_size_read(inode);
-
-	if (!isize) {
-		INFO("iSize=0 in cache_readahead\n");
-		return;
-	}
-
-	end_index = ((isize - 1) >> PAGE_CACHE_SHIFT);
-
-	read_lock_irq(&mapping->tree_lock);
-	for (i = 0; i < PAGE_READAHEAD; i++) {
-		pagei = index + i;
-		if (pagei > end_index) {
-			INFO("Overrun end of disk in cache readahead\n");
-			break;
-		}
-		page = radix_tree_lookup(&mapping->page_tree, pagei);
-		if (page && (!i))
-			break;
-		if (page)
-			continue;
-		read_unlock_irq(&mapping->tree_lock);
-		page = page_cache_alloc_cold(mapping);
-		read_lock_irq(&mapping->tree_lock);
-		if (!page)
-			break;
-		page->index = pagei;
-		list_add(&page->lru, &page_pool);
-		ret++;
-	}
-	read_unlock_irq(&mapping->tree_lock);
-	if (ret)
-		read_cache_pages(mapping, &page_pool, filler, NULL);
-}
-
-
-static struct page* page_readahead(struct address_space *mapping, int index)
-{
-	filler_t *filler = (filler_t*)mapping->a_ops->readpage;
-	cache_readahead(mapping, index);
 	return read_cache_page(mapping, index, filler, NULL);
 }
 
@@ -105,14 +58,14 @@ static int _block2mtd_erase(struct block2mtd_dev *dev, loff_t to, size_t len)
 	u_long *max;
 
 	while (pages) {
-		page = page_readahead(mapping, index);
+		page = page_read(mapping, index);
 		if (!page)
 			return -ENOMEM;
 		if (IS_ERR(page))
 			return PTR_ERR(page);
 
-		max = (u_long*)page_address(page) + PAGE_SIZE;
-		for (p=(u_long*)page_address(page); p<max; p++)
+		max = page_address(page) + PAGE_SIZE;
+		for (p=page_address(page); p<max; p++)
 			if (*p != -1UL) {
 				lock_page(page);
 				memset(page_address(page), 0xff, PAGE_SIZE);
@@ -174,8 +127,7 @@ static int block2mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
 			cpylen = len;	// this page
 		len = len - cpylen;
 
-		//      Get page
-		page = page_readahead(dev->blkdev->bd_inode->i_mapping, index);
+		page = page_read(dev->blkdev->bd_inode->i_mapping, index);
 		if (!page)
 			return -ENOMEM;
 		if (IS_ERR(page))
@@ -213,8 +165,7 @@ static int _block2mtd_write(struct block2mtd_dev *dev, const u_char *buf,
 			cpylen = len;			// this page
 		len = len - cpylen;
 
-		//	Get page
-		page = page_readahead(mapping, index);
+		page = page_read(mapping, index);
 		if (!page)
 			return -ENOMEM;
 		if (IS_ERR(page))
@@ -308,9 +259,9 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
 		/* We might not have rootfs mounted at this point. Try
 		   to resolve the device name by other means. */
 
-		dev_t dev = name_to_dev_t(devname);
-		if (dev != 0) {
-			bdev = open_by_devnum(dev, FMODE_WRITE | FMODE_READ);
+		dev_t devt = name_to_dev_t(devname);
+		if (devt) {
+			bdev = open_by_devnum(devt, FMODE_WRITE | FMODE_READ);
 		}
 	}
 #endif

drivers/mtd/maps/Kconfig

@@ -6,7 +6,6 @@ menu "Mapping drivers for chip access"
 
 config MTD_COMPLEX_MAPPINGS
 	bool "Support non-linear mappings of flash chips"
-	depends on MTD
 	help
 	  This causes the chip drivers to allow for complicated
 	  paged mappings of flash chips.
@@ -69,6 +68,39 @@ config MTD_PHYSMAP_OF
 	  physically into the CPU's memory. The mapping description here is
 	  taken from OF device tree.
 
+config MTD_PMC_MSP_EVM
+	tristate "CFI Flash device mapped on PMC-Sierra MSP"
+	depends on PMC_MSP && MTD_CFI
+	select MTD_PARTITIONS
+	help
+	  This provides a 'mapping' driver which support the way
+          in which user-programmable flash chips are connected on the
+          PMC-Sierra MSP eval/demo boards
+
+choice
+	prompt "Maximum mappable memory avialable for flash IO"
+	depends on MTD_PMC_MSP_EVM
+	default MSP_FLASH_MAP_LIMIT_32M
+
+config MSP_FLASH_MAP_LIMIT_32M
+	bool "32M"
+
+endchoice
+
+config MSP_FLASH_MAP_LIMIT
+	hex
+	default "0x02000000"
+	depends on MSP_FLASH_MAP_LIMIT_32M
+
+config MTD_PMC_MSP_RAMROOT
+	tristate "Embedded RAM block device for root on PMC-Sierra MSP"
+	depends on PMC_MSP_EMBEDDED_ROOTFS && \
+			(MTD_BLOCK || MTD_BLOCK_RO) && \
+			MTD_RAM
+	help
+	  This provides support for the embedded root file system
+          on PMC MSP devices.  This memory is mapped as a MTD block device.
+
 config MTD_SUN_UFLASH
 	tristate "Sun Microsystems userflash support"
 	depends on SPARC && MTD_CFI
@@ -240,13 +272,13 @@ config MTD_NETtel
 
 config MTD_ALCHEMY
 	tristate "AMD Alchemy Pb1xxx/Db1xxx/RDK MTD support"
-	depends on SOC_AU1X00
+	depends on SOC_AU1X00 && MTD_PARTITIONS && MTD_CFI
 	help
 	  Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards
 
 config MTD_MTX1
 	tristate "4G Systems MTX-1 Flash device"
-	depends on MIPS && MIPS_MTX1
+	depends on MIPS_MTX1 && MTD_CFI
 	help
 	  Flash memory access on 4G Systems MTX-1 Board. If you have one of
 	  these boards and would like to use the flash chips on it, say 'Y'.
@@ -384,7 +416,7 @@ config MTD_TQM834x
 
 config MTD_OCELOT
 	tristate "Momenco Ocelot boot flash device"
-	depends on MIPS && MOMENCO_OCELOT
+	depends on MOMENCO_OCELOT
 	help
 	  This enables access routines for the boot flash device and for the
 	  NVRAM on the Momenco Ocelot board. If you have one of these boards
@@ -517,7 +549,7 @@ config MTD_OMAP_NOR
 # This needs CFI or JEDEC, depending on the cards found.
 config MTD_PCI
 	tristate "PCI MTD driver"
-	depends on MTD && PCI && MTD_COMPLEX_MAPPINGS
+	depends on PCI && MTD_COMPLEX_MAPPINGS
 	help
 	  Mapping for accessing flash devices on add-in cards like the Intel XScale
 	  IQ80310 card, and the Intel EBSA285 card in blank ROM programming mode
@@ -527,7 +559,7 @@ config MTD_PCI
 
 config MTD_PCMCIA
 	tristate "PCMCIA MTD driver"
-	depends on MTD && PCMCIA && MTD_COMPLEX_MAPPINGS && BROKEN
+	depends on PCMCIA && MTD_COMPLEX_MAPPINGS && BROKEN
 	help
 	  Map driver for accessing PCMCIA linear flash memory cards. These
 	  cards are usually around 4-16MiB in size. This does not include
@@ -591,13 +623,12 @@ config MTD_BAST_MAXSIZE
 
 config MTD_SHARP_SL
 	bool "ROM mapped on Sharp SL Series"
-	depends on MTD && ARCH_PXA
+	depends on ARCH_PXA
 	help
 	  This enables access to the flash chip on the Sharp SL Series of PDAs.
 
 config MTD_PLATRAM
 	tristate "Map driver for platform device RAM (mtd-ram)"
-	depends on MTD
 	select MTD_RAM
 	help
 	  Map driver for RAM areas described via the platform device

drivers/mtd/maps/Makefile

@@ -27,6 +27,8 @@ obj-$(CONFIG_MTD_CEIVA)		+= ceiva.o
 obj-$(CONFIG_MTD_OCTAGON)	+= octagon-5066.o
 obj-$(CONFIG_MTD_PHYSMAP)	+= physmap.o
 obj-$(CONFIG_MTD_PHYSMAP_OF)	+= physmap_of.o
+obj-$(CONFIG_MTD_PMC_MSP_EVM)   += pmcmsp-flash.o
+obj-$(CONFIG_MTD_PMC_MSP_RAMROOT)+= pmcmsp-ramroot.o
 obj-$(CONFIG_MTD_PNC2000)	+= pnc2000.o
 obj-$(CONFIG_MTD_PCMCIA)	+= pcmciamtd.o
 obj-$(CONFIG_MTD_RPXLITE)	+= rpxlite.o

drivers/mtd/maps/alchemy-flash.c

 /*
  * Flash memory access on AMD Alchemy evaluation boards
  *
- * $Id: alchemy-flash.c,v 1.2 2005/11/07 11:14:26 gleixner Exp $
- *
  * (C) 2003, 2004 Pete Popov <ppopov@embeddedalley.com>
- *
  */
 
 #include <linux/init.h>
@@ -18,12 +15,6 @@
 
 #include <asm/io.h>
 
-#ifdef 	DEBUG_RW
-#define	DBG(x...)	printk(x)
-#else
-#define	DBG(x...)
-#endif
-
 #ifdef CONFIG_MIPS_PB1000
 #define BOARD_MAP_NAME "Pb1000 Flash"
 #define BOARD_FLASH_SIZE 0x00800000 /* 8MB */

drivers/mtd/maps/ck804xrom.c

@@ -338,7 +338,7 @@ static int __init init_ck804xrom(void)
 	}
 	return -ENXIO;
 #if 0
-	return pci_module_init(&ck804xrom_driver);
+	return pci_register_driver(&ck804xrom_driver);
 #endif
 }
 

drivers/mtd/maps/plat-ram.c

@@ -169,7 +169,8 @@ static int platram_probe(struct platform_device *pdev)
 		goto exit_free;
 	}
 
-	dev_dbg(&pdev->dev, "got platform resource %p (0x%lx)\n", res, res->start);
+	dev_dbg(&pdev->dev, "got platform resource %p (0x%llx)\n", res,
+		(unsigned long long)res->start);
 
 	/* setup map parameters */
 

drivers/mtd/maps/pmcmsp-flash.c

+/*
+ * Mapping of a custom board with both AMD CFI and JEDEC flash in partitions.
+ * Config with both CFI and JEDEC device support.
+ *
+ * Basically physmap.c with the addition of partitions and
+ * an array of mapping info to accomodate more than one flash type per board.
+ *
+ * Copyright 2005-2007 PMC-Sierra, Inc.
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/io.h>
+
+#include <msp_prom.h>
+#include <msp_regs.h>
+
+
+static struct mtd_info **msp_flash;
+static struct mtd_partition **msp_parts;
+static struct map_info *msp_maps;
+static int fcnt;
+
+#define DEBUG_MARKER printk(KERN_NOTICE "%s[%d]\n",__FUNCTION__,__LINE__)
+
+int __init init_msp_flash(void)
+{
+	int i, j;
+	int offset, coff;
+	char *env;
+	int pcnt;
+	char flash_name[] = "flash0";
+	char part_name[] = "flash0_0";
+	unsigned addr, size;
+
+	/* If ELB is disabled by "ful-mux" mode, we can't get at flash */
+	if ((*DEV_ID_REG & DEV_ID_SINGLE_PC) &&
+	    (*ELB_1PC_EN_REG & SINGLE_PCCARD)) {
+		printk(KERN_NOTICE "Single PC Card mode: no flash access\n");
+		return -ENXIO;
+	}
+
+	/* examine the prom environment for flash devices */
+	for (fcnt = 0; (env = prom_getenv(flash_name)); fcnt++)
+		flash_name[5] = '0' + fcnt + 1;
+
+	if (fcnt < 1)
+		return -ENXIO;
+
+	printk(KERN_NOTICE "Found %d PMC flash devices\n", fcnt);
+	msp_flash = (struct mtd_info **)kmalloc(
+			fcnt * sizeof(struct map_info *), GFP_KERNEL);
+	msp_parts = (struct mtd_partition **)kmalloc(
+			fcnt * sizeof(struct mtd_partition *), GFP_KERNEL);
+	msp_maps = (struct map_info *)kmalloc(
+			fcnt * sizeof(struct mtd_info), GFP_KERNEL);
+	memset(msp_maps, 0, fcnt * sizeof(struct mtd_info));
+
+	/* loop over the flash devices, initializing each */
+	for (i = 0; i < fcnt; i++) {
+		/* examine the prom environment for flash partititions */
+		part_name[5] = '0' + i;
+		part_name[7] = '0';
+		for (pcnt = 0; (env = prom_getenv(part_name)); pcnt++)
+			part_name[7] = '0' + pcnt + 1;
+
+		if (pcnt == 0) {
+			printk(KERN_NOTICE "Skipping flash device %d "
+				"(no partitions defined)\n", i);
+			continue;
+		}
+
+		msp_parts[i] = (struct mtd_partition *)kmalloc(
+			pcnt * sizeof(struct mtd_partition), GFP_KERNEL);
+		memset(msp_parts[i], 0, pcnt * sizeof(struct mtd_partition));
+
+		/* now initialize the devices proper */
+		flash_name[5] = '0' + i;
+		env = prom_getenv(flash_name);
+
+		if (sscanf(env, "%x:%x", &addr, &size) < 2)
+			return -ENXIO;
+		addr = CPHYSADDR(addr);
+
+		printk(KERN_NOTICE
+			"MSP flash device \"%s\": 0x%08x at 0x%08x\n",
+			flash_name, size, addr);
+		/* This must matchs the actual size of the flash chip */
+		msp_maps[i].size = size;
+		msp_maps[i].phys = addr;
+
+		/*
+		 * Platforms have a specific limit of the size of memory
+		 * which may be mapped for flash:
+		 */
+		if (size > CONFIG_MSP_FLASH_MAP_LIMIT)
+			size = CONFIG_MSP_FLASH_MAP_LIMIT;
+		msp_maps[i].virt = ioremap(addr, size);
+		msp_maps[i].bankwidth = 1;
+		msp_maps[i].name = strncpy(kmalloc(7, GFP_KERNEL),
+					flash_name, 7);
+
+		if (msp_maps[i].virt == NULL)
+			return -ENXIO;
+
+		for (j = 0; j < pcnt; j++) {
+			part_name[5] = '0' + i;
+			part_name[7] = '0' + j;
+
+			env = prom_getenv(part_name);
+
+			if (sscanf(env, "%x:%x:%n", &offset, &size, &coff) < 2)
+				return -ENXIO;
+
+			msp_parts[i][j].size = size;
+			msp_parts[i][j].offset = offset;
+			msp_parts[i][j].name = env + coff;
+		}
+
+		/* now probe and add the device */
+		simple_map_init(&msp_maps[i]);
+		msp_flash[i] = do_map_probe("cfi_probe", &msp_maps[i]);
+		if (msp_flash[i]) {
+			msp_flash[i]->owner = THIS_MODULE;
+			add_mtd_partitions(msp_flash[i], msp_parts[i], pcnt);
+		} else {
+			printk(KERN_ERR "map probe failed for flash\n");
+			return -ENXIO;
+		}
+	}
+
+	return 0;
+}
+
+static void __exit cleanup_msp_flash(void)
+{
+	int i;
+
+	for (i = 0; i < sizeof(msp_flash) / sizeof(struct mtd_info **); i++) {
+		del_mtd_partitions(msp_flash[i]);
+		map_destroy(msp_flash[i]);
+		iounmap((void *)msp_maps[i].virt);
+
+		/* free the memory */
+		kfree(msp_maps[i].name);
+		kfree(msp_parts[i]);
+	}
+
+	kfree(msp_flash);
+	kfree(msp_parts);
+	kfree(msp_maps);
+}
+
+MODULE_AUTHOR("PMC-Sierra, Inc");
+MODULE_DESCRIPTION("MTD map driver for PMC-Sierra MSP boards");
+MODULE_LICENSE("GPL");
+
+module_init(init_msp_flash);
+module_exit(cleanup_msp_flash);

drivers/mtd/maps/pmcmsp-ramroot.c

+/*
+ * Mapping of the rootfs in a physical region of memory
+ *
+ * Copyright (C) 2005-2007 PMC-Sierra Inc.
+ * Author: Andrew Hughes, Andrew_Hughes@pmc-sierra.com
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/root_dev.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+
+#include <asm/io.h>
+
+#include <msp_prom.h>
+
+static struct mtd_info *rr_mtd;
+
+struct map_info rr_map = {
+	.name = "ramroot",
+	.bankwidth = 4,
+};
+
+static int __init init_rrmap(void)
+{
+	void *ramroot_start;
+	unsigned long ramroot_size;
+
+	/* Check for supported rootfs types */
+	if (get_ramroot(&ramroot_start, &ramroot_size)) {
+		rr_map.phys = CPHYSADDR(ramroot_start);
+		rr_map.size = ramroot_size;
+
+		printk(KERN_NOTICE
+			"PMC embedded root device: 0x%08lx @ 0x%08lx\n",
+			rr_map.size, (unsigned long)rr_map.phys);
+	} else {
+		printk(KERN_ERR
+			"init_rrmap: no supported embedded rootfs detected!\n");
+		return -ENXIO;
+	}
+
+	/* Map rootfs to I/O space for block device driver */
+	rr_map.virt = ioremap(rr_map.phys, rr_map.size);
+	if (!rr_map.virt) {
+		printk(KERN_ERR "Failed to ioremap\n");
+		return -EIO;
+	}
+
+	simple_map_init(&rr_map);
+
+	rr_mtd = do_map_probe("map_ram", &rr_map);
+	if (rr_mtd) {
+		rr_mtd->owner = THIS_MODULE;
+
+		add_mtd_device(rr_mtd);
+		ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, rr_mtd->index);
+
+		return 0;
+	}
+
+	iounmap(rr_map.virt);
+	return -ENXIO;
+}
+
+static void __exit cleanup_rrmap(void)
+{
+	del_mtd_device(rr_mtd);
+	map_destroy(rr_mtd);
+
+	iounmap(rr_map.virt);
+	rr_map.virt = NULL;
+}
+
+MODULE_AUTHOR("PMC-Sierra, Inc");
+MODULE_DESCRIPTION("MTD map driver for embedded PMC-Sierra MSP filesystem");
+MODULE_LICENSE("GPL");
+
+module_init(init_rrmap);
+module_exit(cleanup_rrmap);

drivers/mtd/mtd_blkdevs.c

@@ -20,6 +20,7 @@
 #include <linux/hdreg.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
+#include <linux/kthread.h>
 #include <asm/uaccess.h>
 
 static LIST_HEAD(blktrans_majors);
@@ -28,9 +29,7 @@ extern struct mutex mtd_table_mutex;
 extern struct mtd_info *mtd_table[];
 
 struct mtd_blkcore_priv {
-	struct completion thread_dead;
-	int exiting;
-	wait_queue_head_t thread_wq;
+	struct task_struct *thread;
 	struct request_queue *rq;
 	spinlock_t queue_lock;
 };
@@ -83,38 +82,19 @@ static int mtd_blktrans_thread(void *arg)
 	/* we might get involved when memory gets low, so use PF_MEMALLOC */
 	current->flags |= PF_MEMALLOC | PF_NOFREEZE;
 
-	daemonize("%sd", tr->name);
-
-	/* daemonize() doesn't do this for us since some kernel threads
-	   actually want to deal with signals. We can't just call
-	   exit_sighand() since that'll cause an oops when we finally
-	   do exit. */
-	spin_lock_irq(&current->sighand->siglock);
-	sigfillset(&current->blocked);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
 	spin_lock_irq(rq->queue_lock);
-
-	while (!tr->blkcore_priv->exiting) {
+	while (!kthread_should_stop()) {
 		struct request *req;
 		struct mtd_blktrans_dev *dev;
 		int res = 0;
-		DECLARE_WAITQUEUE(wait, current);
 
 		req = elv_next_request(rq);
 
 		if (!req) {
-			add_wait_queue(&tr->blkcore_priv->thread_wq, &wait);
 			set_current_state(TASK_INTERRUPTIBLE);
-
 			spin_unlock_irq(rq->queue_lock);
-
 			schedule();
-			remove_wait_queue(&tr->blkcore_priv->thread_wq, &wait);
-
 			spin_lock_irq(rq->queue_lock);
-
 			continue;
 		}
 
@@ -133,13 +113,13 @@ static int mtd_blktrans_thread(void *arg)
 	}
 	spin_unlock_irq(rq->queue_lock);
 
-	complete_and_exit(&tr->blkcore_priv->thread_dead, 0);
+	return 0;
 }
 
 static void mtd_blktrans_request(struct request_queue *rq)
 {
 	struct mtd_blktrans_ops *tr = rq->queuedata;
-	wake_up(&tr->blkcore_priv->thread_wq);
+	wake_up_process(tr->blkcore_priv->thread);
 }
 
 
@@ -388,8 +368,6 @@ int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
 		return ret;
 	}
 	spin_lock_init(&tr->blkcore_priv->queue_lock);
-	init_completion(&tr->blkcore_priv->thread_dead);
-	init_waitqueue_head(&tr->blkcore_priv->thread_wq);
 
 	tr->blkcore_priv->rq = blk_init_queue(mtd_blktrans_request, &tr->blkcore_priv->queue_lock);
 	if (!tr->blkcore_priv->rq) {
@@ -403,13 +381,14 @@ int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
 	blk_queue_hardsect_size(tr->blkcore_priv->rq, tr->blksize);
 	tr->blkshift = ffs(tr->blksize) - 1;
 
-	ret = kernel_thread(mtd_blktrans_thread, tr, CLONE_KERNEL);
-	if (ret < 0) {
+	tr->blkcore_priv->thread = kthread_run(mtd_blktrans_thread, tr,
+			"%sd", tr->name);
+	if (IS_ERR(tr->blkcore_priv->thread)) {
 		blk_cleanup_queue(tr->blkcore_priv->rq);
 		unregister_blkdev(tr->major, tr->name);
 		kfree(tr->blkcore_priv);
 		mutex_unlock(&mtd_table_mutex);
-		return ret;
+		return PTR_ERR(tr->blkcore_priv->thread);
 	}
 
 	INIT_LIST_HEAD(&tr->devs);
@@ -432,9 +411,7 @@ int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr)
 	mutex_lock(&mtd_table_mutex);
 
 	/* Clean up the kernel thread */
-	tr->blkcore_priv->exiting = 1;
-	wake_up(&tr->blkcore_priv->thread_wq);
-	wait_for_completion(&tr->blkcore_priv->thread_dead);
+	kthread_stop(tr->blkcore_priv->thread);
 
 	/* Remove it from the list of active majors */
 	list_del(&tr->list);

drivers/mtd/mtdchar.c

@@ -553,7 +553,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
 		ops.datbuf = NULL;
 		ops.mode = MTD_OOB_PLACE;
 
-		if (ops.ooboffs && ops.len > (mtd->oobsize - ops.ooboffs))
+		if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs))
 			return -EINVAL;
 
 		ops.oobbuf = kmalloc(buf.length, GFP_KERNEL);

drivers/mtd/nand/Kconfig

 # drivers/mtd/nand/Kconfig
 # $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $
 
-menu "NAND Flash Device Drivers"
-	depends on MTD!=n
-
-config MTD_NAND
+menuconfig MTD_NAND
 	tristate "NAND Device Support"
 	depends on MTD
 	select MTD_NAND_IDS
@@ -13,9 +10,10 @@ config MTD_NAND
 	  devices. For further information see
 	  <http://www.linux-mtd.infradead.org/doc/nand.html>.
 
+if MTD_NAND
+
 config MTD_NAND_VERIFY_WRITE
 	bool "Verify NAND page writes"
-	depends on MTD_NAND
 	help
 	  This adds an extra check when data is written to the flash. The
 	  NAND flash device internally checks only bits transitioning
@@ -25,53 +23,61 @@ config MTD_NAND_VERIFY_WRITE
 
 config MTD_NAND_ECC_SMC
 	bool "NAND ECC Smart Media byte order"
-	depends on MTD_NAND
 	default n
 	help
 	  Software ECC according to the Smart Media Specification.
 	  The original Linux implementation had byte 0 and 1 swapped.
 
+config MTD_NAND_MUSEUM_IDS
+	bool "Enable chip ids for obsolete ancient NAND devices"
+	depends on MTD_NAND
+	default n
+	help
+	  Enable this option only when your board has first generation
+	  NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
+	  of these chips were reused by later, larger chips.
+
 config MTD_NAND_AUTCPU12
 	tristate "SmartMediaCard on autronix autcpu12 board"
-	depends on MTD_NAND && ARCH_AUTCPU12
+	depends on ARCH_AUTCPU12
 	help
 	  This enables the driver for the autronix autcpu12 board to
 	  access the SmartMediaCard.
 
 config MTD_NAND_EDB7312
 	tristate "Support for Cirrus Logic EBD7312 evaluation board"
-	depends on MTD_NAND && ARCH_EDB7312
+	depends on ARCH_EDB7312
 	help
 	  This enables the driver for the Cirrus Logic EBD7312 evaluation
 	  board to access the onboard NAND Flash.
 
 config MTD_NAND_H1900
 	tristate "iPAQ H1900 flash"
-	depends on MTD_NAND && ARCH_PXA && MTD_PARTITIONS
+	depends on ARCH_PXA && MTD_PARTITIONS
 	help
 	  This enables the driver for the iPAQ h1900 flash.
 
 config MTD_NAND_SPIA
 	tristate "NAND Flash device on SPIA board"
-	depends on ARCH_P720T && MTD_NAND
+	depends on ARCH_P720T
 	help
 	  If you had to ask, you don't have one. Say 'N'.
 
 config MTD_NAND_AMS_DELTA
 	tristate "NAND Flash device on Amstrad E3"
-	depends on MACH_AMS_DELTA && MTD_NAND
+	depends on MACH_AMS_DELTA
 	help
 	  Support for NAND flash on Amstrad E3 (Delta).
 
 config MTD_NAND_TOTO
 	tristate "NAND Flash device on TOTO board"
-	depends on ARCH_OMAP && MTD_NAND && BROKEN
+	depends on ARCH_OMAP && BROKEN
 	help
 	  Support for NAND flash on Texas Instruments Toto platform.
 
 config MTD_NAND_TS7250
 	tristate "NAND Flash device on TS-7250 board"
-	depends on MACH_TS72XX && MTD_NAND
+	depends on MACH_TS72XX
 	help
 	  Support for NAND flash on Technologic Systems TS-7250 platform.
 
@@ -80,14 +86,14 @@ config MTD_NAND_IDS
 
 config MTD_NAND_AU1550
 	tristate "Au1550/1200 NAND support"
-	depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
+	depends on SOC_AU1200 || SOC_AU1550
 	help
 	  This enables the driver for the NAND flash controller on the
 	  AMD/Alchemy 1550 SOC.
 
 config MTD_NAND_RTC_FROM4
 	tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
-	depends on MTD_NAND && SH_SOLUTION_ENGINE
+	depends on SH_SOLUTION_ENGINE
 	select REED_SOLOMON
 	select REED_SOLOMON_DEC8
 	select BITREVERSE
@@ -97,13 +103,13 @@ config MTD_NAND_RTC_FROM4
 
 config MTD_NAND_PPCHAMELEONEVB
 	tristate "NAND Flash device on PPChameleonEVB board"
-	depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
+	depends on PPCHAMELEONEVB && BROKEN
 	help
 	  This enables the NAND flash driver on the PPChameleon EVB Board.
 
 config MTD_NAND_S3C2410
 	tristate "NAND Flash support for S3C2410/S3C2440 SoC"
-	depends on ARCH_S3C2410 && MTD_NAND
+	depends on ARCH_S3C2410
 	help
 	  This enables the NAND flash controller on the S3C2410 and S3C2440
 	  SoCs
@@ -128,7 +134,7 @@ config MTD_NAND_S3C2410_HWECC
 
 config MTD_NAND_NDFC
 	tristate "NDFC NanD Flash Controller"
-	depends on MTD_NAND && 44x
+	depends on 44x
 	select MTD_NAND_ECC_SMC
 	help
 	 NDFC Nand Flash Controllers are integrated in EP44x SoCs
@@ -145,7 +151,7 @@ config MTD_NAND_S3C2410_CLKSTOP
 
 config MTD_NAND_DISKONCHIP
 	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
-	depends on MTD_NAND && EXPERIMENTAL
+	depends on EXPERIMENTAL
 	select REED_SOLOMON
 	select REED_SOLOMON_DEC16
 	help
@@ -215,11 +221,11 @@ config MTD_NAND_DISKONCHIP_BBTWRITE
 
 config MTD_NAND_SHARPSL
 	tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
-	depends on MTD_NAND && ARCH_PXA
+	depends on ARCH_PXA
 
 config MTD_NAND_BASLER_EXCITE
 	tristate  "Support for NAND Flash on Basler eXcite"
-	depends on MTD_NAND && BASLER_EXCITE
+	depends on BASLER_EXCITE
 	help
           This enables the driver for the NAND flash device found on the
           Basler eXcite Smart Camera. If built as a module, the driver
@@ -227,14 +233,14 @@ config MTD_NAND_BASLER_EXCITE
 
 config MTD_NAND_CAFE
        tristate "NAND support for OLPC CAFÉ chip"
-       depends on MTD_NAND && PCI
+       depends on PCI
        help
 	 Use NAND flash attached to the CAFÉ chip designed for the $100
 	 laptop.
 
 config MTD_NAND_CS553X
 	tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
-	depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH)
+	depends on X86_32 && (X86_PC || X86_GENERICARCH)
 	help
 	  The CS553x companion chips for the AMD Geode processor
 	  include NAND flash controllers with built-in hardware ECC
@@ -247,16 +253,21 @@ config MTD_NAND_CS553X
 
 config MTD_NAND_AT91
 	bool "Support for NAND Flash / SmartMedia on AT91"
-	depends on MTD_NAND && ARCH_AT91
+	depends on ARCH_AT91
 	help
 	  Enables support for NAND Flash / Smart Media Card interface
 	  on Atmel AT91 processors.
 
+config MTD_NAND_CM_X270
+	tristate "Support for NAND Flash on CM-X270 modules"
+	depends on MTD_NAND && MACH_ARMCORE
+
+
 config MTD_NAND_NANDSIM
 	tristate "Support for NAND Flash Simulator"
-	depends on MTD_NAND && MTD_PARTITIONS
+	depends on MTD_PARTITIONS
 	help
 	  The simulator may simulate various NAND flash chips for the
 	  MTD nand layer.
 
-endmenu
+endif # MTD_NAND

drivers/mtd/nand/Makefile

@@ -24,6 +24,7 @@ obj-$(CONFIG_MTD_NAND_NANDSIM)		+= nandsim.o
 obj-$(CONFIG_MTD_NAND_CS553X)		+= cs553x_nand.o
 obj-$(CONFIG_MTD_NAND_NDFC)		+= ndfc.o
 obj-$(CONFIG_MTD_NAND_AT91)		+= at91_nand.o
+obj-$(CONFIG_MTD_NAND_CM_X270)		+= cmx270_nand.o
 obj-$(CONFIG_MTD_NAND_BASLER_EXCITE)	+= excite_nandflash.o
 
 nand-objs := nand_base.o nand_bbt.o

drivers/mtd/nand/cafe.c

@@ -530,7 +530,6 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
 {
 	struct mtd_info *mtd;
 	struct cafe_priv *cafe;
-	uint32_t timing1, timing2, timing3;
 	uint32_t ctrl;
 	int err = 0;
 
@@ -587,21 +586,19 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
 	}
 
 	if (numtimings == 3) {
-		timing1 = timing[0];
-		timing2 = timing[1];
-		timing3 = timing[2];
 		cafe_dev_dbg(&cafe->pdev->dev, "Using provided timings (%08x %08x %08x)\n",
-			     timing1, timing2, timing3);
+			     timing[0], timing[1], timing[2]);
 	} else {
-		timing1 = cafe_readl(cafe, NAND_TIMING1);
-		timing2 = cafe_readl(cafe, NAND_TIMING2);
-		timing3 = cafe_readl(cafe, NAND_TIMING3);
+		timing[0] = cafe_readl(cafe, NAND_TIMING1);
+		timing[1] = cafe_readl(cafe, NAND_TIMING2);
+		timing[2] = cafe_readl(cafe, NAND_TIMING3);
 
-		if (timing1 | timing2 | timing3) {
-			cafe_dev_dbg(&cafe->pdev->dev, "Timing registers already set (%08x %08x %08x)\n", timing1, timing2, timing3);
+		if (timing[0] | timing[1] | timing[2]) {
+			cafe_dev_dbg(&cafe->pdev->dev, "Timing registers already set (%08x %08x %08x)\n",
+				     timing[0], timing[1], timing[2]);
 		} else {
 			dev_warn(&cafe->pdev->dev, "Timing registers unset; using most conservative defaults\n");
-			timing1 = timing2 = timing3 = 0xffffffff;
+			timing[0] = timing[1] = timing[2] = 0xffffffff;
 		}
 	}
 
@@ -609,9 +606,9 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
 	cafe_writel(cafe, 1, NAND_RESET);
 	cafe_writel(cafe, 0, NAND_RESET);
 
-	cafe_writel(cafe, timing1, NAND_TIMING1);
-	cafe_writel(cafe, timing2, NAND_TIMING2);
-	cafe_writel(cafe, timing3, NAND_TIMING3);
+	cafe_writel(cafe, timing[0], NAND_TIMING1);
+	cafe_writel(cafe, timing[1], NAND_TIMING2);
+	cafe_writel(cafe, timing[2], NAND_TIMING3);
 
 	cafe_writel(cafe, 0xffffffff, NAND_IRQ_MASK);
 	err = request_irq(pdev->irq, &cafe_nand_interrupt, IRQF_SHARED,

drivers/mtd/nand/cmx270_nand.c

+/*
+ *  linux/drivers/mtd/nand/cmx270-nand.c
+ *
+ *  Copyright (C) 2006 Compulab, Ltd.
+ *  Mike Rapoport <mike@compulab.co.il>
+ *
+ *  Derived from drivers/mtd/nand/h1910.c
+ *       Copyright (C) 2002 Marius Gröger (mag@sysgo.de)
+ *       Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
+ *
+ *
+ * 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.
+ *
+ *  Overview:
+ *   This is a device driver for the NAND flash device found on the
+ *   CM-X270 board.
+ */
+
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+
+#define GPIO_NAND_CS	(11)
+#define GPIO_NAND_RB	(89)
+
+/* This macro needed to ensure in-order operation of GPIO and local
+ * bus. Without both asm command and dummy uncached read there're
+ * states when NAND access is broken. I've looked for such macro(s) in
+ * include/asm-arm but found nothing approptiate.
+ * dmac_clean_range is close, but is makes cache invalidation
+ * unnecessary here and it cannot be used in module
+ */
+#define DRAIN_WB() \
+	do { \
+		unsigned char dummy; \
+		asm volatile ("mcr p15, 0, r0, c7, c10, 4":::"r0"); \
+		dummy=*((unsigned char*)UNCACHED_ADDR); \
+	} while(0)
+
+/* MTD structure for CM-X270 board */
+static struct mtd_info *cmx270_nand_mtd;
+
+/* remaped IO address of the device */
+static void __iomem *cmx270_nand_io;
+
+/*
+ * Define static partitions for flash device
+ */
+static struct mtd_partition partition_info[] = {
+	[0] = {
+		.name	= "cmx270-0",
+		.offset	= 0,
+		.size	= MTDPART_SIZ_FULL
+	}
+};
+#define NUM_PARTITIONS (ARRAY_SIZE(partition_info))
+
+const char *part_probes[] = { "cmdlinepart", NULL };
+
+static u_char cmx270_read_byte(struct mtd_info *mtd)
+{
+	struct nand_chip *this = mtd->priv;
+
+	return (readl(this->IO_ADDR_R) >> 16);
+}
+
+static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
+{
+	int i;
+	struct nand_chip *this = mtd->priv;
+
+	for (i=0; i<len; i++)
+		writel((*buf++ << 16), this->IO_ADDR_W);
+}
+
+static void cmx270_read_buf(struct mtd_info *mtd, u_char *buf, int len)
+{
+	int i;
+	struct nand_chip *this = mtd->priv;
+
+	for (i=0; i<len; i++)
+		*buf++ = readl(this->IO_ADDR_R) >> 16;
+}
+
+static int cmx270_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
+{
+	int i;
+	struct nand_chip *this = mtd->priv;
+
+	for (i=0; i<len; i++)
+		if (buf[i] != (u_char)(readl(this->IO_ADDR_R) >> 16))
+			return -EFAULT;
+
+	return 0;
+}
+
+static inline void nand_cs_on(void)
+{
+	GPCR(GPIO_NAND_CS) = GPIO_bit(GPIO_NAND_CS);
+}
+
+static void nand_cs_off(void)
+{
+	DRAIN_WB();
+
+	GPSR(GPIO_NAND_CS) = GPIO_bit(GPIO_NAND_CS);
+}
+
+/*
+ *	hardware specific access to control-lines
+ */
+static void cmx270_hwcontrol(struct mtd_info *mtd, int dat,
+			     unsigned int ctrl)
+{
+	struct nand_chip* this = mtd->priv;
+	unsigned int nandaddr = (unsigned int)this->IO_ADDR_W;
+
+	DRAIN_WB();
+
+	if (ctrl & NAND_CTRL_CHANGE) {
+		if ( ctrl & NAND_ALE )
+			nandaddr |=  (1 << 3);
+		else
+			nandaddr &= ~(1 << 3);
+		if ( ctrl & NAND_CLE )
+			nandaddr |=  (1 << 2);
+		else
+			nandaddr &= ~(1 << 2);
+		if ( ctrl & NAND_NCE )
+			nand_cs_on();
+		else
+			nand_cs_off();
+	}
+
+	DRAIN_WB();
+	this->IO_ADDR_W = (void __iomem*)nandaddr;
+	if (dat != NAND_CMD_NONE)
+		writel((dat << 16), this->IO_ADDR_W);
+
+	DRAIN_WB();
+}
+
+/*
+ *	read device ready pin
+ */
+static int cmx270_device_ready(struct mtd_info *mtd)
+{
+	DRAIN_WB();
+
+	return (GPLR(GPIO_NAND_RB) & GPIO_bit(GPIO_NAND_RB));
+}
+
+/*
+ * Main initialization routine
+ */
+static int cmx270_init(void)
+{
+	struct nand_chip *this;
+	const char *part_type;
+	struct mtd_partition *mtd_parts;
+	int mtd_parts_nb = 0;
+	int ret;
+
+	/* Allocate memory for MTD device structure and private data */
+	cmx270_nand_mtd = kzalloc(sizeof(struct mtd_info) +
+				  sizeof(struct nand_chip),
+				  GFP_KERNEL);
+	if (!cmx270_nand_mtd) {
+		printk("Unable to allocate CM-X270 NAND MTD device structure.\n");
+		return -ENOMEM;
+	}
+
+	cmx270_nand_io = ioremap(PXA_CS1_PHYS, 12);
+	if (!cmx270_nand_io) {
+		printk("Unable to ioremap NAND device\n");
+		ret = -EINVAL;
+		goto err1;
+	}
+
+	/* Get pointer to private data */
+	this = (struct nand_chip *)(&cmx270_nand_mtd[1]);
+
+	/* Link the private data with the MTD structure */
+	cmx270_nand_mtd->owner = THIS_MODULE;
+	cmx270_nand_mtd->priv = this;
+
+	/* insert callbacks */
+	this->IO_ADDR_R = cmx270_nand_io;
+	this->IO_ADDR_W = cmx270_nand_io;
+	this->cmd_ctrl = cmx270_hwcontrol;
+	this->dev_ready = cmx270_device_ready;
+
+	/* 15 us command delay time */
+	this->chip_delay = 20;
+	this->ecc.mode = NAND_ECC_SOFT;
+
+	/* read/write functions */
+	this->read_byte = cmx270_read_byte;
+	this->read_buf = cmx270_read_buf;
+	this->write_buf = cmx270_write_buf;
+	this->verify_buf = cmx270_verify_buf;
+
+	/* Scan to find existence of the device */
+	if (nand_scan (cmx270_nand_mtd, 1)) {
+		printk(KERN_NOTICE "No NAND device\n");
+		ret = -ENXIO;
+		goto err2;
+	}
+
+#ifdef CONFIG_MTD_CMDLINE_PARTS
+	mtd_parts_nb = parse_mtd_partitions(cmx270_nand_mtd, part_probes,
+					    &mtd_parts, 0);
+	if (mtd_parts_nb > 0)
+		part_type = "command line";
+	else
+		mtd_parts_nb = 0;
+#endif
+	if (!mtd_parts_nb) {
+		mtd_parts = partition_info;
+		mtd_parts_nb = NUM_PARTITIONS;
+		part_type = "static";
+	}
+
+	/* Register the partitions */
+	printk(KERN_NOTICE "Using %s partition definition\n", part_type);
+	ret = add_mtd_partitions(cmx270_nand_mtd, mtd_parts, mtd_parts_nb);
+	if (ret)
+		goto err2;
+
+	/* Return happy */
+	return 0;
+
+err2:
+	iounmap(cmx270_nand_io);
+err1:
+	kfree(cmx270_nand_mtd);
+
+	return ret;
+
+}
+module_init(cmx270_init);
+
+/*
+ * Clean up routine
+ */
+static void cmx270_cleanup(void)
+{
+	/* Release resources, unregister device */
+	nand_release(cmx270_nand_mtd);
+
+	iounmap(cmx270_nand_io);
+
+	/* Free the MTD device structure */
+	kfree (cmx270_nand_mtd);
+}
+module_exit(cmx270_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
+MODULE_DESCRIPTION("NAND flash driver for Compulab CM-X270 Module");

drivers/mtd/nand/nand_base.c

@@ -312,7 +312,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
 		/* Select the NAND device */
 		chip->select_chip(mtd, chipnr);
 	} else
-		page = (int)ofs;
+		page = (int)(ofs >> chip->page_shift);
 
 	if (chip->options & NAND_BUSWIDTH_16) {
 		chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos & 0xFE,
@@ -350,7 +350,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 	int block, ret;
 
 	/* Get block number */
-	block = ((int)ofs) >> chip->bbt_erase_shift;
+	block = (int)(ofs >> chip->bbt_erase_shift);
 	if (chip->bbt)
 		chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
 
@@ -771,7 +771,7 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
 	uint8_t *ecc_code = chip->buffers->ecccode;
 	int *eccpos = chip->ecc.layout->eccpos;
 
-	nand_read_page_raw(mtd, chip, buf);
+	chip->ecc.read_page_raw(mtd, chip, buf);
 
 	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
 		chip->ecc.calculate(mtd, p, &ecc_calc[i]);
@@ -1426,7 +1426,7 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
 	for (i = 0; i < chip->ecc.total; i++)
 		chip->oob_poi[eccpos[i]] = ecc_calc[i];
 
-	nand_write_page_raw(mtd, chip, buf);
+	chip->ecc.write_page_raw(mtd, chip, buf);
 }
 
 /**

drivers/mtd/nand/nand_ids.c

@@ -24,6 +24,8 @@
 *	512	512 Byte page size
 */
 struct nand_flash_dev nand_flash_ids[] = {
+
+#ifdef CONFIG_MTD_NAND_MUSEUM_IDS
 	{"NAND 1MiB 5V 8-bit",		0x6e, 256, 1, 0x1000, 0},
 	{"NAND 2MiB 5V 8-bit",		0x64, 256, 2, 0x1000, 0},
 	{"NAND 4MiB 5V 8-bit",		0x6b, 512, 4, 0x2000, 0},
@@ -39,6 +41,7 @@ struct nand_flash_dev nand_flash_ids[] = {
 	{"NAND 8MiB 3,3V 8-bit",	0xe6, 512, 8, 0x2000, 0},
 	{"NAND 8MiB 1,8V 16-bit",	0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16},
 	{"NAND 8MiB 3,3V 16-bit",	0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16},
+#endif
 
 	{"NAND 16MiB 1,8V 8-bit",	0x33, 512, 16, 0x4000, 0},
 	{"NAND 16MiB 3,3V 8-bit",	0x73, 512, 16, 0x4000, 0},
@@ -137,6 +140,7 @@ struct nand_manufacturers nand_manuf_ids[] = {
 	{NAND_MFR_RENESAS, "Renesas"},
 	{NAND_MFR_STMICRO, "ST Micro"},
 	{NAND_MFR_HYNIX, "Hynix"},
+	{NAND_MFR_MICRON, "Micron"},
 	{0x0, "Unknown"}
 };
 

drivers/mtd/onenand/Kconfig

@@ -2,20 +2,18 @@
 # linux/drivers/mtd/onenand/Kconfig
 #
 
-menu "OneNAND Flash Device Drivers"
-	depends on MTD != n
-
-config MTD_ONENAND
+menuconfig MTD_ONENAND
 	tristate "OneNAND Device Support"
 	depends on MTD
 	help
 	  This enables support for accessing all type of OneNAND flash
 	  devices. For further information see
-	  <http://www.samsung.com/Products/Semiconductor/Flash/OneNAND_TM/index.htm>.
+	  <http://www.samsung.com/Products/Semiconductor/OneNAND/index.htm>
+
+if MTD_ONENAND
 
 config MTD_ONENAND_VERIFY_WRITE
 	bool "Verify OneNAND page writes"
-	depends on MTD_ONENAND
 	help
 	  This adds an extra check when data is written to the flash. The
 	  OneNAND flash device internally checks only bits transitioning
@@ -25,13 +23,12 @@ config MTD_ONENAND_VERIFY_WRITE
 
 config MTD_ONENAND_GENERIC
 	tristate "OneNAND Flash device via platform device driver"
-	depends on MTD_ONENAND && ARM
+	depends on ARM
 	help
 	  Support for OneNAND flash via platform device driver.
 
 config MTD_ONENAND_OTP
 	bool "OneNAND OTP Support"
-	depends on MTD_ONENAND
 	help
 	  One Block of the NAND Flash Array memory is reserved as
 	  a One-Time Programmable Block memory area.
@@ -43,4 +40,4 @@ config MTD_ONENAND_OTP
 
 	  OTP block is fully-guaranteed to be a valid block.
 
-endmenu
+endif # MTD_ONENAND

drivers/mtd/onenand/onenand_base.c

@@ -836,9 +836,11 @@ static int onenand_transfer_auto_oob(struct mtd_info *mtd, uint8_t *buf, int col
 	int readcol = column;
 	int readend = column + thislen;
 	int lastgap = 0;
+	unsigned int i;
 	uint8_t *oob_buf = this->oob_buf;
 
-	for (free = this->ecclayout->oobfree; free->length; ++free) {
+	free = this->ecclayout->oobfree;
+	for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
 		if (readcol >= lastgap)
 			readcol += free->offset - lastgap;
 		if (readend >= lastgap)
@@ -846,7 +848,8 @@ static int onenand_transfer_auto_oob(struct mtd_info *mtd, uint8_t *buf, int col
 		lastgap = free->offset + free->length;
 	}
 	this->read_bufferram(mtd, ONENAND_SPARERAM, oob_buf, 0, mtd->oobsize);
-	for (free = this->ecclayout->oobfree; free->length; ++free) {
+	free = this->ecclayout->oobfree;
+	for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
 		int free_end = free->offset + free->length;
 		if (free->offset < readend && free_end > readcol) {
 			int st = max_t(int,free->offset,readcol);
@@ -854,7 +857,7 @@ static int onenand_transfer_auto_oob(struct mtd_info *mtd, uint8_t *buf, int col
 			int n = ed - st;
 			memcpy(buf, oob_buf + st, n);
 			buf += n;
-		} else
+		} else if (column == 0)
 			break;
 	}
 	return 0;
@@ -1280,15 +1283,18 @@ static int onenand_fill_auto_oob(struct mtd_info *mtd, u_char *oob_buf,
 	int writecol = column;
 	int writeend = column + thislen;
 	int lastgap = 0;
+	unsigned int i;
 
-	for (free = this->ecclayout->oobfree; free->length; ++free) {
+	free = this->ecclayout->oobfree;
+	for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
 		if (writecol >= lastgap)
 			writecol += free->offset - lastgap;
 		if (writeend >= lastgap)
 			writeend += free->offset - lastgap;
 		lastgap = free->offset + free->length;
 	}
-	for (free = this->ecclayout->oobfree; free->length; ++free) {
+	free = this->ecclayout->oobfree;
+	for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
 		int free_end = free->offset + free->length;
 		if (free->offset < writeend && free_end > writecol) {
 			int st = max_t(int,free->offset,writecol);
@@ -1296,7 +1302,7 @@ static int onenand_fill_auto_oob(struct mtd_info *mtd, u_char *oob_buf,
 			int n = ed - st;
 			memcpy(oob_buf + st, buf, n);
 			buf += n;
-		} else
+		} else if (column == 0)
 			break;
 	}
 	return 0;
@@ -2386,7 +2392,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
 	 * the out of band area
 	 */
 	this->ecclayout->oobavail = 0;
-	for (i = 0; this->ecclayout->oobfree[i].length; i++)
+	for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES &&
+	    this->ecclayout->oobfree[i].length; i++)
 		this->ecclayout->oobavail +=
 			this->ecclayout->oobfree[i].length;
 	mtd->oobavail = this->ecclayout->oobavail;

fs/jffs2/LICENCE

 The files in this directory and elsewhere which refer to this LICENCE
 file are part of JFFS2, the Journalling Flash File System v2.
 
-	Copyright (C) 2001, 2002 Red Hat, Inc.
+	Copyright © 2001-2007 Red Hat, Inc. and others
 
 JFFS2 is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
@@ -28,8 +28,3 @@ of the GNU General Public License.
 This exception does not invalidate any other reasons why a work based on
 this file might be covered by the GNU General Public License.
 
-For information on obtaining alternative licences for JFFS2, see 
-http://sources.redhat.com/jffs2/jffs2-licence.html
-
-
-	$Id: LICENCE,v 1.1 2002/05/20 14:56:37 dwmw2 Exp $

fs/jffs2/Makefile

 #
 # Makefile for the Linux Journalling Flash File System v2 (JFFS2)
 #
-# $Id: Makefile.common,v 1.11 2005/09/07 08:34:53 havasi Exp $
 #
 
 obj-$(CONFIG_JFFS2_FS) += jffs2.o

fs/jffs2/README.Locking

-	$Id: README.Locking,v 1.12 2005/04/13 13:22:35 dwmw2 Exp $
 
 	JFFS2 LOCKING DOCUMENTATION
 	---------------------------

fs/jffs2/TODO

-$Id: TODO,v 1.18 2005/09/22 11:24:56 dedekind Exp $
 
  - support asynchronous operation -- add a per-fs 'reserved_space' count,
    let each outstanding write reserve the _maximum_ amount of physical
@@ -30,8 +29,6 @@ $Id: TODO,v 1.18 2005/09/22 11:24:56 dedekind Exp $
      the full dirent, we only need to go to the flash in lookup() when we think we've
      got a match, and in readdir(). 
    - Doubly-linked next_in_ino list to allow us to free obsoleted raw_node_refs immediately?
-   - Remove totlen from jffs2_raw_node_ref? Need to have totlen passed into
-	jffs2_mark_node_obsolete(). Can all callers work it out?
    - Remove size from jffs2_raw_node_frag. 
 
 dedekind:

fs/jffs2/acl.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2006  NEC Corporation
+ * Copyright © 2006  NEC Corporation
  *
  * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/fs.h>

fs/jffs2/acl.h

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2006  NEC Corporation
+ * Copyright © 2006  NEC Corporation
  *
  * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
+
 struct jffs2_acl_entry {
 	jint16_t	e_tag;
 	jint16_t	e_perm;

fs/jffs2/background.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: background.c,v 1.54 2005/05/20 21:37:12 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>

fs/jffs2/build.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: build.c,v 1.85 2005/11/07 11:14:38 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>

fs/jffs2/compr.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  * Created by Arjan van de Ven <arjanv@redhat.com>
  *
- * Copyright (C) 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
+ * Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
  *                    University of Szeged, Hungary
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: compr.c,v 1.46 2005/11/07 11:14:38 gleixner Exp $
- *
  */
 
 #include "compr.h"
@@ -268,144 +266,6 @@ int jffs2_unregister_compressor(struct jffs2_compressor *comp)
         return 0;
 }
 
-#ifdef CONFIG_JFFS2_PROC
-
-#define JFFS2_STAT_BUF_SIZE 16000
-
-char *jffs2_list_compressors(void)
-{
-        struct jffs2_compressor *this;
-        char *buf, *act_buf;
-
-        act_buf = buf = kmalloc(JFFS2_STAT_BUF_SIZE,GFP_KERNEL);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                act_buf += sprintf(act_buf, "%10s priority:%d ", this->name, this->priority);
-                if ((this->disabled)||(!this->compress))
-                        act_buf += sprintf(act_buf,"disabled");
-                else
-                        act_buf += sprintf(act_buf,"enabled");
-                act_buf += sprintf(act_buf,"\n");
-        }
-        return buf;
-}
-
-char *jffs2_stats(void)
-{
-        struct jffs2_compressor *this;
-        char *buf, *act_buf;
-
-        act_buf = buf = kmalloc(JFFS2_STAT_BUF_SIZE,GFP_KERNEL);
-
-        act_buf += sprintf(act_buf,"JFFS2 compressor statistics:\n");
-        act_buf += sprintf(act_buf,"%10s   ","none");
-        act_buf += sprintf(act_buf,"compr: %d blocks (%d)  decompr: %d blocks\n", none_stat_compr_blocks,
-                           none_stat_compr_size, none_stat_decompr_blocks);
-        spin_lock(&jffs2_compressor_list_lock);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                act_buf += sprintf(act_buf,"%10s ",this->name);
-                if ((this->disabled)||(!this->compress))
-                        act_buf += sprintf(act_buf,"- ");
-                else
-                        act_buf += sprintf(act_buf,"+ ");
-                act_buf += sprintf(act_buf,"compr: %d blocks (%d/%d)  decompr: %d blocks ", this->stat_compr_blocks,
-                                   this->stat_compr_new_size, this->stat_compr_orig_size,
-                                   this->stat_decompr_blocks);
-                act_buf += sprintf(act_buf,"\n");
-        }
-        spin_unlock(&jffs2_compressor_list_lock);
-
-        return buf;
-}
-
-char *jffs2_get_compression_mode_name(void)
-{
-        switch (jffs2_compression_mode) {
-        case JFFS2_COMPR_MODE_NONE:
-                return "none";
-        case JFFS2_COMPR_MODE_PRIORITY:
-                return "priority";
-        case JFFS2_COMPR_MODE_SIZE:
-                return "size";
-        }
-        return "unkown";
-}
-
-int jffs2_set_compression_mode_name(const char *name)
-{
-        if (!strcmp("none",name)) {
-                jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
-                return 0;
-        }
-        if (!strcmp("priority",name)) {
-                jffs2_compression_mode = JFFS2_COMPR_MODE_PRIORITY;
-                return 0;
-        }
-        if (!strcmp("size",name)) {
-                jffs2_compression_mode = JFFS2_COMPR_MODE_SIZE;
-                return 0;
-        }
-        return 1;
-}
-
-static int jffs2_compressor_Xable(const char *name, int disabled)
-{
-        struct jffs2_compressor *this;
-        spin_lock(&jffs2_compressor_list_lock);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                if (!strcmp(this->name, name)) {
-                        this->disabled = disabled;
-                        spin_unlock(&jffs2_compressor_list_lock);
-                        return 0;
-                }
-        }
-        spin_unlock(&jffs2_compressor_list_lock);
-        printk(KERN_WARNING "JFFS2: compressor %s not found.\n",name);
-        return 1;
-}
-
-int jffs2_enable_compressor_name(const char *name)
-{
-        return jffs2_compressor_Xable(name, 0);
-}
-
-int jffs2_disable_compressor_name(const char *name)
-{
-        return jffs2_compressor_Xable(name, 1);
-}
-
-int jffs2_set_compressor_priority(const char *name, int priority)
-{
-        struct jffs2_compressor *this,*comp;
-        spin_lock(&jffs2_compressor_list_lock);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                if (!strcmp(this->name, name)) {
-                        this->priority = priority;
-                        comp = this;
-                        goto reinsert;
-                }
-        }
-        spin_unlock(&jffs2_compressor_list_lock);
-        printk(KERN_WARNING "JFFS2: compressor %s not found.\n",name);
-        return 1;
-reinsert:
-        /* list is sorted in the order of priority, so if
-           we change it we have to reinsert it into the
-           good place */
-        list_del(&comp->list);
-        list_for_each_entry(this, &jffs2_compressor_list, list) {
-                if (this->priority < comp->priority) {
-                        list_add(&comp->list, this->list.prev);
-                        spin_unlock(&jffs2_compressor_list_lock);
-                        return 0;
-                }
-        }
-        list_add_tail(&comp->list, &jffs2_compressor_list);
-        spin_unlock(&jffs2_compressor_list_lock);
-        return 0;
-}
-
-#endif
-
 void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig)
 {
         if (orig != comprbuf)

fs/jffs2/compr.h

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
+ * Copyright © 2004   Ferenc Havasi <havasi@inf.u-szeged.hu>,
  *                    University of Szeged, Hungary
  *
- * For licensing information, see the file 'LICENCE' in the
- * jffs2 directory.
- *
- * $Id: compr.h,v 1.9 2005/11/07 11:14:38 gleixner Exp $
+ * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
 
@@ -76,16 +73,6 @@ int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
 
 void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig);
 
-#ifdef CONFIG_JFFS2_PROC
-int jffs2_enable_compressor_name(const char *name);
-int jffs2_disable_compressor_name(const char *name);
-int jffs2_set_compression_mode_name(const char *mode_name);
-char *jffs2_get_compression_mode_name(void);
-int jffs2_set_compressor_priority(const char *mode_name, int priority);
-char *jffs2_list_compressors(void);
-char *jffs2_stats(void);
-#endif
-
 /* Compressor modules */
 /* These functions will be called by jffs2_compressors_init/exit */
 

fs/jffs2/compr_rtime.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by Arjan van de Ven <arjanv@redhat.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: compr_rtime.c,v 1.14 2004/06/23 16:34:40 havasi Exp $
  *
  *
  * Very simple lz77-ish encoder.

fs/jffs2/compr_rubin.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001, 2002 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by Arjan van de Ven <arjanv@redhat.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: compr_rubin.c,v 1.20 2004/06/23 16:34:40 havasi Exp $
- *
  */
 
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/jffs2.h>
-#include "compr_rubin.h"
-#include "histo_mips.h"
+#include <linux/errno.h>
 #include "compr.h"
 
+
+#define RUBIN_REG_SIZE   16
+#define UPPER_BIT_RUBIN    (((long) 1)<<(RUBIN_REG_SIZE-1))
+#define LOWER_BITS_RUBIN   ((((long) 1)<<(RUBIN_REG_SIZE-1))-1)
+
+
+#define BIT_DIVIDER_MIPS 1043
+static int bits_mips[8] = { 277,249,290,267,229,341,212,241}; /* mips32 */
+
+#include <linux/errno.h>
+
+struct pushpull {
+	unsigned char *buf;
+	unsigned int buflen;
+	unsigned int ofs;
+	unsigned int reserve;
+};
+
+struct rubin_state {
+	unsigned long p;
+	unsigned long q;
+	unsigned long rec_q;
+	long bit_number;
+	struct pushpull pp;
+	int bit_divider;
+	int bits[8];
+};
+
+static inline void init_pushpull(struct pushpull *pp, char *buf, unsigned buflen, unsigned ofs, unsigned reserve)
+{
+	pp->buf = buf;
+	pp->buflen = buflen;
+	pp->ofs = ofs;
+	pp->reserve = reserve;
+}
+
+static inline int pushbit(struct pushpull *pp, int bit, int use_reserved)
+{
+	if (pp->ofs >= pp->buflen - (use_reserved?0:pp->reserve)) {
+		return -ENOSPC;
+	}
+
+	if (bit) {
+		pp->buf[pp->ofs >> 3] |= (1<<(7-(pp->ofs &7)));
+	}
+	else {
+		pp->buf[pp->ofs >> 3] &= ~(1<<(7-(pp->ofs &7)));
+	}
+	pp->ofs++;
+
+	return 0;
+}
+
+static inline int pushedbits(struct pushpull *pp)
+{
+	return pp->ofs;
+}
+
+static inline int pullbit(struct pushpull *pp)
+{
+	int bit;
+
+	bit = (pp->buf[pp->ofs >> 3] >> (7-(pp->ofs & 7))) & 1;
+
+	pp->ofs++;
+	return bit;
+}
+
+static inline int pulledbits(struct pushpull *pp)
+{
+	return pp->ofs;
+}
+
+
 static void init_rubin(struct rubin_state *rs, int div, int *bits)
 {
 	int c;

fs/jffs2/compr_rubin.h

-/* Rubin encoder/decoder header       */
-/* work started at   : aug   3, 1994  */
-/* last modification : aug  15, 1994  */
-/* $Id: compr_rubin.h,v 1.7 2005/11/07 11:14:38 gleixner Exp $ */
-
-#include "pushpull.h"
-
-#define RUBIN_REG_SIZE   16
-#define UPPER_BIT_RUBIN    (((long) 1)<<(RUBIN_REG_SIZE-1))
-#define LOWER_BITS_RUBIN   ((((long) 1)<<(RUBIN_REG_SIZE-1))-1)
-
-
-struct rubin_state {
-	unsigned long p;
-	unsigned long q;
-	unsigned long rec_q;
-	long bit_number;
-	struct pushpull pp;
-	int bit_divider;
-	int bits[8];
-};

fs/jffs2/compr_zlib.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: compr_zlib.c,v 1.32 2005/11/07 11:14:38 gleixner Exp $
- *
  */
 
 #if !defined(__KERNEL__) && !defined(__ECOS)

fs/jffs2/debug.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: debug.c,v 1.12 2005/11/07 11:14:39 gleixner Exp $
- *
  */
+
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/pagemap.h>

fs/jffs2/debug.h

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: debug.h,v 1.21 2005/11/07 11:14:39 gleixner Exp $
- *
  */
+
 #ifndef _JFFS2_DEBUG_H_
 #define _JFFS2_DEBUG_H_
 

fs/jffs2/dir.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: dir.c,v 1.90 2005/11/07 11:14:39 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>

fs/jffs2/erase.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: erase.c,v 1.85 2005/09/20 14:53:15 dedekind Exp $
- *
  */
 
 #include <linux/kernel.h>
@@ -333,7 +331,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
 
 		*bad_offset = ofs;
 
-		ret = jffs2_flash_read(c, ofs, readlen, &retlen, ebuf);
+		ret = c->mtd->read(c->mtd, ofs, readlen, &retlen, ebuf);
 		if (ret) {
 			printk(KERN_WARNING "Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", ofs, ret);
 			goto fail;

fs/jffs2/file.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: file.c,v 1.104 2005/10/18 23:29:35 tpoynor Exp $
- *
  */
 
 #include <linux/kernel.h>

fs/jffs2/fs.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: fs.c,v 1.66 2005/09/27 13:17:29 dedekind Exp $
- *
  */
 
 #include <linux/capability.h>

fs/jffs2/gc.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: gc.c,v 1.155 2005/11/07 11:14:39 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>
@@ -144,7 +142,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
 			       c->unchecked_size);
 			jffs2_dbg_dump_block_lists_nolock(c);
 			spin_unlock(&c->erase_completion_lock);
-			BUG();
+			up(&c->alloc_sem);
+			return -ENOSPC;
 		}
 
 		spin_unlock(&c->erase_completion_lock);

fs/jffs2/ioctl.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: ioctl.c,v 1.10 2005/11/07 11:14:40 gleixner Exp $
- *
  */
 
 #include <linux/fs.h>

fs/jffs2/jffs2_fs_i.h

-/* $Id: jffs2_fs_i.h,v 1.19 2005/11/07 11:14:52 gleixner Exp $ */
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright © 2001-2007 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@infradead.org>
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ */
 
 #ifndef _JFFS2_FS_I
 #define _JFFS2_FS_I

fs/jffs2/jffs2_fs_sb.h

-/* $Id: jffs2_fs_sb.h,v 1.54 2005/09/21 13:37:34 dedekind Exp $ */
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright © 2001-2007 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@infradead.org>
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ */
 
 #ifndef _JFFS2_FS_SB
 #define _JFFS2_FS_SB

fs/jffs2/malloc.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: malloc.c,v 1.31 2005/11/07 11:14:40 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>

fs/jffs2/nodelist.h

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: nodelist.h,v 1.140 2005/09/07 08:34:54 havasi Exp $
- *
  */
 
 #ifndef __JFFS2_NODELIST_H__
@@ -40,6 +38,9 @@
 #define cpu_to_je32(x) ((jint32_t){x})
 #define cpu_to_jemode(x) ((jmode_t){os_to_jffs2_mode(x)})
 
+#define constant_cpu_to_je16(x) ((jint16_t){x})
+#define constant_cpu_to_je32(x) ((jint32_t){x})
+
 #define je16_to_cpu(x) ((x).v16)
 #define je32_to_cpu(x) ((x).v32)
 #define jemode_to_cpu(x) (jffs2_to_os_mode((x).m))
@@ -48,6 +49,9 @@
 #define cpu_to_je32(x) ((jint32_t){cpu_to_be32(x)})
 #define cpu_to_jemode(x) ((jmode_t){cpu_to_be32(os_to_jffs2_mode(x))})
 
+#define constant_cpu_to_je16(x) ((jint16_t){__constant_cpu_to_be16(x)})
+#define constant_cpu_to_je32(x) ((jint32_t){__constant_cpu_to_be32(x)})
+
 #define je16_to_cpu(x) (be16_to_cpu(x.v16))
 #define je32_to_cpu(x) (be32_to_cpu(x.v32))
 #define jemode_to_cpu(x) (be32_to_cpu(jffs2_to_os_mode((x).m)))
@@ -56,6 +60,9 @@
 #define cpu_to_je32(x) ((jint32_t){cpu_to_le32(x)})
 #define cpu_to_jemode(x) ((jmode_t){cpu_to_le32(os_to_jffs2_mode(x))})
 
+#define constant_cpu_to_je16(x) ((jint16_t){__constant_cpu_to_le16(x)})
+#define constant_cpu_to_je32(x) ((jint32_t){__constant_cpu_to_le32(x)})
+
 #define je16_to_cpu(x) (le16_to_cpu(x.v16))
 #define je32_to_cpu(x) (le32_to_cpu(x.v32))
 #define jemode_to_cpu(x) (le32_to_cpu(jffs2_to_os_mode((x).m)))
@@ -216,7 +223,20 @@ struct jffs2_tmp_dnode_info
 	uint32_t version;
 	uint32_t data_crc;
 	uint32_t partial_crc;
-	uint32_t csize;
+	uint16_t csize;
+	uint16_t overlapped;
+};
+
+/* Temporary data structure used during readinode. */
+struct jffs2_readinode_info
+{
+	struct rb_root tn_root;
+	struct jffs2_tmp_dnode_info *mdata_tn;
+	uint32_t highest_version;
+	uint32_t latest_mctime;
+	uint32_t mctime_ver;
+	struct jffs2_full_dirent *fds;
+	struct jffs2_raw_node_ref *latest_ref;
 };
 
 struct jffs2_full_dirent
@@ -319,6 +339,15 @@ static inline struct jffs2_node_frag *frag_last(struct rb_root *root)
 #define frag_right(frag) rb_entry((frag)->rb.rb_right, struct jffs2_node_frag, rb)
 #define frag_erase(frag, list) rb_erase(&frag->rb, list);
 
+#define tn_next(tn) rb_entry(rb_next(&(tn)->rb), struct jffs2_tmp_dnode_info, rb)
+#define tn_prev(tn) rb_entry(rb_prev(&(tn)->rb), struct jffs2_tmp_dnode_info, rb)
+#define tn_parent(tn) rb_entry(rb_parent(&(tn)->rb), struct jffs2_tmp_dnode_info, rb)
+#define tn_left(tn) rb_entry((tn)->rb.rb_left, struct jffs2_tmp_dnode_info, rb)
+#define tn_right(tn) rb_entry((tn)->rb.rb_right, struct jffs2_tmp_dnode_info, rb)
+#define tn_erase(tn, list) rb_erase(&tn->rb, list);
+#define tn_last(list) rb_entry(rb_last(list), struct jffs2_tmp_dnode_info, rb)
+#define tn_first(list) rb_entry(rb_first(list), struct jffs2_tmp_dnode_info, rb)
+
 /* nodelist.c */
 void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list);
 void jffs2_set_inocache_state(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, int state);
@@ -333,8 +362,7 @@ struct rb_node *rb_next(struct rb_node *);
 struct rb_node *rb_prev(struct rb_node *);
 void rb_replace_node(struct rb_node *victim, struct rb_node *new, struct rb_root *root);
 int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn);
-void jffs2_truncate_fragtree (struct jffs2_sb_info *c, struct rb_root *list, uint32_t size);
-int jffs2_add_older_frag_to_fragtree(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_tmp_dnode_info *tn);
+uint32_t jffs2_truncate_fragtree (struct jffs2_sb_info *c, struct rb_root *list, uint32_t size);
 struct jffs2_raw_node_ref *jffs2_link_node_ref(struct jffs2_sb_info *c,
 					       struct jffs2_eraseblock *jeb,
 					       uint32_t ofs, uint32_t len,

fs/jffs2/nodemgmt.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: nodemgmt.c,v 1.127 2005/09/20 15:49:12 dedekind Exp $
- *
  */
 
 #include <linux/kernel.h>
@@ -172,6 +170,11 @@ int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
 static void jffs2_close_nextblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
 {
 
+	if (c->nextblock == NULL) {
+		D1(printk(KERN_DEBUG "jffs2_close_nextblock: Erase block at 0x%08x has already been placed in a list\n",
+		  jeb->offset));
+		return;
+	}
 	/* Check, if we have a dirty block now, or if it was dirty already */
 	if (ISDIRTY (jeb->wasted_size + jeb->dirty_size)) {
 		c->dirty_size += jeb->wasted_size;

fs/jffs2/os-linux.h

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2002-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: os-linux.h,v 1.64 2005/09/30 13:59:13 dedekind Exp $
- *
  */
 
 #ifndef __JFFS2_OS_LINUX_H__

fs/jffs2/pushpull.h

-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001, 2002 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: pushpull.h,v 1.10 2004/11/16 20:36:11 dwmw2 Exp $
- *
- */
-
-#ifndef __PUSHPULL_H__
-#define __PUSHPULL_H__
-
-#include <linux/errno.h>
-
-struct pushpull {
-	unsigned char *buf;
-	unsigned int buflen;
-	unsigned int ofs;
-	unsigned int reserve;
-};
-
-
-static inline void init_pushpull(struct pushpull *pp, char *buf, unsigned buflen, unsigned ofs, unsigned reserve)
-{
-	pp->buf = buf;
-	pp->buflen = buflen;
-	pp->ofs = ofs;
-	pp->reserve = reserve;
-}
-
-static inline int pushbit(struct pushpull *pp, int bit, int use_reserved)
-{
-	if (pp->ofs >= pp->buflen - (use_reserved?0:pp->reserve)) {
-		return -ENOSPC;
-	}
-
-	if (bit) {
-		pp->buf[pp->ofs >> 3] |= (1<<(7-(pp->ofs &7)));
-	}
-	else {
-		pp->buf[pp->ofs >> 3] &= ~(1<<(7-(pp->ofs &7)));
-	}
-	pp->ofs++;
-
-	return 0;
-}
-
-static inline int pushedbits(struct pushpull *pp)
-{
-	return pp->ofs;
-}
-
-static inline int pullbit(struct pushpull *pp)
-{
-	int bit;
-
-	bit = (pp->buf[pp->ofs >> 3] >> (7-(pp->ofs & 7))) & 1;
-
-	pp->ofs++;
-	return bit;
-}
-
-static inline int pulledbits(struct pushpull *pp)
-{
-	return pp->ofs;
-}
-
-#endif /* __PUSHPULL_H__ */

fs/jffs2/read.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: read.c,v 1.42 2005/11/07 11:14:41 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>

fs/jffs2/scan.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: scan.c,v 1.125 2005/09/30 13:59:13 dedekind Exp $
- *
  */
+
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -636,16 +635,17 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 
 		if (*(uint32_t *)(&buf[ofs-buf_ofs]) == 0xffffffff) {
 			uint32_t inbuf_ofs;
-			uint32_t empty_start;
+			uint32_t empty_start, scan_end;
 
 			empty_start = ofs;
 			ofs += 4;
+			scan_end = min_t(uint32_t, EMPTY_SCAN_SIZE(c->sector_size)/8, buf_len);
 
 			D1(printk(KERN_DEBUG "Found empty flash at 0x%08x\n", ofs));
 		more_empty:
 			inbuf_ofs = ofs - buf_ofs;
-			while (inbuf_ofs < buf_len) {
-				if (*(uint32_t *)(&buf[inbuf_ofs]) != 0xffffffff) {
+			while (inbuf_ofs < scan_end) {
+				if (unlikely(*(uint32_t *)(&buf[inbuf_ofs]) != 0xffffffff)) {
 					printk(KERN_WARNING "Empty flash at 0x%08x ends at 0x%08x\n",
 					       empty_start, ofs);
 					if ((err = jffs2_scan_dirty_space(c, jeb, ofs-empty_start)))
@@ -666,6 +666,10 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 				D1(printk(KERN_DEBUG "%d bytes at start of block seems clean... assuming all clean\n", EMPTY_SCAN_SIZE(c->sector_size)));
 				return BLK_STATE_CLEANMARKER;
 			}
+			if (!buf_size && (scan_end != buf_len)) {/* XIP/point case */
+				scan_end = buf_len;
+				goto more_empty;
+			}
 			
 			/* See how much more there is to read in this eraseblock... */
 			buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
@@ -676,6 +680,8 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 					  empty_start));
 				break;
 			}
+			/* point never reaches here */
+			scan_end = buf_len;
 			D1(printk(KERN_DEBUG "Reading another 0x%x at 0x%08x\n", buf_len, ofs));
 			err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
 			if (err)
@@ -734,18 +740,8 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 			ofs += 4;
 			continue;
 		}
-		/* Due to poor choice of crc32 seed, an all-zero node will have a correct CRC */
-		if (!je32_to_cpu(node->hdr_crc) && !je16_to_cpu(node->nodetype) &&
-		    !je16_to_cpu(node->magic) && !je32_to_cpu(node->totlen)) {
-			noisy_printk(&noise, "jffs2_scan_eraseblock(): All zero node header at 0x%08x.\n", ofs);
-			if ((err = jffs2_scan_dirty_space(c, jeb, 4)))
-				return err;
-			ofs += 4;
-			continue;
-		}
 
-		if (ofs + je32_to_cpu(node->totlen) >
-		    jeb->offset + c->sector_size) {
+		if (ofs + je32_to_cpu(node->totlen) > jeb->offset + c->sector_size) {
 			/* Eep. Node goes over the end of the erase block. */
 			printk(KERN_WARNING "Node at 0x%08x with length 0x%08x would run over the end of the erase block\n",
 			       ofs, je32_to_cpu(node->totlen));
@@ -952,8 +948,7 @@ static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_erasebloc
 				 struct jffs2_raw_inode *ri, uint32_t ofs, struct jffs2_summary *s)
 {
 	struct jffs2_inode_cache *ic;
-	uint32_t ino = je32_to_cpu(ri->ino);
-	int err;
+	uint32_t crc, ino = je32_to_cpu(ri->ino);
 
 	D1(printk(KERN_DEBUG "jffs2_scan_inode_node(): Node at 0x%08x\n", ofs));
 
@@ -966,21 +961,22 @@ static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_erasebloc
 	   Which means that the _full_ amount of time to get to proper write mode with GC
 	   operational may actually be _longer_ than before. Sucks to be me. */
 
-	ic = jffs2_get_ino_cache(c, ino);
-	if (!ic) {
-		/* Inocache get failed. Either we read a bogus ino# or it's just genuinely the
-		   first node we found for this inode. Do a CRC check to protect against the former
-		   case */
-		uint32_t crc = crc32(0, ri, sizeof(*ri)-8);
-
+	/* Check the node CRC in any case. */
+	crc = crc32(0, ri, sizeof(*ri)-8);
 	if (crc != je32_to_cpu(ri->node_crc)) {
-			printk(KERN_NOTICE "jffs2_scan_inode_node(): CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+		printk(KERN_NOTICE "jffs2_scan_inode_node(): CRC failed on "
+		       "node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
 		       ofs, je32_to_cpu(ri->node_crc), crc);
-			/* We believe totlen because the CRC on the node _header_ was OK, just the node itself failed. */
-			if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(ri->totlen)))))
-				return err;
-			return 0;
+		/*
+		 * We believe totlen because the CRC on the node
+		 * _header_ was OK, just the node itself failed.
+		 */
+		return jffs2_scan_dirty_space(c, jeb,
+					      PAD(je32_to_cpu(ri->totlen)));
 	}
+
+	ic = jffs2_get_ino_cache(c, ino);
+	if (!ic) {
 		ic = jffs2_scan_make_ino_cache(c, ino);
 		if (!ic)
 			return -ENOMEM;

fs/jffs2/security.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2006  NEC Corporation
+ * Copyright © 2006  NEC Corporation
  *
  * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/fs.h>

fs/jffs2/summary.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2004  Ferenc Havasi <havasi@inf.u-szeged.hu>,
+ * Copyright © 2004  Ferenc Havasi <havasi@inf.u-szeged.hu>,
  *                   Zoltan Sogor <weth@inf.u-szeged.hu>,
  *                   Patrik Kluba <pajko@halom.u-szeged.hu>,
  *                   University of Szeged, Hungary
@@ -9,8 +9,6 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: summary.c,v 1.4 2005/09/26 11:37:21 havasi Exp $
- *
  */
 
 #include <linux/kernel.h>

fs/jffs2/summary.h

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2004  Ferenc Havasi <havasi@inf.u-szeged.hu>,
+ * Copyright © 2004  Ferenc Havasi <havasi@inf.u-szeged.hu>,
  *                   Zoltan Sogor <weth@inf.u-szeged.hu>,
  *                   Patrik Kluba <pajko@halom.u-szeged.hu>,
  *                   University of Szeged, Hungary
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: summary.h,v 1.2 2005/09/26 11:37:21 havasi Exp $
- *
  */
 
 #ifndef JFFS2_SUMMARY_H

fs/jffs2/super.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: super.c,v 1.110 2005/11/07 11:14:42 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>
@@ -347,7 +345,7 @@ static int __init init_jffs2_fs(void)
 #ifdef CONFIG_JFFS2_SUMMARY
 	       " (SUMMARY) "
 #endif
-	       " (C) 2001-2006 Red Hat, Inc.\n");
+	       " © 2001-2006 Red Hat, Inc.\n");
 
 	jffs2_inode_cachep = kmem_cache_create("jffs2_i",
 					     sizeof(struct jffs2_inode_info),

fs/jffs2/symlink.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001, 2002 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: symlink.c,v 1.19 2005/11/07 11:14:42 gleixner Exp $
- *
  */
 
-
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/fs.h>

fs/jffs2/wbuf.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
- * Copyright (C) 2004 Thomas Gleixner <tglx@linutronix.de>
+ * Copyright © 2001-2007 Red Hat, Inc.
+ * Copyright © 2004 Thomas Gleixner <tglx@linutronix.de>
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  * Modified debugged and enhanced by Thomas Gleixner <tglx@linutronix.de>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: wbuf.c,v 1.100 2005/09/30 13:59:13 dedekind Exp $
- *
  */
 
 #include <linux/kernel.h>
@@ -345,6 +343,9 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
 		return;
 	}
 
+	/* The summary is not recovered, so it must be disabled for this erase block */
+	jffs2_sum_disable_collecting(c->summary);
+
 	ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, nr_refile);
 	if (ret) {
 		printk(KERN_WARNING "Failed to allocate node refs for wbuf recovery. Data loss ensues.\n");
@@ -967,9 +968,9 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re
 
 static const struct jffs2_unknown_node oob_cleanmarker =
 {
-	.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
-	.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-	.totlen = cpu_to_je32(8)
+	.magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
+	.nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
+	.totlen = constant_cpu_to_je32(8)
 };
 
 /*

fs/jffs2/write.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: write.c,v 1.97 2005/11/07 11:14:42 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>
@@ -507,8 +505,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
 	uint32_t alloclen;
 	int ret;
 
-	if (1 /* alternative branch needs testing */ ||
-	    !jffs2_can_mark_obsolete(c)) {
+	if (!jffs2_can_mark_obsolete(c)) {
 		/* We can't mark stuff obsolete on the medium. We need to write a deletion dirent */
 
 		rd = jffs2_alloc_raw_dirent();

fs/jffs2/writev.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001, 2002 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: writev.c,v 1.8 2005/09/09 15:11:58 havasi Exp $
- *
  */
 
 #include <linux/kernel.h>

fs/jffs2/xattr.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2006  NEC Corporation
+ * Copyright © 2006  NEC Corporation
  *
  * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/fs.h>

fs/jffs2/xattr.h

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2006  NEC Corporation
+ * Copyright © 2006  NEC Corporation
  *
  * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
+
 #ifndef _JFFS2_FS_XATTR_H_
 #define _JFFS2_FS_XATTR_H_
 

fs/jffs2/xattr_trusted.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2006  NEC Corporation
+ * Copyright © 2006  NEC Corporation
  *
  * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
+
 #include <linux/kernel.h>
 #include <linux/fs.h>
 #include <linux/jffs2.h>

fs/jffs2/xattr_user.c

 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2006  NEC Corporation
+ * Copyright © 2006  NEC Corporation
  *
  * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
+
 #include <linux/kernel.h>
 #include <linux/fs.h>
 #include <linux/jffs2.h>

include/linux/mtd/mtd.h

@@ -53,6 +53,7 @@ struct mtd_erase_region_info {
 	u_int32_t offset;			/* At which this region starts, from the beginning of the MTD */
 	u_int32_t erasesize;		/* For this region */
 	u_int32_t numblocks;		/* Number of blocks of erasesize in this region */
+	unsigned long *lockmap;		/* If keeping bitmap of locks */
 };
 
 /*

include/linux/mtd/nand.h

@@ -431,6 +431,7 @@ struct nand_chip {
 #define NAND_MFR_RENESAS	0x07
 #define NAND_MFR_STMICRO	0x20
 #define NAND_MFR_HYNIX		0xad
+#define NAND_MFR_MICRON		0x2c
 
 /**
  * struct nand_flash_dev - NAND Flash Device ID Structure