Merge branch 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6
* 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6:
NFS: Fix nfs_page use after free issues in fs/nfs/write.c
NFSv4: Fix incorrect semaphore release in _nfs4_do_open()
NFS: Fix Oopsable condition in nfs_readpage_sync()
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 87a1733..71d05f4 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1189,8 +1189,6 @@
Mechanism 2.
nommconf [IA-32,X86_64] Disable use of MMCONFIG for PCI
Configuration
- mmconf [IA-32,X86_64] Force MMCONFIG. This is useful
- to override the builtin blacklist.
nomsi [MSI] If the PCI_MSI kernel config parameter is
enabled, this kernel boot option can be used to
disable the use of MSI interrupts system-wide.
diff --git a/Makefile b/Makefile
index a086e32..47e21c0 100644
--- a/Makefile
+++ b/Makefile
@@ -1082,6 +1082,7 @@
@echo 'Static analysers'
@echo ' checkstack - Generate a list of stack hogs'
@echo ' namespacecheck - Name space analysis on compiled kernel'
+ @echo ' headers_check - Sanity check on exported headers'
@echo ''
@echo 'Kernel packaging:'
@$(MAKE) $(build)=$(package-dir) help
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 345ffb7..f168220 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -956,6 +956,38 @@
return 0;
}
+ /*
+ * This function checks if the entire range <start,end> is mapped with type.
+ *
+ * Note: this function only works correct if the e820 table is sorted and
+ * not-overlapping, which is the case
+ */
+int __init
+e820_all_mapped(unsigned long s, unsigned long e, unsigned type)
+{
+ u64 start = s;
+ u64 end = e;
+ int i;
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+ if (type && ei->type != type)
+ continue;
+ /* is the region (part) in overlap with the current region ?*/
+ if (ei->addr >= end || ei->addr + ei->size <= start)
+ continue;
+ /* if the region is at the beginning of <start,end> we move
+ * start to the end of the region since it's ok until there
+ */
+ if (ei->addr <= start)
+ start = ei->addr + ei->size;
+ /* if start is now at or beyond end, we're done, full
+ * coverage */
+ if (start >= end)
+ return 1; /* we're done */
+ }
+ return 0;
+}
+
/*
* Find the highest page frame number we have available
*/
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index 1220dd8..0a362e3 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -237,11 +237,6 @@
pci_probe &= ~PCI_PROBE_MMCONF;
return NULL;
}
- /* override DMI blacklist */
- else if (!strcmp(str, "mmconf")) {
- pci_probe |= PCI_PROBE_MMCONF_FORCE;
- return NULL;
- }
#endif
else if (!strcmp(str, "noacpi")) {
acpi_noirq_set();
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index ef5a2fa..972180f 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -12,7 +12,6 @@
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/acpi.h>
-#include <linux/dmi.h>
#include <asm/e820.h>
#include "pci.h"
@@ -188,31 +187,9 @@
}
}
-static int disable_mcfg(struct dmi_system_id *d)
-{
- printk("PCI: %s detected. Disabling MCFG.\n", d->ident);
- pci_probe &= ~PCI_PROBE_MMCONF;
- return 0;
-}
-
-static struct dmi_system_id __initdata dmi_bad_mcfg[] = {
- /* Has broken MCFG table that makes the system hang when used */
- {
- .callback = disable_mcfg,
- .ident = "Intel D3C5105 SDV",
- .matches = {
- DMI_MATCH(DMI_BIOS_VENDOR, "Intel"),
- DMI_MATCH(DMI_BOARD_NAME, "D26928"),
- },
- },
- {}
-};
-
void __init pci_mmcfg_init(void)
{
- dmi_check_system(dmi_bad_mcfg);
-
- if ((pci_probe & (PCI_PROBE_MMCONF_FORCE|PCI_PROBE_MMCONF)) == 0)
+ if ((pci_probe & PCI_PROBE_MMCONF) == 0)
return;
acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
@@ -221,6 +198,15 @@
(pci_mmcfg_config[0].base_address == 0))
return;
+ if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
+ pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
+ E820_RESERVED)) {
+ printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
+ pci_mmcfg_config[0].base_address);
+ printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
+ return;
+ }
+
printk(KERN_INFO "PCI: Using MMCONFIG\n");
raw_pci_ops = &pci_mmcfg;
pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h
index 49a849b..bf4e793 100644
--- a/arch/i386/pci/pci.h
+++ b/arch/i386/pci/pci.h
@@ -16,8 +16,7 @@
#define PCI_PROBE_CONF1 0x0002
#define PCI_PROBE_CONF2 0x0004
#define PCI_PROBE_MMCONF 0x0008
-#define PCI_PROBE_MMCONF_FORCE 0x0010
-#define PCI_PROBE_MASK 0x00ff
+#define PCI_PROBE_MASK 0x000f
#define PCI_NO_SORT 0x0100
#define PCI_BIOS_SORT 0x0200
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index 764bf23..d6d7f73 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -108,6 +108,35 @@
return 0;
}
+/*
+ * This function checks if the entire range <start,end> is mapped with type.
+ *
+ * Note: this function only works correct if the e820 table is sorted and
+ * not-overlapping, which is the case
+ */
+int __init e820_all_mapped(unsigned long start, unsigned long end, unsigned type)
+{
+ int i;
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+ if (type && ei->type != type)
+ continue;
+ /* is the region (part) in overlap with the current region ?*/
+ if (ei->addr >= end || ei->addr + ei->size <= start)
+ continue;
+
+ /* if the region is at the beginning of <start,end> we move
+ * start to the end of the region since it's ok until there
+ */
+ if (ei->addr <= start)
+ start = ei->addr + ei->size;
+ /* if start is now at or beyond end, we're done, full coverage */
+ if (start >= end)
+ return 1; /* we're done */
+ }
+ return 0;
+}
+
/*
* Find a free area in a specific range.
*/
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index 2d48a79..3c55c76 100644
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -9,7 +9,6 @@
#include <linux/init.h>
#include <linux/acpi.h>
#include <linux/bitmap.h>
-#include <linux/dmi.h>
#include <asm/e820.h>
#include "pci.h"
@@ -165,33 +164,11 @@
}
}
-static int disable_mcfg(struct dmi_system_id *d)
-{
- printk("PCI: %s detected. Disabling MCFG.\n", d->ident);
- pci_probe &= ~PCI_PROBE_MMCONF;
- return 0;
-}
-
-static struct dmi_system_id __initdata dmi_bad_mcfg[] = {
- /* Has broken MCFG table that makes the system hang when used */
- {
- .callback = disable_mcfg,
- .ident = "Intel D3C5105 SDV",
- .matches = {
- DMI_MATCH(DMI_BIOS_VENDOR, "Intel"),
- DMI_MATCH(DMI_BOARD_NAME, "D26928"),
- },
- },
- {}
-};
-
void __init pci_mmcfg_init(void)
{
int i;
- dmi_check_system(dmi_bad_mcfg);
-
- if ((pci_probe & (PCI_PROBE_MMCONF|PCI_PROBE_MMCONF_FORCE)) == 0)
+ if ((pci_probe & PCI_PROBE_MMCONF) == 0)
return;
acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
@@ -200,6 +177,15 @@
(pci_mmcfg_config[0].base_address == 0))
return;
+ if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
+ pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
+ E820_RESERVED)) {
+ printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
+ pci_mmcfg_config[0].base_address);
+ printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
+ return;
+ }
+
/* RED-PEN i386 doesn't do _nocache right now */
pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * pci_mmcfg_config_num, GFP_KERNEL);
if (pci_mmcfg_virt == NULL) {
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 39edb82..7ea49a0 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -908,7 +908,7 @@
static int __xipram xip_wait_for_operation(
struct map_info *map, struct flchip *chip,
- unsigned long adr, int *chip_op_time )
+ unsigned long adr, unsigned int chip_op_time )
{
struct cfi_private *cfi = map->fldrv_priv;
struct cfi_pri_intelext *cfip = cfi->cmdset_priv;
@@ -917,7 +917,7 @@
flstate_t oldstate, newstate;
start = xip_currtime();
- usec = *chip_op_time * 8;
+ usec = chip_op_time * 8;
if (usec == 0)
usec = 500000;
done = 0;
@@ -1027,8 +1027,8 @@
#define XIP_INVAL_CACHED_RANGE(map, from, size) \
INVALIDATE_CACHED_RANGE(map, from, size)
-#define INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, inval_adr, inval_len, p_usec) \
- xip_wait_for_operation(map, chip, cmd_adr, p_usec)
+#define INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, inval_adr, inval_len, usec) \
+ xip_wait_for_operation(map, chip, cmd_adr, usec)
#else
@@ -1040,64 +1040,64 @@
static int inval_cache_and_wait_for_operation(
struct map_info *map, struct flchip *chip,
unsigned long cmd_adr, unsigned long inval_adr, int inval_len,
- int *chip_op_time )
+ unsigned int chip_op_time)
{
struct cfi_private *cfi = map->fldrv_priv;
map_word status, status_OK = CMD(0x80);
- int z, chip_state = chip->state;
- unsigned long timeo;
+ int chip_state = chip->state;
+ unsigned int timeo, sleep_time;
spin_unlock(chip->mutex);
if (inval_len)
INVALIDATE_CACHED_RANGE(map, inval_adr, inval_len);
- if (*chip_op_time)
- cfi_udelay(*chip_op_time);
spin_lock(chip->mutex);
- timeo = *chip_op_time * 8 * HZ / 1000000;
- if (timeo < HZ/2)
- timeo = HZ/2;
- timeo += jiffies;
+ /* set our timeout to 8 times the expected delay */
+ timeo = chip_op_time * 8;
+ if (!timeo)
+ timeo = 500000;
+ sleep_time = chip_op_time / 2;
- z = 0;
for (;;) {
- if (chip->state != chip_state) {
- /* Someone's suspended the operation: sleep */
- DECLARE_WAITQUEUE(wait, current);
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&chip->wq, &wait);
- spin_unlock(chip->mutex);
- schedule();
- remove_wait_queue(&chip->wq, &wait);
- timeo = jiffies + (HZ / 2); /* FIXME */
- spin_lock(chip->mutex);
- continue;
- }
-
status = map_read(map, cmd_adr);
if (map_word_andequal(map, status, status_OK, status_OK))
break;
- /* OK Still waiting */
- if (time_after(jiffies, timeo)) {
+ if (!timeo) {
map_write(map, CMD(0x70), cmd_adr);
chip->state = FL_STATUS;
return -ETIME;
}
- /* Latency issues. Drop the lock, wait a while and retry */
- z++;
+ /* OK Still waiting. Drop the lock, wait a while and retry. */
spin_unlock(chip->mutex);
- cfi_udelay(1);
+ if (sleep_time >= 1000000/HZ) {
+ /*
+ * Half of the normal delay still remaining
+ * can be performed with a sleeping delay instead
+ * of busy waiting.
+ */
+ msleep(sleep_time/1000);
+ timeo -= sleep_time;
+ sleep_time = 1000000/HZ;
+ } else {
+ udelay(1);
+ cond_resched();
+ timeo--;
+ }
spin_lock(chip->mutex);
- }
- if (!z) {
- if (!--(*chip_op_time))
- *chip_op_time = 1;
- } else if (z > 1)
- ++(*chip_op_time);
+ if (chip->state != chip_state) {
+ /* Someone's suspended the operation: sleep */
+ DECLARE_WAITQUEUE(wait, current);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+ spin_unlock(chip->mutex);
+ schedule();
+ remove_wait_queue(&chip->wq, &wait);
+ spin_lock(chip->mutex);
+ }
+ }
/* Done and happy. */
chip->state = FL_STATUS;
@@ -1107,8 +1107,7 @@
#endif
#define WAIT_TIMEOUT(map, chip, adr, udelay) \
- ({ int __udelay = (udelay); \
- INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, &__udelay); })
+ INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, udelay);
static int do_point_onechip (struct map_info *map, struct flchip *chip, loff_t adr, size_t len)
@@ -1332,7 +1331,7 @@
ret = INVAL_CACHE_AND_WAIT(map, chip, adr,
adr, map_bankwidth(map),
- &chip->word_write_time);
+ chip->word_write_time);
if (ret) {
xip_enable(map, chip, adr);
printk(KERN_ERR "%s: word write error (status timeout)\n", map->name);
@@ -1569,7 +1568,7 @@
ret = INVAL_CACHE_AND_WAIT(map, chip, cmd_adr,
adr, len,
- &chip->buffer_write_time);
+ chip->buffer_write_time);
if (ret) {
map_write(map, CMD(0x70), cmd_adr);
chip->state = FL_STATUS;
@@ -1704,7 +1703,7 @@
ret = INVAL_CACHE_AND_WAIT(map, chip, adr,
adr, len,
- &chip->erase_time);
+ chip->erase_time);
if (ret) {
map_write(map, CMD(0x70), adr);
chip->state = FL_STATUS;
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 9885726..a482e89 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -45,9 +45,11 @@
#define MAX_WORD_RETRIES 3
#define MANUFACTURER_AMD 0x0001
+#define MANUFACTURER_ATMEL 0x001F
#define MANUFACTURER_SST 0x00BF
#define SST49LF004B 0x0060
#define SST49LF008A 0x005a
+#define AT49BV6416 0x00d6
static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
@@ -68,6 +70,9 @@
static void put_chip(struct map_info *map, struct flchip *chip, unsigned long adr);
#include "fwh_lock.h"
+static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, size_t len);
+static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, size_t len);
+
static struct mtd_chip_driver cfi_amdstd_chipdrv = {
.probe = NULL, /* Not usable directly */
.destroy = cfi_amdstd_destroy,
@@ -161,6 +166,26 @@
}
}
+/* Atmel chips don't use the same PRI format as AMD chips */
+static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param)
+{
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+ struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
+ struct cfi_pri_atmel atmel_pri;
+
+ memcpy(&atmel_pri, extp, sizeof(atmel_pri));
+ memset((char *)extp + 5, 0, sizeof(*extp) - 5);
+
+ if (atmel_pri.Features & 0x02)
+ extp->EraseSuspend = 2;
+
+ if (atmel_pri.BottomBoot)
+ extp->TopBottom = 2;
+ else
+ extp->TopBottom = 3;
+}
+
static void fixup_use_secsi(struct mtd_info *mtd, void *param)
{
/* Setup for chips with a secsi area */
@@ -179,6 +204,16 @@
}
+/*
+ * Some Atmel chips (e.g. the AT49BV6416) power-up with all sectors
+ * locked by default.
+ */
+static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param)
+{
+ mtd->lock = cfi_atmel_lock;
+ mtd->unlock = cfi_atmel_unlock;
+}
+
static struct cfi_fixup cfi_fixup_table[] = {
#ifdef AMD_BOOTLOC_BUG
{ CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL },
@@ -192,6 +227,7 @@
#if !FORCE_WORD_WRITE
{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
#endif
+ { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
{ 0, 0, NULL, NULL }
};
static struct cfi_fixup jedec_fixup_table[] = {
@@ -207,6 +243,7 @@
* we know that is the case.
*/
{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_erase_chip, NULL },
+ { CFI_MFR_ATMEL, AT49BV6416, fixup_use_atmel_lock, NULL },
{ 0, 0, NULL, NULL }
};
@@ -1607,6 +1644,80 @@
return 0;
}
+static int do_atmel_lock(struct map_info *map, struct flchip *chip,
+ unsigned long adr, int len, void *thunk)
+{
+ struct cfi_private *cfi = map->fldrv_priv;
+ int ret;
+
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, adr + chip->start, FL_LOCKING);
+ if (ret)
+ goto out_unlock;
+ chip->state = FL_LOCKING;
+
+ DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n",
+ __func__, adr, len);
+
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi,
+ cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi,
+ cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi,
+ cfi->device_type, NULL);
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi,
+ cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi,
+ cfi->device_type, NULL);
+ map_write(map, CMD(0x40), chip->start + adr);
+
+ chip->state = FL_READY;
+ put_chip(map, chip, adr + chip->start);
+ ret = 0;
+
+out_unlock:
+ spin_unlock(chip->mutex);
+ return ret;
+}
+
+static int do_atmel_unlock(struct map_info *map, struct flchip *chip,
+ unsigned long adr, int len, void *thunk)
+{
+ struct cfi_private *cfi = map->fldrv_priv;
+ int ret;
+
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, adr + chip->start, FL_UNLOCKING);
+ if (ret)
+ goto out_unlock;
+ chip->state = FL_UNLOCKING;
+
+ DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n",
+ __func__, adr, len);
+
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi,
+ cfi->device_type, NULL);
+ map_write(map, CMD(0x70), adr);
+
+ chip->state = FL_READY;
+ put_chip(map, chip, adr + chip->start);
+ ret = 0;
+
+out_unlock:
+ spin_unlock(chip->mutex);
+ return ret;
+}
+
+static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
+{
+ return cfi_varsize_frob(mtd, do_atmel_lock, ofs, len, NULL);
+}
+
+static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
+{
+ return cfi_varsize_frob(mtd, do_atmel_unlock, ofs, len, NULL);
+}
+
static void cfi_amdstd_sync (struct mtd_info *mtd)
{
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index 8f39d0a..1154dac 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -111,6 +111,7 @@
#define MX29LV040C 0x004F
#define MX29LV160T 0x22C4
#define MX29LV160B 0x2249
+#define MX29F040 0x00A4
#define MX29F016 0x00AD
#define MX29F002T 0x00B0
#define MX29F004T 0x0045
@@ -1172,6 +1173,19 @@
}
}, {
.mfr_id = MANUFACTURER_MACRONIX,
+ .dev_id = MX29F040,
+ .name = "Macronix MX29F040",
+ .uaddr = {
+ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
+ },
+ .DevSize = SIZE_512KiB,
+ .CmdSet = P_ID_AMD_STD,
+ .NumEraseRegions= 1,
+ .regions = {
+ ERASEINFO(0x10000,8),
+ }
+ }, {
+ .mfr_id = MANUFACTURER_MACRONIX,
.dev_id = MX29F016,
.name = "Macronix MX29F016",
.uaddr = {
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index ede3561..401c6a2 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -18,6 +18,7 @@
#include <linux/mtd/mtd.h>
#include <linux/buffer_head.h>
#include <linux/mutex.h>
+#include <linux/mount.h>
#define VERSION "$Revision: 1.30 $"
@@ -236,6 +237,8 @@
}
return 0;
}
+
+
static int block2mtd_write(struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, const u_char *buf)
{
@@ -299,6 +302,19 @@
/* Get a handle on the device */
bdev = open_bdev_excl(devname, O_RDWR, NULL);
+#ifndef MODULE
+ if (IS_ERR(bdev)) {
+
+ /* 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);
+ }
+ }
+#endif
+
if (IS_ERR(bdev)) {
ERROR("error: cannot open device %s", devname);
goto devinit_err;
@@ -393,26 +409,6 @@
}
-static int parse_name(char **pname, const char *token, size_t limit)
-{
- size_t len;
- char *name;
-
- len = strlen(token) + 1;
- if (len > limit)
- return -ENOSPC;
-
- name = kmalloc(len, GFP_KERNEL);
- if (!name)
- return -ENOMEM;
-
- strcpy(name, token);
-
- *pname = name;
- return 0;
-}
-
-
static inline void kill_final_newline(char *str)
{
char *newline = strrchr(str, '\n');
@@ -426,9 +422,15 @@
return 0; \
} while (0)
-static int block2mtd_setup(const char *val, struct kernel_param *kp)
+#ifndef MODULE
+static int block2mtd_init_called = 0;
+static __initdata char block2mtd_paramline[80 + 12]; /* 80 for device, 12 for erase size */
+#endif
+
+
+static int block2mtd_setup2(const char *val)
{
- char buf[80+12]; /* 80 for device, 12 for erase size */
+ char buf[80 + 12]; /* 80 for device, 12 for erase size */
char *str = buf;
char *token[2];
char *name;
@@ -450,13 +452,9 @@
if (!token[0])
parse_err("no argument");
- ret = parse_name(&name, token[0], 80);
- if (ret == -ENOMEM)
- parse_err("out of memory");
- if (ret == -ENOSPC)
- parse_err("name too long");
- if (ret)
- return 0;
+ name = token[0];
+ if (strlen(name) + 1 > 80)
+ parse_err("device name too long");
if (token[1]) {
ret = parse_num(&erase_size, token[1]);
@@ -472,13 +470,48 @@
}
+static int block2mtd_setup(const char *val, struct kernel_param *kp)
+{
+#ifdef MODULE
+ return block2mtd_setup2(val);
+#else
+ /* If more parameters are later passed in via
+ /sys/module/block2mtd/parameters/block2mtd
+ and block2mtd_init() has already been called,
+ we can parse the argument now. */
+
+ if (block2mtd_init_called)
+ return block2mtd_setup2(val);
+
+ /* During early boot stage, we only save the parameters
+ here. We must parse them later: if the param passed
+ from kernel boot command line, block2mtd_setup() is
+ called so early that it is not possible to resolve
+ the device (even kmalloc() fails). Deter that work to
+ block2mtd_setup2(). */
+
+ strlcpy(block2mtd_paramline, val, sizeof(block2mtd_paramline));
+
+ return 0;
+#endif
+}
+
+
module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200);
MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\"");
static int __init block2mtd_init(void)
{
+ int ret = 0;
INFO("version " VERSION);
- return 0;
+
+#ifndef MODULE
+ if (strlen(block2mtd_paramline))
+ ret = block2mtd_setup2(block2mtd_paramline);
+ block2mtd_init_called = 1;
+#endif
+
+ return ret;
}
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index a846614..ef4a731 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -406,13 +406,13 @@
static struct flash_info __devinitdata m25p_data [] = {
/* REVISIT: fill in JEDEC ids, for parts that have them */
- { "m25p05", 0x05, 0x0000, 32 * 1024, 2 },
- { "m25p10", 0x10, 0x0000, 32 * 1024, 4 },
- { "m25p20", 0x11, 0x0000, 64 * 1024, 4 },
- { "m25p40", 0x12, 0x0000, 64 * 1024, 8 },
+ { "m25p05", 0x05, 0x2010, 32 * 1024, 2 },
+ { "m25p10", 0x10, 0x2011, 32 * 1024, 4 },
+ { "m25p20", 0x11, 0x2012, 64 * 1024, 4 },
+ { "m25p40", 0x12, 0x2013, 64 * 1024, 8 },
{ "m25p80", 0x13, 0x0000, 64 * 1024, 16 },
- { "m25p16", 0x14, 0x0000, 64 * 1024, 32 },
- { "m25p32", 0x15, 0x0000, 64 * 1024, 64 },
+ { "m25p16", 0x14, 0x2015, 64 * 1024, 32 },
+ { "m25p32", 0x15, 0x2016, 64 * 1024, 64 },
{ "m25p64", 0x16, 0x2017, 64 * 1024, 128 },
};
diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index 6f9bbf6..2c01497 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -99,10 +99,6 @@
#include <asm/system.h>
#include <linux/pci.h>
-#ifndef CONFIG_PCI
-#error Enable PCI in your kernel config
-#endif
-
#include <linux/mtd/mtd.h>
#include <linux/mtd/pmc551.h>
#include <linux/mtd/compatmac.h>
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 83d0b2a..64d1b6a 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -13,13 +13,13 @@
config MTD_PHYSMAP
tristate "CFI Flash device in physical memory map"
- depends on MTD_CFI
+ depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM
help
- This provides a 'mapping' driver which allows the CFI probe and
- command set driver code to communicate with flash chips which
- are mapped physically into the CPU's memory. You will need to
- configure the physical address and size of the flash chips on
- your particular board as well as the bus width, either statically
+ This provides a 'mapping' driver which allows the NOR Flash and
+ ROM driver code to communicate with chips which are mapped
+ physically into the CPU's memory. You will need to configure
+ the physical address and size of the flash chips on your
+ particular board as well as the bus width, either statically
with config options or at run-time.
config MTD_PHYSMAP_START
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index fb8b4f7..5b6acfc 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -62,15 +62,12 @@
struct mtd_info *mtd = mfi->mtd;
switch (orig) {
- case 0:
- /* SEEK_SET */
+ case SEEK_SET:
break;
- case 1:
- /* SEEK_CUR */
+ case SEEK_CUR:
offset += file->f_pos;
break;
- case 2:
- /* SEEK_END */
+ case SEEK_END:
offset += mtd->size;
break;
default:
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 3db77ee..c99302e 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -11,7 +11,7 @@
help
This enables support for accessing all type of NAND flash
devices. For further information see
- <http://www.linux-mtd.infradead.org/tech/nand.html>.
+ <http://www.linux-mtd.infradead.org/doc/nand.html>.
config MTD_NAND_VERIFY_WRITE
bool "Verify NAND page writes"
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 0a54d00..975b2ef 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2224,7 +2224,7 @@
}
/* Try to identify manufacturer */
- for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_id++) {
+ for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_idx++) {
if (nand_manuf_ids[maf_idx].id == *maf_id)
break;
}
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c
index fbeedc3..51c7288 100644
--- a/drivers/mtd/nand/sharpsl.c
+++ b/drivers/mtd/nand/sharpsl.c
@@ -78,7 +78,7 @@
/*
* hardware specific access to control-lines
* ctrl:
- * NAND_CNE: bit 0 -> bit 0 & 4
+ * NAND_CNE: bit 0 -> ! bit 0 & 4
* NAND_CLE: bit 1 -> bit 1
* NAND_ALE: bit 2 -> bit 2
*
@@ -92,7 +92,10 @@
unsigned char bits = ctrl & 0x07;
bits |= (ctrl & 0x01) << 4;
- writeb((readb(FLASHCTL) & 0x17) | bits, FLASHCTL);
+
+ bits ^= 0x11;
+
+ writeb((readb(FLASHCTL) & ~0x17) | bits, FLASHCTL);
}
if (cmd != NAND_CMD_NONE)
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index d487043..b1981d0 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -539,7 +539,6 @@
#endif /* EXT2FS_DEBUG */
-/* Superblock must be locked */
unsigned long ext2_count_free_blocks (struct super_block * sb)
{
struct ext2_group_desc * desc;
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index de85c61..695f69c 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -637,7 +637,6 @@
return ERR_PTR(err);
}
-/* Superblock must be locked */
unsigned long ext2_count_free_inodes (struct super_block * sb)
{
struct ext2_group_desc *desc;
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index ca5bfb6..4286ff6 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1083,7 +1083,6 @@
unsigned long overhead;
int i;
- lock_super(sb);
if (test_opt (sb, MINIX_DF))
overhead = 0;
else {
@@ -1124,7 +1123,6 @@
buf->f_files = le32_to_cpu(sbi->s_es->s_inodes_count);
buf->f_ffree = ext2_count_free_inodes (sb);
buf->f_namelen = EXT2_NAME_LEN;
- unlock_super(sb);
return 0;
}
diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c
index 7675b33..5a6b4d6 100644
--- a/fs/jffs2/nodelist.c
+++ b/fs/jffs2/nodelist.c
@@ -21,6 +21,9 @@
#include <linux/pagemap.h>
#include "nodelist.h"
+static void jffs2_obsolete_node_frag(struct jffs2_sb_info *c,
+ struct jffs2_node_frag *this);
+
void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list)
{
struct jffs2_full_dirent **prev = list;
@@ -87,7 +90,8 @@
}
}
-void jffs2_obsolete_node_frag(struct jffs2_sb_info *c, struct jffs2_node_frag *this)
+static void jffs2_obsolete_node_frag(struct jffs2_sb_info *c,
+ struct jffs2_node_frag *this)
{
if (this->node) {
this->node->frags--;
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index cae92c1..0ddfd70 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -334,7 +334,6 @@
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);
-void jffs2_obsolete_node_frag(struct jffs2_sb_info *c, struct jffs2_node_frag *this);
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);
diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index 25bc1ae..4da09ce 100644
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -1215,7 +1215,6 @@
rc = jffs2_reserve_space_gc(c, totlen, &length, JFFS2_SUMMARY_XATTR_SIZE);
if (rc) {
JFFS2_WARNING("jffs2_reserve_space_gc()=%d, request=%u\n", rc, totlen);
- rc = rc ? rc : -EBADFD;
goto out;
}
rc = save_xattr_datum(c, xd);
diff --git a/include/asm-m68k/page.h b/include/asm-m68k/page.h
index db017f8..fcc165d 100644
--- a/include/asm-m68k/page.h
+++ b/include/asm-m68k/page.h
@@ -2,6 +2,8 @@
#define _M68K_PAGE_H
+#ifdef __KERNEL__
+
/* PAGE_SHIFT determines the page size */
#ifndef CONFIG_SUN3
#define PAGE_SHIFT (12)
@@ -15,8 +17,6 @@
#endif
#define PAGE_MASK (~(PAGE_SIZE-1))
-#ifdef __KERNEL__
-
#include <asm/setup.h>
#if PAGE_SHIFT < 13
@@ -175,8 +175,8 @@
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-#endif /* __KERNEL__ */
-
#include <asm-generic/page.h>
+#endif /* __KERNEL__ */
+
#endif /* _M68K_PAGE_H */
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index 0695bc9..57d6d82 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -1,22 +1,14 @@
#ifndef _PARISC_PAGE_H
#define _PARISC_PAGE_H
-#if !defined(__KERNEL__)
-/* this is for userspace applications (4k page size) */
-# define PAGE_SHIFT 12 /* 4k */
-# define PAGE_SIZE (1UL << PAGE_SHIFT)
-# define PAGE_MASK (~(PAGE_SIZE-1))
-#endif
-
-
#ifdef __KERNEL__
#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
-# define PAGE_SHIFT 12 /* 4k */
+# define PAGE_SHIFT 12
#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB)
-# define PAGE_SHIFT 14 /* 16k */
+# define PAGE_SHIFT 14
#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB)
-# define PAGE_SHIFT 16 /* 64k */
+# define PAGE_SHIFT 16
#else
# error "unknown default kernel page size"
#endif
@@ -188,9 +180,9 @@
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-#endif /* __KERNEL__ */
-
#include <asm-generic/memory_model.h>
#include <asm-generic/page.h>
+#endif /* __KERNEL__ */
+
#endif /* _PARISC_PAGE_H */
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 09bfae6..123948b 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -199,6 +199,18 @@
uint8_t TopBottom;
} __attribute__((packed));
+/* Vendor-Specific PRI for Atmel chips (command set 0x0002) */
+
+struct cfi_pri_atmel {
+ uint8_t pri[3];
+ uint8_t MajorVersion;
+ uint8_t MinorVersion;
+ uint8_t Features;
+ uint8_t BottomBoot;
+ uint8_t BurstMode;
+ uint8_t PageMode;
+} __attribute__((packed));
+
struct cfi_pri_query {
uint8_t NumFields;
uint32_t ProtField[1]; /* Not host ordered */
@@ -464,6 +476,7 @@
#define CFI_ID_ANY 0xffff
#define CFI_MFR_AMD 0x0001
+#define CFI_MFR_ATMEL 0x001F
#define CFI_MFR_ST 0x0020 /* STMicroelectronics */
void cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups);
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 9336f2e..ac1f850 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -252,7 +252,7 @@
mask_ack_irq(desc, irq);
if (unlikely(desc->status & IRQ_INPROGRESS))
- goto out;
+ goto out_unlock;
desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
kstat_cpu(cpu).irqs[irq]++;
@@ -263,7 +263,7 @@
action = desc->action;
if (unlikely(!action || (desc->status & IRQ_DISABLED))) {
desc->status |= IRQ_PENDING;
- goto out;
+ goto out_unlock;
}
desc->status |= IRQ_INPROGRESS;
@@ -276,9 +276,9 @@
spin_lock(&desc->lock);
desc->status &= ~IRQ_INPROGRESS;
-out:
if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
desc->chip->unmask(irq);
+out_unlock:
spin_unlock(&desc->lock);
}
