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

* git://git.infradead.org/mtd-2.6:
  [MTD] NAND: Select chip before checking write protect status
  [MTD] CORE mtdchar.c: fix off-by-one error in lseek()
  [MTD] NAND: Fix typo in mtd/nand/ts7250.c
  [JFFS2][XATTR] coexistence between xattr and write buffering support.
  [JFFS2][XATTR] Fix wrong copyright
  [JFFS2][XATTR] Re-define xd->refcnt as atomic_t
  [JFFS2][XATTR] Fix memory leak with jffs2_xattr_ref
  [JFFS2][XATTR] rid unnecessary writing of delete marker.
  [JFFS2][XATTR] Fix ACL bug when updating null xattr by null ACL.
  [JFFS2][XATTR] using 'delete marker' for xdatum/xref deletion
  [MTD] Fix off-by-one error in physmap.c
  [MTD] Remove unused 'nr_banks' variable from ixp2000 map driver
  [MTD NAND] s3c2412 support in s3c2410.c
  [MTD] Initialize 'writesize'
  [MTD] NAND: ndfc fix address offset thinko
  [MTD] NAND: S3C2410 convert prinks to dev_*()s
  [MTD] NAND: Missing fixups
This commit is contained in:
Linus Torvalds 2006-06-27 19:13:56 -07:00
parent 73a0e405dc 6a93096195
commit 936813a880
34 changed files with 661 additions and 415 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/mtd/chips/cfi_cmdset_0001.c
View File

@ -357,6 +357,7 @@ struct mtd_info *cfi_cmdset_0001(struct map_info *map, int primary)
mtd->resume = cfi_intelext_resume;
mtd->flags = MTD_CAP_NORFLASH;
mtd->name = map->name;
mtd->writesize = 1;
mtd->reboot_notifier.notifier_call = cfi_intelext_reboot;

1
drivers/mtd/chips/jedec.c
View File

@ -256,6 +256,7 @@ static struct mtd_info *jedec_probe(struct map_info *map)
MTD->name = map->name;
MTD->type = MTD_NORFLASH;
MTD->flags = MTD_CAP_NORFLASH;
MTD->writesize = 1;
MTD->erasesize = SectorSize*(map->buswidth);
// printk("MTD->erasesize is %x\n",(unsigned int)MTD->erasesize);
MTD->size = priv->size;

3
drivers/mtd/chips/map_absent.c
View File

@ -64,7 +64,8 @@ static struct mtd_info *map_absent_probe(struct map_info *map)
mtd->write = map_absent_write;
mtd->sync = map_absent_sync;
mtd->flags = 0;
mtd->erasesize = PAGE_SIZE;
mtd->erasesize = PAGE_SIZE;
mtd->writesize = 1;
__module_get(THIS_MODULE);
return mtd;

1
drivers/mtd/chips/map_ram.c
View File

@ -71,6 +71,7 @@ static struct mtd_info *map_ram_probe(struct map_info *map)
mtd->write = mapram_write;
mtd->sync = mapram_nop;
mtd->flags = MTD_CAP_RAM;
mtd->writesize = 1;
mtd->erasesize = PAGE_SIZE;
while(mtd->size & (mtd->erasesize - 1))

1
drivers/mtd/chips/map_rom.c
View File

@ -47,6 +47,7 @@ static struct mtd_info *map_rom_probe(struct map_info *map)
mtd->sync = maprom_nop;
mtd->flags = MTD_CAP_ROM;
mtd->erasesize = map->size;
mtd->writesize = 1;
__module_get(THIS_MODULE);
return mtd;

1
drivers/mtd/devices/block2mtd.c
View File

@ -324,6 +324,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK;
dev->mtd.erasesize = erase_size;
dev->mtd.writesize = 1;
dev->mtd.type = MTD_RAM;
dev->mtd.flags = MTD_CAP_RAM;
dev->mtd.erase = block2mtd_erase;

1
drivers/mtd/devices/ms02-nv.c
View File

@ -225,6 +225,7 @@ static int __init ms02nv_init_one(ulong addr)
mtd->owner = THIS_MODULE;
mtd->read = ms02nv_read;
mtd->write = ms02nv_write;
mtd->writesize = 1;
ret = -EIO;
if (add_mtd_device(mtd)) {

1
drivers/mtd/devices/mtd_dataflash.c
View File

@ -478,6 +478,7 @@ add_dataflash(struct spi_device *spi, char *name,
device->name = (pdata && pdata->name) ? pdata->name : priv->name;
device->size = nr_pages * pagesize;
device->erasesize = pagesize;
device->writesize = pagesize;
device->owner = THIS_MODULE;
device->type = MTD_DATAFLASH;
device->flags = MTD_CAP_NORFLASH;

1
drivers/mtd/devices/phram.c
View File

@ -151,6 +151,7 @@ static int register_device(char *name, unsigned long start, unsigned long len)
new->mtd.owner = THIS_MODULE;
new->mtd.type = MTD_RAM;
new->mtd.erasesize = PAGE_SIZE;
new->mtd.writesize = 1;
ret = -EAGAIN;
if (add_mtd_device(&new->mtd)) {

3
drivers/mtd/devices/pmc551.c
View File

@ -778,7 +778,8 @@ static int __init init_pmc551(void)
mtd->type = MTD_RAM;
mtd->name = "PMC551 RAM board";
mtd->erasesize = 0x10000;
mtd->owner = THIS_MODULE;
mtd->writesize = 1;
mtd->owner = THIS_MODULE;
if (add_mtd_device(mtd)) {
printk(KERN_NOTICE "pmc551: Failed to register new device\n");

1
drivers/mtd/devices/slram.c
View File

@ -209,6 +209,7 @@ static int register_device(char *name, unsigned long start, unsigned long length
(*curmtd)->mtdinfo->owner = THIS_MODULE;
(*curmtd)->mtdinfo->type = MTD_RAM;
(*curmtd)->mtdinfo->erasesize = SLRAM_BLK_SZ;
(*curmtd)->mtdinfo->writesize = 1;
if (add_mtd_device((*curmtd)->mtdinfo)) {
E("slram: Failed to register new device\n");

2
drivers/mtd/maps/ixp2000.c
View File

@ -42,7 +42,6 @@ struct ixp2000_flash_info {
struct map_info map;
struct mtd_partition *partitions;
struct resource *res;
int nr_banks;
};
static inline unsigned long flash_bank_setup(struct map_info *map, unsigned long ofs)
@ -183,7 +182,6 @@ static int ixp2000_flash_probe(struct platform_device *dev)
*/
info->map.phys = NO_XIP;
info->nr_banks = ixp_data->nr_banks;
info->map.size = ixp_data->nr_banks * window_size;
info->map.bankwidth = 1;

2
drivers/mtd/maps/physmap.c
View File

@ -182,7 +182,7 @@ static struct physmap_flash_data physmap_flash_data = {
static struct resource physmap_flash_resource = {
.start = CONFIG_MTD_PHYSMAP_START,
.end = CONFIG_MTD_PHYSMAP_START + CONFIG_MTD_PHYSMAP_LEN,
.end = CONFIG_MTD_PHYSMAP_START + CONFIG_MTD_PHYSMAP_LEN - 1,
.flags = IORESOURCE_MEM,
};

2
drivers/mtd/mtdchar.c
View File

@ -78,7 +78,7 @@ static loff_t mtd_lseek (struct file *file, loff_t offset, int orig)
return -EINVAL;
}
if (offset >= 0 && offset < mtd->size)
if (offset >= 0 && offset <= mtd->size)
return file->f_pos = offset;
return -EINVAL;

16
drivers/mtd/nand/nand_base.c
View File

@ -1176,7 +1176,7 @@ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
status = chip->waitfunc(mtd, chip);
return status;
return status & NAND_STATUS_FAIL ? -EIO : 0;
}
/**
@ -1271,10 +1271,6 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd);
buf = nand_transfer_oob(chip, buf, ops);
readlen -= ops->ooblen;
if (!readlen)
break;
if (!(chip->options & NAND_NO_READRDY)) {
/*
* Apply delay or wait for ready/busy pin. Do this
@ -1288,6 +1284,10 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
nand_wait_ready(mtd);
}
readlen -= ops->ooblen;
if (!readlen)
break;
/* Increment page address */
realpage++;
@ -1610,13 +1610,13 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
if (!writelen)
return 0;
chipnr = (int)(to >> chip->chip_shift);
chip->select_chip(mtd, chipnr);
/* Check, if it is write protected */
if (nand_check_wp(mtd))
return -EIO;
chipnr = (int)(to >> chip->chip_shift);
chip->select_chip(mtd, chipnr);
realpage = (int)(to >> chip->page_shift);
page = realpage & chip->pagemask;
blockmask = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;

6
drivers/mtd/nand/ndfc.c
View File

@ -61,15 +61,15 @@ static void ndfc_select_chip(struct mtd_info *mtd, int chip)
static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *chip = mtd->priv;
struct ndfc_controller *ndfc = &ndfc_ctrl;
if (cmd == NAND_CMD_NONE)
return;
if (ctrl & NAND_CLE)
writel(cmd & 0xFF, chip->IO_ADDR_W + NDFC_CMD);
writel(cmd & 0xFF, ndfc->ndfcbase + NDFC_CMD);
else
writel(cmd & 0xFF, chip->IO_ADDR_W + NDFC_ALE);
writel(cmd & 0xFF, ndfc->ndfcbase + NDFC_ALE);
}
static int ndfc_ready(struct mtd_info *mtd)

164
drivers/mtd/nand/s3c2410.c
View File

@ -63,8 +63,6 @@
#include <asm/arch/regs-nand.h>
#include <asm/arch/nand.h>
#define PFX "s3c2410-nand: "
#ifdef CONFIG_MTD_NAND_S3C2410_HWECC
static int hardware_ecc = 1;
#else
@ -99,6 +97,12 @@ struct s3c2410_nand_mtd {
int scan_res;
};
enum s3c_cpu_type {
TYPE_S3C2410,
TYPE_S3C2412,
TYPE_S3C2440,
};
/* overview of the s3c2410 nand state */
struct s3c2410_nand_info {
@ -112,9 +116,11 @@ struct s3c2410_nand_info {
struct resource *area;
struct clk *clk;
void __iomem *regs;
void __iomem *sel_reg;
int sel_bit;
int mtd_count;
unsigned char is_s3c2440;
enum s3c_cpu_type cpu_type;
};
/* conversion functions */
@ -148,7 +154,7 @@ static inline int allow_clk_stop(struct s3c2410_nand_info *info)
#define NS_IN_KHZ 1000000
static int s3c2410_nand_calc_rate(int wanted, unsigned long clk, int max)
static int s3c_nand_calc_rate(int wanted, unsigned long clk, int max)
{
int result;
@ -172,53 +178,58 @@ static int s3c2410_nand_calc_rate(int wanted, unsigned long clk, int max)
/* controller setup */
static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, struct platform_device *pdev)
static int s3c2410_nand_inithw(struct s3c2410_nand_info *info,
struct platform_device *pdev)
{
struct s3c2410_platform_nand *plat = to_nand_plat(pdev);
unsigned long clkrate = clk_get_rate(info->clk);
int tacls_max = (info->cpu_type == TYPE_S3C2412) ? 8 : 4;
int tacls, twrph0, twrph1;
unsigned long cfg;
unsigned long cfg = 0;
/* calculate the timing information for the controller */
clkrate /= 1000; /* turn clock into kHz for ease of use */
if (plat != NULL) {
tacls = s3c2410_nand_calc_rate(plat->tacls, clkrate, 4);
twrph0 = s3c2410_nand_calc_rate(plat->twrph0, clkrate, 8);
twrph1 = s3c2410_nand_calc_rate(plat->twrph1, clkrate, 8);
tacls = s3c_nand_calc_rate(plat->tacls, clkrate, tacls_max);
twrph0 = s3c_nand_calc_rate(plat->twrph0, clkrate, 8);
twrph1 = s3c_nand_calc_rate(plat->twrph1, clkrate, 8);
} else {
/* default timings */
tacls = 4;
tacls = tacls_max;
twrph0 = 8;
twrph1 = 8;
}
if (tacls < 0 || twrph0 < 0 || twrph1 < 0) {
printk(KERN_ERR PFX "cannot get timings suitable for board\n");
dev_err(info->device, "cannot get suitable timings\n");
return -EINVAL;
}
printk(KERN_INFO PFX "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n",
dev_info(info->device, "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n",
tacls, to_ns(tacls, clkrate), twrph0, to_ns(twrph0, clkrate), twrph1, to_ns(twrph1, clkrate));
if (!info->is_s3c2440) {
switch (info->cpu_type) {
case TYPE_S3C2410:
cfg = S3C2410_NFCONF_EN;
cfg |= S3C2410_NFCONF_TACLS(tacls - 1);
cfg |= S3C2410_NFCONF_TWRPH0(twrph0 - 1);
cfg |= S3C2410_NFCONF_TWRPH1(twrph1 - 1);
} else {
break;
case TYPE_S3C2440:
case TYPE_S3C2412:
cfg = S3C2440_NFCONF_TACLS(tacls - 1);
cfg |= S3C2440_NFCONF_TWRPH0(twrph0 - 1);
cfg |= S3C2440_NFCONF_TWRPH1(twrph1 - 1);
/* enable the controller and de-assert nFCE */
writel(S3C2440_NFCONT_ENABLE | S3C2440_NFCONT_ENABLE,
info->regs + S3C2440_NFCONT);
writel(S3C2440_NFCONT_ENABLE, info->regs + S3C2440_NFCONT);
}
pr_debug(PFX "NF_CONF is 0x%lx\n", cfg);
dev_dbg(info->device, "NF_CONF is 0x%lx\n", cfg);
writel(cfg, info->regs + S3C2410_NFCONF);
return 0;
@ -231,26 +242,21 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip)
struct s3c2410_nand_info *info;
struct s3c2410_nand_mtd *nmtd;
struct nand_chip *this = mtd->priv;
void __iomem *reg;
unsigned long cur;
unsigned long bit;
nmtd = this->priv;
info = nmtd->info;
bit = (info->is_s3c2440) ? S3C2440_NFCONT_nFCE : S3C2410_NFCONF_nFCE;
reg = info->regs + ((info->is_s3c2440) ? S3C2440_NFCONT : S3C2410_NFCONF);
if (chip != -1 && allow_clk_stop(info))
clk_enable(info->clk);
cur = readl(reg);
cur = readl(info->sel_reg);
if (chip == -1) {
cur |= bit;
cur |= info->sel_bit;
} else {
if (nmtd->set != NULL && chip > nmtd->set->nr_chips) {
printk(KERN_ERR PFX "chip %d out of range\n", chip);
dev_err(info->device, "invalid chip %d\n", chip);
return;
}
@ -259,10 +265,10 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip)
(info->platform->select_chip) (nmtd->set, chip);
}
cur &= ~bit;
cur &= ~info->sel_bit;
}
writel(cur, reg);
writel(cur, info->sel_reg);
if (chip == -1 && allow_clk_stop(info))
clk_disable(info->clk);
@ -311,15 +317,25 @@ static void s3c2440_nand_hwcontrol(struct mtd_info *mtd, int cmd,
static int s3c2410_nand_devready(struct mtd_info *mtd)
{
struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd);
if (info->is_s3c2440)
return readb(info->regs + S3C2440_NFSTAT) & S3C2440_NFSTAT_READY;
return readb(info->regs + S3C2410_NFSTAT) & S3C2410_NFSTAT_BUSY;
}
static int s3c2440_nand_devready(struct mtd_info *mtd)
{
struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd);
return readb(info->regs + S3C2440_NFSTAT) & S3C2440_NFSTAT_READY;
}
static int s3c2412_nand_devready(struct mtd_info *mtd)
{
struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd);
return readb(info->regs + S3C2412_NFSTAT) & S3C2412_NFSTAT_READY;
}
/* ECC handling functions */
static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat,
u_char *read_ecc, u_char *calc_ecc)
{
pr_debug("s3c2410_nand_correct_data(%p,%p,%p,%p)\n", mtd, dat, read_ecc, calc_ecc);
@ -487,11 +503,8 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
struct s3c2410_nand_set *set)
{
struct nand_chip *chip = &nmtd->chip;
void __iomem *regs = info->regs;
chip->IO_ADDR_R = info->regs + S3C2410_NFDATA;
chip->IO_ADDR_W = info->regs + S3C2410_NFDATA;
chip->cmd_ctrl = s3c2410_nand_hwcontrol;
chip->dev_ready = s3c2410_nand_devready;
chip->write_buf = s3c2410_nand_write_buf;
chip->read_buf = s3c2410_nand_read_buf;
chip->select_chip = s3c2410_nand_select_chip;
@ -500,11 +513,37 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
chip->options = 0;
chip->controller = &info->controller;
if (info->is_s3c2440) {
chip->IO_ADDR_R = info->regs + S3C2440_NFDATA;
chip->IO_ADDR_W = info->regs + S3C2440_NFDATA;
chip->cmd_ctrl = s3c2440_nand_hwcontrol;
}
switch (info->cpu_type) {
case TYPE_S3C2410:
chip->IO_ADDR_W = regs + S3C2410_NFDATA;
info->sel_reg = regs + S3C2410_NFCONF;
info->sel_bit = S3C2410_NFCONF_nFCE;
chip->cmd_ctrl = s3c2410_nand_hwcontrol;
chip->dev_ready = s3c2410_nand_devready;
break;
case TYPE_S3C2440:
chip->IO_ADDR_W = regs + S3C2440_NFDATA;
info->sel_reg = regs + S3C2440_NFCONT;
info->sel_bit = S3C2440_NFCONT_nFCE;
chip->cmd_ctrl = s3c2440_nand_hwcontrol;
chip->dev_ready = s3c2440_nand_devready;
break;
case TYPE_S3C2412:
chip->IO_ADDR_W = regs + S3C2440_NFDATA;
info->sel_reg = regs + S3C2440_NFCONT;
info->sel_bit = S3C2412_NFCONT_nFCE0;
chip->cmd_ctrl = s3c2440_nand_hwcontrol;
chip->dev_ready = s3c2412_nand_devready;
if (readl(regs + S3C2410_NFCONF) & S3C2412_NFCONF_NANDBOOT)
dev_info(info->device, "System booted from NAND\n");
break;
}
chip->IO_ADDR_R = chip->IO_ADDR_W;
nmtd->info = info;
nmtd->mtd.priv = chip;
@ -512,17 +551,25 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
nmtd->set = set;
if (hardware_ecc) {
chip->ecc.correct = s3c2410_nand_correct_data;
chip->ecc.hwctl = s3c2410_nand_enable_hwecc;
chip->ecc.calculate = s3c2410_nand_calculate_ecc;
chip->ecc.correct = s3c2410_nand_correct_data;
chip->ecc.mode = NAND_ECC_HW;
chip->ecc.size = 512;
chip->ecc.bytes = 3;
chip->ecc.layout = &nand_hw_eccoob;
if (info->is_s3c2440) {
chip->ecc.hwctl = s3c2440_nand_enable_hwecc;
chip->ecc.calculate = s3c2440_nand_calculate_ecc;
switch (info->cpu_type) {
case TYPE_S3C2410:
chip->ecc.hwctl = s3c2410_nand_enable_hwecc;
chip->ecc.calculate = s3c2410_nand_calculate_ecc;
break;
case TYPE_S3C2412:
case TYPE_S3C2440:
chip->ecc.hwctl = s3c2440_nand_enable_hwecc;
chip->ecc.calculate = s3c2440_nand_calculate_ecc;
break;
}
} else {
chip->ecc.mode = NAND_ECC_SOFT;
@ -537,7 +584,8 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
* nand layer to look for devices
*/
static int s3c24xx_nand_probe(struct platform_device *pdev, int is_s3c2440)
static int s3c24xx_nand_probe(struct platform_device *pdev,
enum s3c_cpu_type cpu_type)
{
struct s3c2410_platform_nand *plat = to_nand_plat(pdev);
struct s3c2410_nand_info *info;
@ -592,7 +640,7 @@ static int s3c24xx_nand_probe(struct platform_device *pdev, int is_s3c2440)
info->device = &pdev->dev;
info->platform = plat;
info->regs = ioremap(res->start, size);
info->is_s3c2440 = is_s3c2440;
info->cpu_type = cpu_type;
if (info->regs == NULL) {
dev_err(&pdev->dev, "cannot reserve register region\n");
@ -699,12 +747,17 @@ static int s3c24xx_nand_resume(struct platform_device *dev)
static int s3c2410_nand_probe(struct platform_device *dev)
{
return s3c24xx_nand_probe(dev, 0);
return s3c24xx_nand_probe(dev, TYPE_S3C2410);
}
static int s3c2440_nand_probe(struct platform_device *dev)
{
return s3c24xx_nand_probe(dev, 1);
return s3c24xx_nand_probe(dev, TYPE_S3C2440);
}
static int s3c2412_nand_probe(struct platform_device *dev)
{
return s3c24xx_nand_probe(dev, TYPE_S3C2412);
}
static struct platform_driver s3c2410_nand_driver = {
@ -729,16 +782,29 @@ static struct platform_driver s3c2440_nand_driver = {
},
};
static struct platform_driver s3c2412_nand_driver = {
.probe = s3c2412_nand_probe,
.remove = s3c2410_nand_remove,
.suspend = s3c24xx_nand_suspend,
.resume = s3c24xx_nand_resume,
.driver = {
.name = "s3c2412-nand",
.owner = THIS_MODULE,
},
};
static int __init s3c2410_nand_init(void)
{
printk("S3C24XX NAND Driver, (c) 2004 Simtec Electronics\n");
platform_driver_register(&s3c2412_nand_driver);
platform_driver_register(&s3c2440_nand_driver);
return platform_driver_register(&s3c2410_nand_driver);
}
static void __exit s3c2410_nand_exit(void)
{
platform_driver_unregister(&s3c2412_nand_driver);
platform_driver_unregister(&s3c2440_nand_driver);
platform_driver_unregister(&s3c2410_nand_driver);
}

2
drivers/mtd/nand/ts7250.c
View File

@ -97,7 +97,7 @@ static void ts7250_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
unsigned long addr = TS72XX_NAND_CONTROL_VIRT_BASE;
unsigned char bits;
bits = (ctrl & NAND_CNE) << 2;
bits = (ctrl & NAND_NCE) << 2;
bits |= ctrl & NAND_CLE;
bits |= (ctrl & NAND_ALE) >> 2;

2
fs/Kconfig
View File

@ -1116,7 +1116,7 @@ config JFFS2_SUMMARY
config JFFS2_FS_XATTR
bool "JFFS2 XATTR support (EXPERIMENTAL)"
depends on JFFS2_FS && EXPERIMENTAL && !JFFS2_FS_WRITEBUFFER
depends on JFFS2_FS && EXPERIMENTAL
default n
help
Extended attributes are name:value pairs associated with inodes by

2
fs/jffs2/acl.c
View File

@ -267,6 +267,8 @@ static int jffs2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
}
rc = do_jffs2_setxattr(inode, xprefix, "", value, size, 0);
if (!value && rc == -ENODATA)
rc = 0;
if (value)
kfree(value);
if (!rc) {

19
fs/jffs2/erase.c
View File

@ -225,7 +225,6 @@ static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,
at the end of the linked list. Stash it and continue
from the beginning of the list */
ic = (struct jffs2_inode_cache *)(*prev);
BUG_ON(ic->class != RAWNODE_CLASS_INODE_CACHE);
prev = &ic->nodes;
continue;
}
@ -249,7 +248,8 @@ static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,
/* PARANOIA */
if (!ic) {
printk(KERN_WARNING "inode_cache not found in remove_node_refs()!!\n");
JFFS2_WARNING("inode_cache/xattr_datum/xattr_ref"
" not found in remove_node_refs()!!\n");
return;
}
@ -274,8 +274,19 @@ static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,
printk("\n");
});
if (ic->nodes == (void *)ic && ic->nlink == 0)
jffs2_del_ino_cache(c, ic);
switch (ic->class) {
#ifdef CONFIG_JFFS2_FS_XATTR
case RAWNODE_CLASS_XATTR_DATUM:
jffs2_release_xattr_datum(c, (struct jffs2_xattr_datum *)ic);
break;
case RAWNODE_CLASS_XATTR_REF:
jffs2_release_xattr_ref(c, (struct jffs2_xattr_ref *)ic);
break;
#endif
default:
if (ic->nodes == (void *)ic && ic->nlink == 0)
jffs2_del_ino_cache(c, ic);
}
}
void jffs2_free_jeb_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)

2
fs/jffs2/fs.c
View File

@ -227,8 +227,6 @@ void jffs2_clear_inode (struct inode *inode)
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
D1(printk(KERN_DEBUG "jffs2_clear_inode(): ino #%lu mode %o\n", inode->i_ino, inode->i_mode));
jffs2_xattr_delete_inode(c, f->inocache);
jffs2_do_clear_inode(c, f);
}

6
fs/jffs2/gc.c
View File

@ -165,6 +165,7 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
D1(printk(KERN_DEBUG "Skipping check of ino #%d with nlink zero\n",
ic->ino));
spin_unlock(&c->inocache_lock);
jffs2_xattr_delete_inode(c, ic);
continue;
}
switch(ic->state) {
@ -275,13 +276,12 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
* We can decide whether this node is inode or xattr by ic->class. */
if (ic->class == RAWNODE_CLASS_XATTR_DATUM
|| ic->class == RAWNODE_CLASS_XATTR_REF) {
BUG_ON(raw->next_in_ino != (void *)ic);
spin_unlock(&c->erase_completion_lock);
if (ic->class == RAWNODE_CLASS_XATTR_DATUM) {
ret = jffs2_garbage_collect_xattr_datum(c, (struct jffs2_xattr_datum *)ic);
ret = jffs2_garbage_collect_xattr_datum(c, (struct jffs2_xattr_datum *)ic, raw);
} else {
ret = jffs2_garbage_collect_xattr_ref(c, (struct jffs2_xattr_ref *)ic);
ret = jffs2_garbage_collect_xattr_ref(c, (struct jffs2_xattr_ref *)ic, raw);
}
goto release_sem;
}

3
fs/jffs2/jffs2_fs_sb.h
View File

@ -119,8 +119,11 @@ struct jffs2_sb_info {
#ifdef CONFIG_JFFS2_FS_XATTR
#define XATTRINDEX_HASHSIZE (57)
uint32_t highest_xid;
uint32_t highest_xseqno;
struct list_head xattrindex[XATTRINDEX_HASHSIZE];
struct list_head xattr_unchecked;
struct list_head xattr_dead_list;
struct jffs2_xattr_ref *xref_dead_list;
struct jffs2_xattr_ref *xref_temp;
struct rw_semaphore xattr_sem;
uint32_t xdatum_mem_usage;

2
fs/jffs2/malloc.c
View File

@ -291,6 +291,7 @@ struct jffs2_xattr_datum *jffs2_alloc_xattr_datum(void)
memset(xd, 0, sizeof(struct jffs2_xattr_datum));
xd->class = RAWNODE_CLASS_XATTR_DATUM;
xd->node = (void *)xd;
INIT_LIST_HEAD(&xd->xindex);
return xd;
}
@ -309,6 +310,7 @@ struct jffs2_xattr_ref *jffs2_alloc_xattr_ref(void)
memset(ref, 0, sizeof(struct jffs2_xattr_ref));
ref->class = RAWNODE_CLASS_XATTR_REF;
ref->node = (void *)ref;
return ref;
}

3
fs/jffs2/nodelist.c
View File

@ -906,6 +906,9 @@ void jffs2_del_ino_cache(struct jffs2_sb_info *c, struct jffs2_inode_cache *old)
{
struct jffs2_inode_cache **prev;
#ifdef CONFIG_JFFS2_FS_XATTR
BUG_ON(old->xref);
#endif
dbg_inocache("del %p (ino #%u)\n", old, old->ino);
spin_lock(&c->inocache_lock);

21
fs/jffs2/nodemgmt.c
View File

@ -683,19 +683,26 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
spin_lock(&c->erase_completion_lock);
ic = jffs2_raw_ref_to_ic(ref);
/* It seems we should never call jffs2_mark_node_obsolete() for
XATTR nodes.... yet. Make sure we notice if/when we change
that :) */
BUG_ON(ic->class != RAWNODE_CLASS_INODE_CACHE);
for (p = &ic->nodes; (*p) != ref; p = &((*p)->next_in_ino))
;
*p = ref->next_in_ino;
ref->next_in_ino = NULL;
if (ic->nodes == (void *)ic && ic->nlink == 0)
jffs2_del_ino_cache(c, ic);
switch (ic->class) {
#ifdef CONFIG_JFFS2_FS_XATTR
case RAWNODE_CLASS_XATTR_DATUM:
jffs2_release_xattr_datum(c, (struct jffs2_xattr_datum *)ic);
break;
case RAWNODE_CLASS_XATTR_REF:
jffs2_release_xattr_ref(c, (struct jffs2_xattr_ref *)ic);
break;
#endif
default:
if (ic->nodes == (void *)ic && ic->nlink == 0)
jffs2_del_ino_cache(c, ic);
break;
}
spin_unlock(&c->erase_completion_lock);
}

1
fs/jffs2/readinode.c
View File

@ -968,6 +968,7 @@ void jffs2_do_clear_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f)
struct jffs2_full_dirent *fd, *fds;
int deleted;
jffs2_xattr_delete_inode(c, f->inocache);
down(&f->sem);
deleted = f->inocache && !f->inocache->nlink;

55
fs/jffs2/scan.c
View File

@ -317,20 +317,23 @@ static int jffs2_scan_xattr_node(struct jffs2_sb_info *c, struct jffs2_erasebloc
struct jffs2_summary *s)
{
struct jffs2_xattr_datum *xd;
uint32_t totlen, crc;
uint32_t xid, version, totlen, crc;
int err;
crc = crc32(0, rx, sizeof(struct jffs2_raw_xattr) - 4);
if (crc != je32_to_cpu(rx->node_crc)) {
if (je32_to_cpu(rx->node_crc) != 0xffffffff)
JFFS2_WARNING("node CRC failed at %#08x, read=%#08x, calc=%#08x\n",
ofs, je32_to_cpu(rx->node_crc), crc);
JFFS2_WARNING("node CRC failed at %#08x, read=%#08x, calc=%#08x\n",
ofs, je32_to_cpu(rx->node_crc), crc);
if ((err = jffs2_scan_dirty_space(c, jeb, je32_to_cpu(rx->totlen))))
return err;
return 0;
}
totlen = PAD(sizeof(*rx) + rx->name_len + 1 + je16_to_cpu(rx->value_len));
xid = je32_to_cpu(rx->xid);
version = je32_to_cpu(rx->version);
totlen = PAD(sizeof(struct jffs2_raw_xattr)
+ rx->name_len + 1 + je16_to_cpu(rx->value_len));
if (totlen != je32_to_cpu(rx->totlen)) {
JFFS2_WARNING("node length mismatch at %#08x, read=%u, calc=%u\n",
ofs, je32_to_cpu(rx->totlen), totlen);
@ -339,22 +342,24 @@ static int jffs2_scan_xattr_node(struct jffs2_sb_info *c, struct jffs2_erasebloc
return 0;
}
xd = jffs2_setup_xattr_datum(c, je32_to_cpu(rx->xid), je32_to_cpu(rx->version));
if (IS_ERR(xd)) {
if (PTR_ERR(xd) == -EEXIST) {
if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(rx->totlen)))))
return err;
return 0;
}
xd = jffs2_setup_xattr_datum(c, xid, version);
if (IS_ERR(xd))
return PTR_ERR(xd);
}
xd->xprefix = rx->xprefix;
xd->name_len = rx->name_len;
xd->value_len = je16_to_cpu(rx->value_len);
xd->data_crc = je32_to_cpu(rx->data_crc);
xd->node = jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, totlen, NULL);
/* FIXME */ xd->node->next_in_ino = (void *)xd;
if (xd->version > version) {
struct jffs2_raw_node_ref *raw
= jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, totlen, NULL);
raw->next_in_ino = xd->node->next_in_ino;
xd->node->next_in_ino = raw;
} else {
xd->version = version;
xd->xprefix = rx->xprefix;
xd->name_len = rx->name_len;
xd->value_len = je16_to_cpu(rx->value_len);
xd->data_crc = je32_to_cpu(rx->data_crc);
jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, totlen, (void *)xd);
}
if (jffs2_sum_active())
jffs2_sum_add_xattr_mem(s, rx, ofs - jeb->offset);
@ -373,9 +378,8 @@ static int jffs2_scan_xref_node(struct jffs2_sb_info *c, struct jffs2_eraseblock
crc = crc32(0, rr, sizeof(*rr) - 4);
if (crc != je32_to_cpu(rr->node_crc)) {
if (je32_to_cpu(rr->node_crc) != 0xffffffff)
JFFS2_WARNING("node CRC failed at %#08x, read=%#08x, calc=%#08x\n",
ofs, je32_to_cpu(rr->node_crc), crc);
JFFS2_WARNING("node CRC failed at %#08x, read=%#08x, calc=%#08x\n",
ofs, je32_to_cpu(rr->node_crc), crc);
if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(rr->totlen)))))
return err;
return 0;
@ -395,6 +399,7 @@ static int jffs2_scan_xref_node(struct jffs2_sb_info *c, struct jffs2_eraseblock
return -ENOMEM;
/* BEFORE jffs2_build_xattr_subsystem() called,
* and AFTER xattr_ref is marked as a dead xref,
* ref->xid is used to store 32bit xid, xd is not used
* ref->ino is used to store 32bit inode-number, ic is not used
* Thoes variables are declared as union, thus using those
@ -404,11 +409,13 @@ static int jffs2_scan_xref_node(struct jffs2_sb_info *c, struct jffs2_eraseblock
*/
ref->ino = je32_to_cpu(rr->ino);
ref->xid = je32_to_cpu(rr->xid);
ref->xseqno = je32_to_cpu(rr->xseqno);
if (ref->xseqno > c->highest_xseqno)
c->highest_xseqno = (ref->xseqno & ~XREF_DELETE_MARKER);
ref->next = c->xref_temp;
c->xref_temp = ref;
ref->node = jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, PAD(je32_to_cpu(rr->totlen)), NULL);
/* FIXME */ ref->node->next_in_ino = (void *)ref;
jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, PAD(je32_to_cpu(rr->totlen)), (void *)ref);
if (jffs2_sum_active())
jffs2_sum_add_xref_mem(s, rr, ofs - jeb->offset);

41
fs/jffs2/summary.c
View File

@ -5,7 +5,7 @@
* Zoltan Sogor <weth@inf.u-szeged.hu>,
* Patrik Kluba <pajko@halom.u-szeged.hu>,
* University of Szeged, Hungary
* 2005 KaiGai Kohei <kaigai@ak.jp.nec.com>
* 2006 KaiGai Kohei <kaigai@ak.jp.nec.com>
*
* For licensing information, see the file 'LICENCE' in this directory.
*
@ -310,8 +310,6 @@ int jffs2_sum_add_kvec(struct jffs2_sb_info *c, const struct kvec *invecs,
#ifdef CONFIG_JFFS2_FS_XATTR
case JFFS2_NODETYPE_XATTR: {
struct jffs2_sum_xattr_mem *temp;
if (je32_to_cpu(node->x.version) == 0xffffffff)
return 0;
temp = kmalloc(sizeof(struct jffs2_sum_xattr_mem), GFP_KERNEL);
if (!temp)
goto no_mem;
@ -327,10 +325,6 @@ int jffs2_sum_add_kvec(struct jffs2_sb_info *c, const struct kvec *invecs,
}
case JFFS2_NODETYPE_XREF: {
struct jffs2_sum_xref_mem *temp;
if (je32_to_cpu(node->r.ino) == 0xffffffff
&& je32_to_cpu(node->r.xid) == 0xffffffff)
return 0;
temp = kmalloc(sizeof(struct jffs2_sum_xref_mem), GFP_KERNEL);
if (!temp)
goto no_mem;
@ -483,22 +477,20 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras
xd = jffs2_setup_xattr_datum(c, je32_to_cpu(spx->xid),
je32_to_cpu(spx->version));
if (IS_ERR(xd)) {
if (PTR_ERR(xd) == -EEXIST) {
/* a newer version of xd exists */
if ((err = jffs2_scan_dirty_space(c, jeb, je32_to_cpu(spx->totlen))))
return err;
sp += JFFS2_SUMMARY_XATTR_SIZE;
break;
}
JFFS2_NOTICE("allocation of xattr_datum failed\n");
if (IS_ERR(xd))
return PTR_ERR(xd);
if (xd->version > je32_to_cpu(spx->version)) {
/* node is not the newest one */
struct jffs2_raw_node_ref *raw
= sum_link_node_ref(c, jeb, je32_to_cpu(spx->offset) | REF_UNCHECKED,
PAD(je32_to_cpu(spx->totlen)), NULL);
raw->next_in_ino = xd->node->next_in_ino;
xd->node->next_in_ino = raw;
} else {
xd->version = je32_to_cpu(spx->version);
sum_link_node_ref(c, jeb, je32_to_cpu(spx->offset) | REF_UNCHECKED,
PAD(je32_to_cpu(spx->totlen)), (void *)xd);
}
xd->node = sum_link_node_ref(c, jeb, je32_to_cpu(spx->offset) | REF_UNCHECKED,
PAD(je32_to_cpu(spx->totlen)), NULL);
/* FIXME */ xd->node->next_in_ino = (void *)xd;
*pseudo_random += je32_to_cpu(spx->xid);
sp += JFFS2_SUMMARY_XATTR_SIZE;
@ -519,14 +511,11 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras
JFFS2_NOTICE("allocation of xattr_datum failed\n");
return -ENOMEM;
}
ref->ino = 0xfffffffe;
ref->xid = 0xfffffffd;
ref->next = c->xref_temp;
c->xref_temp = ref;
ref->node = sum_link_node_ref(c, jeb, je32_to_cpu(spr->offset) | REF_UNCHECKED,
PAD(sizeof(struct jffs2_raw_xref)), NULL);
/* FIXME */ ref->node->next_in_ino = (void *)ref;
sum_link_node_ref(c, jeb, je32_to_cpu(spr->offset) | REF_UNCHECKED,
PAD(sizeof(struct jffs2_raw_xref)), (void *)ref);
*pseudo_random += ref->node->flash_offset;
sp += JFFS2_SUMMARY_XREF_SIZE;

640
fs/jffs2/xattr.c
View File

File diff suppressed because it is too large Load Diff

21
fs/jffs2/xattr.h
View File

@ -16,6 +16,8 @@
#define JFFS2_XFLAGS_HOT (0x01) /* This datum is HOT */
#define JFFS2_XFLAGS_BIND (0x02) /* This datum is not reclaimed */
#define JFFS2_XFLAGS_DEAD (0x40) /* This datum is already dead */
#define JFFS2_XFLAGS_INVALID (0x80) /* This datum contains crc error */
struct jffs2_xattr_datum
{
@ -23,10 +25,10 @@ struct jffs2_xattr_datum
struct jffs2_raw_node_ref *node;
uint8_t class;
uint8_t flags;
uint16_t xprefix; /* see JFFS2_XATTR_PREFIX_* */
uint16_t xprefix; /* see JFFS2_XATTR_PREFIX_* */
struct list_head xindex; /* chained from c->xattrindex[n] */
uint32_t refcnt; /* # of xattr_ref refers this */
atomic_t refcnt; /* # of xattr_ref refers this */
uint32_t xid;
uint32_t version;
@ -47,6 +49,7 @@ struct jffs2_xattr_ref
uint8_t flags; /* Currently unused */
u16 unused;
uint32_t xseqno;
union {
struct jffs2_inode_cache *ic; /* reference to jffs2_inode_cache */
uint32_t ino; /* only used in scanning/building */
@ -58,6 +61,12 @@ struct jffs2_xattr_ref
struct jffs2_xattr_ref *next; /* chained from ic->xref_list */
};
#define XREF_DELETE_MARKER (0x00000001)
static inline int is_xattr_ref_dead(struct jffs2_xattr_ref *ref)
{
return ((ref->xseqno & XREF_DELETE_MARKER) != 0);
}
#ifdef CONFIG_JFFS2_FS_XATTR
extern void jffs2_init_xattr_subsystem(struct jffs2_sb_info *c);
@ -70,9 +79,13 @@ extern struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c
extern void jffs2_xattr_delete_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic);
extern void jffs2_xattr_free_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic);
extern int jffs2_garbage_collect_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd);
extern int jffs2_garbage_collect_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref);
extern int jffs2_garbage_collect_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd,
struct jffs2_raw_node_ref *raw);
extern int jffs2_garbage_collect_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref,
struct jffs2_raw_node_ref *raw);
extern int jffs2_verify_xattr(struct jffs2_sb_info *c);
extern void jffs2_release_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd);
extern void jffs2_release_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref);
extern int do_jffs2_getxattr(struct inode *inode, int xprefix, const char *xname,
char *buffer, size_t size);

48
include/asm-arm/arch-s3c2410/regs-nand.h
View File

@ -39,10 +39,19 @@
#define S3C2440_NFESTAT1 S3C2410_NFREG(0x28)
#define S3C2440_NFMECC0 S3C2410_NFREG(0x2C)
#define S3C2440_NFMECC1 S3C2410_NFREG(0x30)
#define S3C2440_NFSECC S3C2410_NFREG(0x34)
#define S3C2440_NFSECC S3C24E10_NFREG(0x34)
#define S3C2440_NFSBLK S3C2410_NFREG(0x38)
#define S3C2440_NFEBLK S3C2410_NFREG(0x3C)
#define S3C2412_NFSBLK S3C2410_NFREG(0x20)
#define S3C2412_NFEBLK S3C2410_NFREG(0x24)
#define S3C2412_NFSTAT S3C2410_NFREG(0x28)
#define S3C2412_NFMECC_ERR0 S3C2410_NFREG(0x2C)
#define S3C2412_NFMECC_ERR1 S3C2410_NFREG(0x30)
#define S3C2412_NFMECC0 S3C2410_NFREG(0x34)
#define S3C2412_NFMECC1 S3C2410_NFREG(0x38)
#define S3C2412_NFSECC S3C2410_NFREG(0x3C)
#define S3C2410_NFCONF_EN (1<<15)
#define S3C2410_NFCONF_512BYTE (1<<14)
#define S3C2410_NFCONF_4STEP (1<<13)
@ -77,5 +86,42 @@
#define S3C2440_NFSTAT_RnB_CHANGE (1<<2)
#define S3C2440_NFSTAT_ILLEGAL_ACCESS (1<<3)
#define S3C2412_NFCONF_NANDBOOT (1<<31)
#define S3C2412_NFCONF_ECCCLKCON (1<<30)
#define S3C2412_NFCONF_ECC_MLC (1<<24)
#define S3C2412_NFCONF_TACLS_MASK (7<<12) /* 1 extra bit of Tacls */
#define S3C2412_NFCONT_ECC4_DIRWR (1<<18)
#define S3C2412_NFCONT_LOCKTIGHT (1<<17)
#define S3C2412_NFCONT_SOFTLOCK (1<<16)
#define S3C2412_NFCONT_ECC4_ENCINT (1<<13)
#define S3C2412_NFCONT_ECC4_DECINT (1<<12)
#define S3C2412_NFCONT_MAIN_ECC_LOCK (1<<7)
#define S3C2412_NFCONT_INIT_MAIN_ECC (1<<5)
#define S3C2412_NFCONT_nFCE1 (1<<2)
#define S3C2412_NFCONT_nFCE0 (1<<1)
#define S3C2412_NFSTAT_ECC_ENCDONE (1<<7)
#define S3C2412_NFSTAT_ECC_DECDONE (1<<6)
#define S3C2412_NFSTAT_ILLEGAL_ACCESS (1<<5)
#define S3C2412_NFSTAT_RnB_CHANGE (1<<4)
#define S3C2412_NFSTAT_nFCE1 (1<<3)
#define S3C2412_NFSTAT_nFCE0 (1<<2)
#define S3C2412_NFSTAT_Res1 (1<<1)
#define S3C2412_NFSTAT_READY (1<<0)
#define S3C2412_NFECCERR_SERRDATA(x) (((x) >> 21) & 0xf)
#define S3C2412_NFECCERR_SERRBIT(x) (((x) >> 18) & 0x7)
#define S3C2412_NFECCERR_MERRDATA(x) (((x) >> 7) & 0x3ff)
#define S3C2412_NFECCERR_MERRBIT(x) (((x) >> 4) & 0x7)
#define S3C2412_NFECCERR_SPARE_ERR(x) (((x) >> 2) & 0x3)
#define S3C2412_NFECCERR_MAIN_ERR(x) (((x) >> 2) & 0x3)
#define S3C2412_NFECCERR_NONE (0)
#define S3C2412_NFECCERR_1BIT (1)
#define S3C2412_NFECCERR_MULTIBIT (2)
#define S3C2412_NFECCERR_ECCAREA (3)
#endif /* __ASM_ARM_REGS_NAND */

1
include/linux/jffs2.h
View File

@ -186,6 +186,7 @@ struct jffs2_raw_xref
jint32_t hdr_crc;
jint32_t ino; /* inode number */
jint32_t xid; /* XATTR identifier number */
jint32_t xseqno; /* xref sequencial number */
jint32_t node_crc;
} __attribute__((packed));