diff options
34 files changed, 657 insertions, 411 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index 0d435814aaa1..39edb8250fbc 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -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; diff --git a/drivers/mtd/chips/jedec.c b/drivers/mtd/chips/jedec.c index c40b48dabed3..2c3f019197c1 100644 --- a/drivers/mtd/chips/jedec.c +++ b/drivers/mtd/chips/jedec.c @@ -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; diff --git a/drivers/mtd/chips/map_absent.c b/drivers/mtd/chips/map_absent.c index a611de9b1515..ac01a949b687 100644 --- a/drivers/mtd/chips/map_absent.c +++ b/drivers/mtd/chips/map_absent.c @@ -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; diff --git a/drivers/mtd/chips/map_ram.c b/drivers/mtd/chips/map_ram.c index 763925747db6..3a66680abfd0 100644 --- a/drivers/mtd/chips/map_ram.c +++ b/drivers/mtd/chips/map_ram.c @@ -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)) diff --git a/drivers/mtd/chips/map_rom.c b/drivers/mtd/chips/map_rom.c index bc6ee9ef8a31..1b328b1378fd 100644 --- a/drivers/mtd/chips/map_rom.c +++ b/drivers/mtd/chips/map_rom.c @@ -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; diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 0d98c223c5fc..be3f1c136d02 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -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; diff --git a/drivers/mtd/devices/ms02-nv.c b/drivers/mtd/devices/ms02-nv.c index 4ab7670770e4..08dfb899b272 100644 --- a/drivers/mtd/devices/ms02-nv.c +++ b/drivers/mtd/devices/ms02-nv.c @@ -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)) { diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index a19480d07888..04271d02b6b6 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -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; diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index e09e416667d3..6c7337f9ebbb 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -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)) { diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index 666cce1bf60c..f620d74f1004 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -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"); diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c index b3f665e3c38b..542a0c009006 100644 --- a/drivers/mtd/devices/slram.c +++ b/drivers/mtd/devices/slram.c @@ -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"); diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c index 2c9cc7f37e92..c26488a1793a 100644 --- a/drivers/mtd/maps/ixp2000.c +++ b/drivers/mtd/maps/ixp2000.c @@ -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; diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 433c3cac3ca9..d6301f08906d 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -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, }; diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index aa18d45b264b..9a4b59d92525 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -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; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 27083ed0a017..80a76654d963 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -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; diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index fe8d38514ba6..e5bd88f2d560 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -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) diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 2c262fe03d8a..ff5cef24d5bb 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -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); } diff --git a/drivers/mtd/nand/ts7250.c b/drivers/mtd/nand/ts7250.c index a0b4b1edcb0d..f40081069ab2 100644 --- a/drivers/mtd/nand/ts7250.c +++ b/drivers/mtd/nand/ts7250.c @@ -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; diff --git a/fs/Kconfig b/fs/Kconfig index 00aa3d5c5a83..6dc8cfd6d80c 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -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 diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c index 320dd48b834e..9c2077e7e081 100644 --- a/fs/jffs2/acl.c +++ b/fs/jffs2/acl.c @@ -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) { diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index b8886f048eaa..ad0121088dde 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -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) diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 2900ec3ec3af..97caa77d60cf 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -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); } diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c index 477c526d638b..daff3341ff92 100644 --- a/fs/jffs2/gc.c +++ b/fs/jffs2/gc.c @@ -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; } diff --git a/fs/jffs2/jffs2_fs_sb.h b/fs/jffs2/jffs2_fs_sb.h index 935fec1b1201..b98594992eed 100644 --- a/fs/jffs2/jffs2_fs_sb.h +++ b/fs/jffs2/jffs2_fs_sb.h @@ -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; diff --git a/fs/jffs2/malloc.c b/fs/jffs2/malloc.c index 4889d0700c0e..8310c95478e9 100644 --- a/fs/jffs2/malloc.c +++ b/fs/jffs2/malloc.c @@ -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; } diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c index 927dfe42ba76..7675b33396c7 100644 --- a/fs/jffs2/nodelist.c +++ b/fs/jffs2/nodelist.c @@ -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); diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index ac0c350ed7d7..d88376992ed9 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -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); } diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c index 5fec012b02ed..cc1899268c43 100644 --- a/fs/jffs2/readinode.c +++ b/fs/jffs2/readinode.c @@ -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; diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c index 61618080b86f..2bfdc33752d3 100644 --- a/fs/jffs2/scan.c +++ b/fs/jffs2/scan.c @@ -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); diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c index be1acc3dad97..c19bd476e8ec 100644 --- a/fs/jffs2/summary.c +++ b/fs/jffs2/summary.c @@ -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; diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c index 2d82e250be34..18e66dbf23b4 100644 --- a/fs/jffs2/xattr.c +++ b/fs/jffs2/xattr.c @@ -23,18 +23,15 @@ * xattr_datum_hashkey(xprefix, xname, xvalue, xsize) * is used to calcurate xdatum hashkey. The reminder of hashkey into XATTRINDEX_HASHSIZE is * the index of the xattr name/value pair cache (c->xattrindex). + * is_xattr_datum_unchecked(c, xd) + * returns 1, if xdatum contains any unchecked raw nodes. if all raw nodes are not + * unchecked, it returns 0. * unload_xattr_datum(c, xd) * is used to release xattr name/value pair and detach from c->xattrindex. * reclaim_xattr_datum(c) * is used to reclaim xattr name/value pairs on the xattr name/value pair cache when * memory usage by cache is over c->xdatum_mem_threshold. Currentry, this threshold * is hard coded as 32KiB. - * delete_xattr_datum_node(c, xd) - * is used to delete a jffs2 node is dominated by xdatum. When EBS(Erase Block Summary) is - * enabled, it overwrites the obsolete node by myself. - * delete_xattr_datum(c, xd) - * is used to delete jffs2_xattr_datum object. It must be called with 0-value of reference - * counter. (It means how many jffs2_xattr_ref object refers this xdatum.) * do_verify_xattr_datum(c, xd) * is used to load the xdatum informations without name/value pair from the medium. * It's necessary once, because those informations are not collected during mounting @@ -53,8 +50,10 @@ * is used to write xdatum to medium. xd->version will be incremented. * create_xattr_datum(c, xprefix, xname, xvalue, xsize) * is used to create new xdatum and write to medium. + * delete_xattr_datum(c, xd) + * is used to delete a xdatum. It marks xd JFFS2_XFLAGS_DEAD, and allows + * GC to reclaim those physical nodes. * -------------------------------------------------- */ - static uint32_t xattr_datum_hashkey(int xprefix, const char *xname, const char *xvalue, int xsize) { int name_len = strlen(xname); @@ -62,6 +61,22 @@ static uint32_t xattr_datum_hashkey(int xprefix, const char *xname, const char * return crc32(xprefix, xname, name_len) ^ crc32(xprefix, xvalue, xsize); } +static int is_xattr_datum_unchecked(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) +{ + struct jffs2_raw_node_ref *raw; + int rc = 0; + + spin_lock(&c->erase_completion_lock); + for (raw=xd->node; raw != (void *)xd; raw=raw->next_in_ino) { + if (ref_flags(raw) == REF_UNCHECKED) { + rc = 1; + break; + } + } + spin_unlock(&c->erase_completion_lock); + return rc; +} + static void unload_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) { /* must be called under down_write(xattr_sem) */ @@ -107,77 +122,33 @@ static void reclaim_xattr_datum(struct jffs2_sb_info *c) before, c->xdatum_mem_usage, before - c->xdatum_mem_usage); } -static void delete_xattr_datum_node(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) -{ - /* must be called under down_write(xattr_sem) */ - struct jffs2_raw_xattr rx; - size_t length; - int rc; - - if (!xd->node) { - JFFS2_WARNING("xdatum (xid=%u) is removed twice.\n", xd->xid); - return; - } - if (jffs2_sum_active()) { - memset(&rx, 0xff, sizeof(struct jffs2_raw_xattr)); - rc = jffs2_flash_read(c, ref_offset(xd->node), - sizeof(struct jffs2_unknown_node), - &length, (char *)&rx); - if (rc || length != sizeof(struct jffs2_unknown_node)) { - JFFS2_ERROR("jffs2_flash_read()=%d, req=%zu, read=%zu at %#08x\n", - rc, sizeof(struct jffs2_unknown_node), - length, ref_offset(xd->node)); - } - rc = jffs2_flash_write(c, ref_offset(xd->node), sizeof(rx), - &length, (char *)&rx); - if (rc || length != sizeof(struct jffs2_raw_xattr)) { - JFFS2_ERROR("jffs2_flash_write()=%d, req=%zu, wrote=%zu ar %#08x\n", - rc, sizeof(rx), length, ref_offset(xd->node)); - } - } - spin_lock(&c->erase_completion_lock); - xd->node->next_in_ino = NULL; - spin_unlock(&c->erase_completion_lock); - jffs2_mark_node_obsolete(c, xd->node); - xd->node = NULL; -} - -static void delete_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) -{ - /* must be called under down_write(xattr_sem) */ - BUG_ON(xd->refcnt); - - unload_xattr_datum(c, xd); - if (xd->node) { - delete_xattr_datum_node(c, xd); - xd->node = NULL; - } - jffs2_free_xattr_datum(xd); -} - static int do_verify_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) { /* must be called under down_write(xattr_sem) */ struct jffs2_eraseblock *jeb; + struct jffs2_raw_node_ref *raw; struct jffs2_raw_xattr rx; size_t readlen; - uint32_t crc, totlen; + uint32_t crc, offset, totlen; int rc; - BUG_ON(!xd->node); - BUG_ON(ref_flags(xd->node) != REF_UNCHECKED); + spin_lock(&c->erase_completion_lock); + offset = ref_offset(xd->node); + if (ref_flags(xd->node) == REF_PRISTINE) + goto complete; + spin_unlock(&c->erase_completion_lock); - rc = jffs2_flash_read(c, ref_offset(xd->node), sizeof(rx), &readlen, (char *)&rx); + rc = jffs2_flash_read(c, offset, sizeof(rx), &readlen, (char *)&rx); if (rc || readlen != sizeof(rx)) { JFFS2_WARNING("jffs2_flash_read()=%d, req=%zu, read=%zu at %#08x\n", - rc, sizeof(rx), readlen, ref_offset(xd->node)); + rc, sizeof(rx), readlen, offset); return rc ? rc : -EIO; } crc = crc32(0, &rx, sizeof(rx) - 4); if (crc != je32_to_cpu(rx.node_crc)) { - if (je32_to_cpu(rx.node_crc) != 0xffffffff) - JFFS2_ERROR("node CRC failed at %#08x, read=%#08x, calc=%#08x\n", - ref_offset(xd->node), je32_to_cpu(rx.hdr_crc), crc); + JFFS2_ERROR("node CRC failed at %#08x, read=%#08x, calc=%#08x\n", + offset, je32_to_cpu(rx.hdr_crc), crc); + xd->flags |= JFFS2_XFLAGS_INVALID; return EIO; } totlen = PAD(sizeof(rx) + rx.name_len + 1 + je16_to_cpu(rx.value_len)); @@ -188,11 +159,12 @@ static int do_verify_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_dat || je32_to_cpu(rx.version) != xd->version) { JFFS2_ERROR("inconsistent xdatum at %#08x, magic=%#04x/%#04x, " "nodetype=%#04x/%#04x, totlen=%u/%u, xid=%u/%u, version=%u/%u\n", - ref_offset(xd->node), je16_to_cpu(rx.magic), JFFS2_MAGIC_BITMASK, + offset, je16_to_cpu(rx.magic), JFFS2_MAGIC_BITMASK, je16_to_cpu(rx.nodetype), JFFS2_NODETYPE_XATTR, je32_to_cpu(rx.totlen), totlen, je32_to_cpu(rx.xid), xd->xid, je32_to_cpu(rx.version), xd->version); + xd->flags |= JFFS2_XFLAGS_INVALID; return EIO; } xd->xprefix = rx.xprefix; @@ -200,14 +172,17 @@ static int do_verify_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_dat xd->value_len = je16_to_cpu(rx.value_len); xd->data_crc = je32_to_cpu(rx.data_crc); - /* This JFFS2_NODETYPE_XATTR node is checked */ - jeb = &c->blocks[ref_offset(xd->node) / c->sector_size]; - totlen = PAD(je32_to_cpu(rx.totlen)); - spin_lock(&c->erase_completion_lock); - c->unchecked_size -= totlen; c->used_size += totlen; - jeb->unchecked_size -= totlen; jeb->used_size += totlen; - xd->node->flash_offset = ref_offset(xd->node) | REF_PRISTINE; + complete: + for (raw=xd->node; raw != (void *)xd; raw=raw->next_in_ino) { + jeb = &c->blocks[ref_offset(raw) / c->sector_size]; + totlen = PAD(ref_totlen(c, jeb, raw)); + if (ref_flags(raw) == REF_UNCHECKED) { + c->unchecked_size -= totlen; c->used_size += totlen; + jeb->unchecked_size -= totlen; jeb->used_size += totlen; + } + raw->flash_offset = ref_offset(raw) | ((xd->node==raw) ? REF_PRISTINE : REF_NORMAL); + } spin_unlock(&c->erase_completion_lock); /* unchecked xdatum is chained with c->xattr_unchecked */ @@ -227,7 +202,6 @@ static int do_load_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum uint32_t crc, length; int i, ret, retry = 0; - BUG_ON(!xd->node); BUG_ON(ref_flags(xd->node) != REF_PRISTINE); BUG_ON(!list_empty(&xd->xindex)); retry: @@ -253,6 +227,7 @@ static int do_load_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum " at %#08x, read: 0x%08x calculated: 0x%08x\n", ref_offset(xd->node), xd->data_crc, crc); kfree(data); + xd->flags |= JFFS2_XFLAGS_INVALID; return EIO; } @@ -286,16 +261,14 @@ static int load_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *x * rc > 0 : Unrecoverable error, this node should be deleted. */ int rc = 0; - BUG_ON(xd->xname); - if (!xd->node) + + BUG_ON(xd->flags & JFFS2_XFLAGS_DEAD); + if (xd->xname) + return 0; + if (xd->flags & JFFS2_XFLAGS_INVALID) return EIO; - if (unlikely(ref_flags(xd->node) != REF_PRISTINE)) { + if (unlikely(is_xattr_datum_unchecked(c, xd))) rc = do_verify_xattr_datum(c, xd); - if (rc > 0) { - list_del_init(&xd->xindex); - delete_xattr_datum_node(c, xd); - } - } if (!rc) rc = do_load_xattr_datum(c, xd); return rc; @@ -304,7 +277,6 @@ static int load_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *x static int save_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) { /* must be called under down_write(xattr_sem) */ - struct jffs2_raw_node_ref *raw; struct jffs2_raw_xattr rx; struct kvec vecs[2]; size_t length; @@ -312,14 +284,16 @@ static int save_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *x uint32_t phys_ofs = write_ofs(c); BUG_ON(!xd->xname); + BUG_ON(xd->flags & (JFFS2_XFLAGS_DEAD|JFFS2_XFLAGS_INVALID)); vecs[0].iov_base = ℞ - vecs[0].iov_len = PAD(sizeof(rx)); + vecs[0].iov_len = sizeof(rx); vecs[1].iov_base = xd->xname; vecs[1].iov_len = xd->name_len + 1 + xd->value_len; totlen = vecs[0].iov_len + vecs[1].iov_len; /* Setup raw-xattr */ + memset(&rx, 0, sizeof(rx)); rx.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK); rx.nodetype = cpu_to_je16(JFFS2_NODETYPE_XATTR); rx.totlen = cpu_to_je32(PAD(totlen)); @@ -343,14 +317,8 @@ static int save_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *x return rc; } - /* success */ - raw = jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, PAD(totlen), NULL); - /* FIXME */ raw->next_in_ino = (void *)xd; - - if (xd->node) - delete_xattr_datum_node(c, xd); - xd->node = raw; + jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, PAD(totlen), (void *)xd); dbg_xattr("success on saving xdatum (xid=%u, version=%u, xprefix=%u, xname='%s')\n", xd->xid, xd->version, xd->xprefix, xd->xname); @@ -377,7 +345,7 @@ static struct jffs2_xattr_datum *create_xattr_datum(struct jffs2_sb_info *c, && xd->value_len==xsize && !strcmp(xd->xname, xname) && !memcmp(xd->xvalue, xvalue, xsize)) { - xd->refcnt++; + atomic_inc(&xd->refcnt); return xd; } } @@ -397,7 +365,7 @@ static struct jffs2_xattr_datum *create_xattr_datum(struct jffs2_sb_info *c, strcpy(data, xname); memcpy(data + name_len + 1, xvalue, xsize); - xd->refcnt = 1; + atomic_set(&xd->refcnt, 1); xd->xid = ++c->highest_xid; xd->flags |= JFFS2_XFLAGS_HOT; xd->xprefix = xprefix; @@ -426,20 +394,36 @@ static struct jffs2_xattr_datum *create_xattr_datum(struct jffs2_sb_info *c, return xd; } +static void delete_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) +{ + /* must be called under down_write(xattr_sem) */ + BUG_ON(atomic_read(&xd->refcnt)); + + unload_xattr_datum(c, xd); + xd->flags |= JFFS2_XFLAGS_DEAD; + spin_lock(&c->erase_completion_lock); + if (xd->node == (void *)xd) { + BUG_ON(!(xd->flags & JFFS2_XFLAGS_INVALID)); + jffs2_free_xattr_datum(xd); + } else { + list_add(&xd->xindex, &c->xattr_dead_list); + } + spin_unlock(&c->erase_completion_lock); + dbg_xattr("xdatum(xid=%u, version=%u) was removed.\n", xd->xid, xd->version); +} + /* -------- xref related functions ------------------ * verify_xattr_ref(c, ref) * is used to load xref information from medium. Because summary data does not * contain xid/ino, it's necessary to verify once while mounting process. - * delete_xattr_ref_node(c, ref) - * is used to delete a jffs2 node is dominated by xref. When EBS is enabled, - * it overwrites the obsolete node by myself. - * delete_xattr_ref(c, ref) - * is used to delete jffs2_xattr_ref object. If the reference counter of xdatum - * is refered by this xref become 0, delete_xattr_datum() is called later. * save_xattr_ref(c, ref) - * is used to write xref to medium. + * is used to write xref to medium. If delete marker is marked, it write + * a delete marker of xref into medium. * create_xattr_ref(c, ic, xd) * is used to create a new xref and write to medium. + * delete_xattr_ref(c, ref) + * is used to delete jffs2_xattr_ref. It marks xref XREF_DELETE_MARKER, + * and allows GC to reclaim those physical nodes. * jffs2_xattr_delete_inode(c, ic) * is called to remove xrefs related to obsolete inode when inode is unlinked. * jffs2_xattr_free_inode(c, ic) @@ -450,25 +434,29 @@ static struct jffs2_xattr_datum *create_xattr_datum(struct jffs2_sb_info *c, static int verify_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) { struct jffs2_eraseblock *jeb; + struct jffs2_raw_node_ref *raw; struct jffs2_raw_xref rr; size_t readlen; - uint32_t crc, totlen; + uint32_t crc, offset, totlen; int rc; - BUG_ON(ref_flags(ref->node) != REF_UNCHECKED); + spin_lock(&c->erase_completion_lock); + if (ref_flags(ref->node) != REF_UNCHECKED) + goto complete; + offset = ref_offset(ref->node); + spin_unlock(&c->erase_completion_lock); - rc = jffs2_flash_read(c, ref_offset(ref->node), sizeof(rr), &readlen, (char *)&rr); + rc = jffs2_flash_read(c, offset, sizeof(rr), &readlen, (char *)&rr); if (rc || sizeof(rr) != readlen) { JFFS2_WARNING("jffs2_flash_read()=%d, req=%zu, read=%zu, at %#08x\n", - rc, sizeof(rr), readlen, ref_offset(ref->node)); + rc, sizeof(rr), readlen, offset); return rc ? rc : -EIO; } /* obsolete node */ crc = crc32(0, &rr, sizeof(rr) - 4); if (crc != je32_to_cpu(rr.node_crc)) { - if (je32_to_cpu(rr.node_crc) != 0xffffffff) - JFFS2_ERROR("node CRC failed at %#08x, read=%#08x, calc=%#08x\n", - ref_offset(ref->node), je32_to_cpu(rr.node_crc), crc); + JFFS2_ERROR("node CRC failed at %#08x, read=%#08x, calc=%#08x\n", + offset, je32_to_cpu(rr.node_crc), crc); return EIO; } if (je16_to_cpu(rr.magic) != JFFS2_MAGIC_BITMASK @@ -476,22 +464,28 @@ static int verify_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref || je32_to_cpu(rr.totlen) != PAD(sizeof(rr))) { JFFS2_ERROR("inconsistent xref at %#08x, magic=%#04x/%#04x, " "nodetype=%#04x/%#04x, totlen=%u/%zu\n", - ref_offset(ref->node), je16_to_cpu(rr.magic), JFFS2_MAGIC_BITMASK, + offset, je16_to_cpu(rr.magic), JFFS2_MAGIC_BITMASK, je16_to_cpu(rr.nodetype), JFFS2_NODETYPE_XREF, je32_to_cpu(rr.totlen), PAD(sizeof(rr))); return EIO; } ref->ino = je32_to_cpu(rr.ino); ref->xid = je32_to_cpu(rr.xid); - - /* fixup superblock/eraseblock info */ - jeb = &c->blocks[ref_offset(ref->node) / c->sector_size]; - totlen = PAD(sizeof(rr)); + ref->xseqno = je32_to_cpu(rr.xseqno); + if (ref->xseqno > c->highest_xseqno) + c->highest_xseqno = (ref->xseqno & ~XREF_DELETE_MARKER); spin_lock(&c->erase_completion_lock); - c->unchecked_size -= totlen; c->used_size += totlen; - jeb->unchecked_size -= totlen; jeb->used_size += totlen; - ref->node->flash_offset = ref_offset(ref->node) | REF_PRISTINE; + complete: + for (raw=ref->node; raw != (void *)ref; raw=raw->next_in_ino) { + jeb = &c->blocks[ref_offset(raw) / c->sector_size]; + totlen = PAD(ref_totlen(c, jeb, raw)); + if (ref_flags(raw) == REF_UNCHECKED) { + c->unchecked_size -= totlen; c->used_size += totlen; + jeb->unchecked_size -= totlen; jeb->used_size += totlen; + } + raw->flash_offset = ref_offset(raw) | ((ref->node==raw) ? REF_PRISTINE : REF_NORMAL); + } spin_unlock(&c->erase_completion_lock); dbg_xattr("success on verifying xref (ino=%u, xid=%u) at %#08x\n", @@ -499,58 +493,12 @@ static int verify_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref return 0; } -static void delete_xattr_ref_node(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) -{ - struct jffs2_raw_xref rr; - size_t length; - int rc; - - if (jffs2_sum_active()) { - memset(&rr, 0xff, sizeof(rr)); - rc = jffs2_flash_read(c, ref_offset(ref->node), - sizeof(struct jffs2_unknown_node), - &length, (char *)&rr); - if (rc || length != sizeof(struct jffs2_unknown_node)) { - JFFS2_ERROR("jffs2_flash_read()=%d, req=%zu, read=%zu at %#08x\n", - rc, sizeof(struct jffs2_unknown_node), - length, ref_offset(ref->node)); - } - rc = jffs2_flash_write(c, ref_offset(ref->node), sizeof(rr), - &length, (char *)&rr); - if (rc || length != sizeof(struct jffs2_raw_xref)) { - JFFS2_ERROR("jffs2_flash_write()=%d, req=%zu, wrote=%zu at %#08x\n", - rc, sizeof(rr), length, ref_offset(ref->node)); - } - } - spin_lock(&c->erase_completion_lock); - ref->node->next_in_ino = NULL; - spin_unlock(&c->erase_completion_lock); - jffs2_mark_node_obsolete(c, ref->node); - ref->node = NULL; -} - -static void delete_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) -{ - /* must be called under down_write(xattr_sem) */ - struct jffs2_xattr_datum *xd; - - BUG_ON(!ref->node); - delete_xattr_ref_node(c, ref); - - xd = ref->xd; - xd->refcnt--; - if (!xd->refcnt) - delete_xattr_datum(c, xd); - jffs2_free_xattr_ref(ref); -} - static int save_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) { /* must be called under down_write(xattr_sem) */ - struct jffs2_raw_node_ref *raw; struct jffs2_raw_xref rr; size_t length; - uint32_t phys_ofs = write_ofs(c); + uint32_t xseqno, phys_ofs = write_ofs(c); int ret; rr.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK); @@ -558,8 +506,16 @@ static int save_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) rr.totlen = cpu_to_je32(PAD(sizeof(rr))); rr.hdr_crc = cpu_to_je32(crc32(0, &rr, sizeof(struct jffs2_unknown_node) - 4)); - rr.ino = cpu_to_je32(ref->ic->ino); - rr.xid = cpu_to_je32(ref->xd->xid); + xseqno = (c->highest_xseqno += 2); + if (is_xattr_ref_dead(ref)) { + xseqno |= XREF_DELETE_MARKER; + rr.ino = cpu_to_je32(ref->ino); + rr.xid = cpu_to_je32(ref->xid); + } else { + rr.ino = cpu_to_je32(ref->ic->ino); + rr.xid = cpu_to_je32(ref->xd->xid); + } + rr.xseqno = cpu_to_je32(xseqno); rr.node_crc = cpu_to_je32(crc32(0, &rr, sizeof(rr) - 4)); ret = jffs2_flash_write(c, phys_ofs, sizeof(rr), &length, (char *)&rr); @@ -572,12 +528,9 @@ static int save_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) return ret; } - - raw = jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, PAD(sizeof(rr)), NULL); - /* FIXME */ raw->next_in_ino = (void *)ref; - if (ref->node) - delete_xattr_ref_node(c, ref); - ref->node = raw; + /* success */ + ref->xseqno = xseqno; + jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, PAD(sizeof(rr)), (void *)ref); dbg_xattr("success on saving xref (ino=%u, xid=%u)\n", ref->ic->ino, ref->xd->xid); @@ -610,6 +563,27 @@ static struct jffs2_xattr_ref *create_xattr_ref(struct jffs2_sb_info *c, struct return ref; /* success */ } +static void delete_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) +{ + /* must be called under down_write(xattr_sem) */ + struct jffs2_xattr_datum *xd; + + xd = ref->xd; + ref->xseqno |= XREF_DELETE_MARKER; + ref->ino = ref->ic->ino; + ref->xid = ref->xd->xid; + spin_lock(&c->erase_completion_lock); + ref->next = c->xref_dead_list; + c->xref_dead_list = ref; + spin_unlock(&c->erase_completion_lock); + + dbg_xattr("xref(ino=%u, xid=%u, xseqno=%u) was removed.\n", + ref->ino, ref->xid, ref->xseqno); + + if (atomic_dec_and_test(&xd->refcnt)) + delete_xattr_datum(c, xd); +} + void jffs2_xattr_delete_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic) { /* It's called from jffs2_clear_inode() on inode removing. @@ -638,8 +612,7 @@ void jffs2_xattr_free_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *i for (ref = ic->xref; ref; ref = _ref) { _ref = ref->next; xd = ref->xd; - xd->refcnt--; - if (!xd->refcnt) { + if (atomic_dec_and_test(&xd->refcnt)) { unload_xattr_datum(c, xd); jffs2_free_xattr_datum(xd); } @@ -655,7 +628,7 @@ static int check_xattr_ref_inode(struct jffs2_sb_info *c, struct jffs2_inode_cac * duplicate name/value pairs. If duplicate name/value pair would be found, * one will be removed. */ - struct jffs2_xattr_ref *ref, *cmp, **pref; + struct jffs2_xattr_ref *ref, *cmp, **pref, **pcmp; int rc = 0; if (likely(ic->flags & INO_FLAGS_XATTR_CHECKED)) @@ -673,13 +646,13 @@ static int check_xattr_ref_inode(struct jffs2_sb_info *c, struct jffs2_inode_cac } else if (unlikely(rc < 0)) goto out; } - for (cmp=ref->next, pref=&ref->next; cmp; pref=&cmp->next, cmp=cmp->next) { + for (cmp=ref->next, pcmp=&ref->next; cmp; pcmp=&cmp->next, cmp=cmp->next) { if (!cmp->xd->xname) { ref->xd->flags |= JFFS2_XFLAGS_BIND; rc = load_xattr_datum(c, cmp->xd); ref->xd->flags &= ~JFFS2_XFLAGS_BIND; if (unlikely(rc > 0)) { - *pref = cmp->next; + *pcmp = cmp->next; delete_xattr_ref(c, cmp); goto retry; } else if (unlikely(rc < 0)) @@ -687,8 +660,13 @@ static int check_xattr_ref_inode(struct jffs2_sb_info *c, struct jffs2_inode_cac } if (ref->xd->xprefix == cmp->xd->xprefix && !strcmp(ref->xd->xname, cmp->xd->xname)) { - *pref = cmp->next; - delete_xattr_ref(c, cmp); + if (ref->xseqno > cmp->xseqno) { + *pcmp = cmp->next; + delete_xattr_ref(c, cmp); + } else { + *pref = ref->next; + delete_xattr_ref(c, ref); + } goto retry; } } @@ -719,9 +697,13 @@ void jffs2_init_xattr_subsystem(struct jffs2_sb_info *c) for (i=0; i < XATTRINDEX_HASHSIZE; i++) INIT_LIST_HEAD(&c->xattrindex[i]); INIT_LIST_HEAD(&c->xattr_unchecked); + INIT_LIST_HEAD(&c->xattr_dead_list); + c->xref_dead_list = NULL; c->xref_temp = NULL; init_rwsem(&c->xattr_sem); + c->highest_xid = 0; + c->highest_xseqno = 0; c->xdatum_mem_usage = 0; c->xdatum_mem_threshold = 32 * 1024; /* Default 32KB */ } @@ -751,7 +733,11 @@ void jffs2_clear_xattr_subsystem(struct jffs2_sb_info *c) _ref = ref->next; jffs2_free_xattr_ref(ref); } - c->xref_temp = NULL; + + for (ref=c->xref_dead_list; ref; ref = _ref) { + _ref = ref->next; + jffs2_free_xattr_ref(ref); + } for (i=0; i < XATTRINDEX_HASHSIZE; i++) { list_for_each_entry_safe(xd, _xd, &c->xattrindex[i], xindex) { @@ -761,100 +747,143 @@ void jffs2_clear_xattr_subsystem(struct jffs2_sb_info *c) jffs2_free_xattr_datum(xd); } } + + list_for_each_entry_safe(xd, _xd, &c->xattr_dead_list, xindex) { + list_del(&xd->xindex); + jffs2_free_xattr_datum(xd); + } } +#define XREF_TMPHASH_SIZE (128) void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c) { struct jffs2_xattr_ref *ref, *_ref; + struct jffs2_xattr_ref *xref_tmphash[XREF_TMPHASH_SIZE]; struct jffs2_xattr_datum *xd, *_xd; struct jffs2_inode_cache *ic; - int i, xdatum_count =0, xdatum_unchecked_count = 0, xref_count = 0; + struct jffs2_raw_node_ref *raw; + int i, xdatum_count = 0, xdatum_unchecked_count = 0, xref_count = 0; + int xdatum_orphan_count = 0, xref_orphan_count = 0, xref_dead_count = 0; BUG_ON(!(c->flags & JFFS2_SB_FLAG_BUILDING)); - /* Phase.1 */ + /* Phase.1 : Merge same xref */ + for (i=0; i < XREF_TMPHASH_SIZE; i++) + xref_tmphash[i] = NULL; for (ref=c->xref_temp; ref; ref=_ref) { + struct jffs2_xattr_ref *tmp; + _ref = ref->next; - /* checking REF_UNCHECKED nodes */ if (ref_flags(ref->node) != REF_PRISTINE) { if (verify_xattr_ref(c, ref)) { - delete_xattr_ref_node(c, ref); + BUG_ON(ref->node->next_in_ino != (void *)ref); + ref->node->next_in_ino = NULL; + jffs2_mark_node_obsolete(c, ref->node); jffs2_free_xattr_ref(ref); continue; } } - /* At this point, ref->xid and ref->ino contain XID and inode number. - ref->xd and ref->ic are not valid yet. */ - xd = jffs2_find_xattr_datum(c, ref->xid); - ic = jffs2_get_ino_cache(c, ref->ino); - if (!xd || !ic) { - if (ref_flags(ref->node) != REF_UNCHECKED) - JFFS2_WARNING("xref(ino=%u, xid=%u) is orphan. \n", - ref->ino, ref->xid); - delete_xattr_ref_node(c, ref); + + i = (ref->ino ^ ref->xid) % XREF_TMPHASH_SIZE; + for (tmp=xref_tmphash[i]; tmp; tmp=tmp->next) { + if (tmp->ino == ref->ino && tmp->xid == ref->xid) + break; + } + if (tmp) { + raw = ref->node; + if (ref->xseqno > tmp->xseqno) { + tmp->xseqno = ref->xseqno; + raw->next_in_ino = tmp->node; + tmp->node = raw; + } else { + raw->next_in_ino = tmp->node->next_in_ino; + tmp->node->next_in_ino = raw; + } jffs2_free_xattr_ref(ref); continue; + } else { + ref->next = xref_tmphash[i]; + xref_tmphash[i] = ref; } - ref->xd = xd; - ref->ic = ic; - xd->refcnt++; - ref->next = ic->xref; - ic->xref = ref; - xref_count++; } c->xref_temp = NULL; - /* After this, ref->xid/ino are NEVER used. */ - /* Phase.2 */ + /* Phase.2 : Bind xref with inode_cache and xattr_datum */ + for (i=0; i < XREF_TMPHASH_SIZE; i++) { + for (ref=xref_tmphash[i]; ref; ref=_ref) { + xref_count++; + _ref = ref->next; + if (is_xattr_ref_dead(ref)) { + ref->next = c->xref_dead_list; + c->xref_dead_list = ref; + xref_dead_count++; + continue; + } + /* At this point, ref->xid and ref->ino contain XID and inode number. + ref->xd and ref->ic are not valid yet. */ + xd = jffs2_find_xattr_datum(c, ref->xid); + ic = jffs2_get_ino_cache(c, ref->ino); + if (!xd || !ic) { + dbg_xattr("xref(ino=%u, xid=%u, xseqno=%u) is orphan.\n", + ref->ino, ref->xid, ref->xseqno); + ref->xseqno |= XREF_DELETE_MARKER; + ref->next = c->xref_dead_list; + c->xref_dead_list = ref; + xref_orphan_count++; + continue; + } + ref->xd = xd; + ref->ic = ic; + atomic_inc(&xd->refcnt); + ref->next = ic->xref; + ic->xref = ref; + } + } + + /* Phase.3 : Link unchecked xdatum to xattr_unchecked list */ for (i=0; i < XATTRINDEX_HASHSIZE; i++) { list_for_each_entry_safe(xd, _xd, &c->xattrindex[i], xindex) { + xdatum_count++; list_del_init(&xd->xindex); - if (!xd->refcnt) { - if (ref_flags(xd->node) != REF_UNCHECKED) - JFFS2_WARNING("orphan xdatum(xid=%u, version=%u) at %#08x\n", - xd->xid, xd->version, ref_offset(xd->node)); - delete_xattr_datum(c, xd); + if (!atomic_read(&xd->refcnt)) { + dbg_xattr("xdatum(xid=%u, version=%u) is orphan.\n", + xd->xid, xd->version); + xd->flags |= JFFS2_XFLAGS_DEAD; + list_add(&xd->xindex, &c->xattr_unchecked); + xdatum_orphan_count++; continue; } - if (ref_flags(xd->node) != REF_PRISTINE) { - dbg_xattr("unchecked xdatum(xid=%u) at %#08x\n", - xd->xid, ref_offset(xd->node)); + if (is_xattr_datum_unchecked(c, xd)) { + dbg_xattr("unchecked xdatum(xid=%u, version=%u)\n", + xd->xid, xd->version); list_add(&xd->xindex, &c->xattr_unchecked); xdatum_unchecked_count++; } - xdatum_count++; } } /* build complete */ - JFFS2_NOTICE("complete building xattr subsystem, %u of xdatum (%u unchecked) and " - "%u of xref found.\n", xdatum_count, xdatum_unchecked_count, xref_count); + JFFS2_NOTICE("complete building xattr subsystem, %u of xdatum" + " (%u unchecked, %u orphan) and " + "%u of xref (%u dead, %u orphan) found.\n", + xdatum_count, xdatum_unchecked_count, xdatum_orphan_count, + xref_count, xref_dead_count, xref_orphan_count); } struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c, uint32_t xid, uint32_t version) { - struct jffs2_xattr_datum *xd, *_xd; + struct jffs2_xattr_datum *xd; - _xd = jffs2_find_xattr_datum(c, xid); - if (_xd) { - dbg_xattr("duplicate xdatum (xid=%u, version=%u/%u) at %#08x\n", - xid, version, _xd->version, ref_offset(_xd->node)); - if (version < _xd->version) - return ERR_PTR(-EEXIST); - } - xd = jffs2_alloc_xattr_datum(); - if (!xd) - return ERR_PTR(-ENOMEM); - xd->xid = xid; - xd->version = version; - if (xd->xid > c->highest_xid) - c->highest_xid = xd->xid; - list_add_tail(&xd->xindex, &c->xattrindex[xid % XATTRINDEX_HASHSIZE]); - - if (_xd) { - list_del_init(&_xd->xindex); - delete_xattr_datum_node(c, _xd); - jffs2_free_xattr_datum(_xd); + xd = jffs2_find_xattr_datum(c, xid); + if (!xd) { + xd = jffs2_alloc_xattr_datum(); + if (!xd) + return ERR_PTR(-ENOMEM); + xd->xid = xid; + xd->version = version; + if (xd->xid > c->highest_xid) + c->highest_xid = xd->xid; + list_add_tail(&xd->xindex, &c->xattrindex[xid % XATTRINDEX_HASHSIZE]); } return xd; } @@ -1080,9 +1109,23 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname, goto out; } if (!buffer) { - *pref = ref->next; - delete_xattr_ref(c, ref); - rc = 0; + ref->ino = ic->ino; + ref->xid = xd->xid; + ref->xseqno |= XREF_DELETE_MARKER; + rc = save_xattr_ref(c, ref); + if (!rc) { + *pref = ref->next; + spin_lock(&c->erase_completion_lock); + ref->next = c->xref_dead_list; + c->xref_dead_list = ref; + spin_unlock(&c->erase_completion_lock); + if (atomic_dec_and_test(&xd->refcnt)) + delete_xattr_datum(c, xd); + } else { + ref->ic = ic; + ref->xd = xd; + ref->xseqno &= ~XREF_DELETE_MARKER; + } goto out; } goto found; @@ -1094,7 +1137,7 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname, goto out; } if (!buffer) { - rc = -EINVAL; + rc = -ENODATA; goto out; } found: @@ -1110,16 +1153,14 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname, request = PAD(sizeof(struct jffs2_raw_xref)); rc = jffs2_reserve_space(c, request, &length, ALLOC_NORMAL, JFFS2_SUMMARY_XREF_SIZE); + down_write(&c->xattr_sem); if (rc) { JFFS2_WARNING("jffs2_reserve_space()=%d, request=%u\n", rc, request); - down_write(&c->xattr_sem); - xd->refcnt--; - if (!xd->refcnt) + if (atomic_dec_and_test(&xd->refcnt)) delete_xattr_datum(c, xd); up_write(&c->xattr_sem); return rc; } - down_write(&c->xattr_sem); if (ref) *pref = ref->next; newref = create_xattr_ref(c, ic, xd); @@ -1129,8 +1170,7 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname, ic->xref = ref; } rc = PTR_ERR(newref); - xd->refcnt--; - if (!xd->refcnt) + if (atomic_dec_and_test(&xd->refcnt)) delete_xattr_datum(c, xd); } else if (ref) { delete_xattr_ref(c, ref); @@ -1142,38 +1182,40 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname, } /* -------- garbage collector functions ------------- - * jffs2_garbage_collect_xattr_datum(c, xd) + * jffs2_garbage_collect_xattr_datum(c, xd, raw) * is used to move xdatum into new node. - * jffs2_garbage_collect_xattr_ref(c, ref) + * jffs2_garbage_collect_xattr_ref(c, ref, raw) * is used to move xref into new node. * jffs2_verify_xattr(c) * is used to call do_verify_xattr_datum() before garbage collecting. + * jffs2_release_xattr_datum(c, xd) + * is used to release an in-memory object of xdatum. + * jffs2_release_xattr_ref(c, ref) + * is used to release an in-memory object of xref. * -------------------------------------------------- */ -int jffs2_garbage_collect_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) +int jffs2_garbage_collect_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd, + struct jffs2_raw_node_ref *raw) { uint32_t totlen, length, old_ofs; - int rc = -EINVAL; + int rc = 0; down_write(&c->xattr_sem); - BUG_ON(!xd->node); - - old_ofs = ref_offset(xd->node); - totlen = ref_totlen(c, c->gcblock, xd->node); - if (totlen < sizeof(struct jffs2_raw_xattr)) + if (xd->node != raw) + goto out; + if (xd->flags & (JFFS2_XFLAGS_DEAD|JFFS2_XFLAGS_INVALID)) goto out; - if (!xd->xname) { - rc = load_xattr_datum(c, xd); - if (unlikely(rc > 0)) { - delete_xattr_datum_node(c, xd); - rc = 0; - goto out; - } else if (unlikely(rc < 0)) - goto out; + rc = load_xattr_datum(c, xd); + if (unlikely(rc)) { + rc = (rc > 0) ? 0 : rc; + goto out; } + old_ofs = ref_offset(xd->node); + totlen = PAD(sizeof(struct jffs2_raw_xattr) + + xd->name_len + 1 + xd->value_len); rc = jffs2_reserve_space_gc(c, totlen, &length, JFFS2_SUMMARY_XATTR_SIZE); - if (rc || length < totlen) { - JFFS2_WARNING("jffs2_reserve_space()=%d, request=%u\n", rc, totlen); + if (rc) { + JFFS2_WARNING("jffs2_reserve_space_gc()=%d, request=%u\n", rc, totlen); rc = rc ? rc : -EBADFD; goto out; } @@ -1182,27 +1224,32 @@ int jffs2_garbage_collect_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xatt dbg_xattr("xdatum (xid=%u, version=%u) GC'ed from %#08x to %08x\n", xd->xid, xd->version, old_ofs, ref_offset(xd->node)); out: + if (!rc) + jffs2_mark_node_obsolete(c, raw); up_write(&c->xattr_sem); return rc; } - -int jffs2_garbage_collect_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) +int jffs2_garbage_collect_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref, + struct jffs2_raw_node_ref *raw) { uint32_t totlen, length, old_ofs; - int rc = -EINVAL; + int rc = 0; down_write(&c->xattr_sem); BUG_ON(!ref->node); + if (ref->node != raw) + goto out; + if (is_xattr_ref_dead(ref) && (raw->next_in_ino == (void *)ref)) + goto out; + old_ofs = ref_offset(ref->node); totlen = ref_totlen(c, c->gcblock, ref->node); - if (totlen != sizeof(struct jffs2_raw_xref)) - goto out; rc = jffs2_reserve_space_gc(c, totlen, &length, JFFS2_SUMMARY_XREF_SIZE); - if (rc || length < totlen) { - JFFS2_WARNING("%s: jffs2_reserve_space() = %d, request = %u\n", + if (rc) { + JFFS2_WARNING("%s: jffs2_reserve_space_gc() = %d, request = %u\n", __FUNCTION__, rc, totlen); rc = rc ? rc : -EBADFD; goto out; @@ -1212,6 +1259,8 @@ int jffs2_garbage_collect_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ dbg_xattr("xref (ino=%u, xid=%u) GC'ed from %#08x to %08x\n", ref->ic->ino, ref->xd->xid, old_ofs, ref_offset(ref->node)); out: + if (!rc) + jffs2_mark_node_obsolete(c, raw); up_write(&c->xattr_sem); return rc; } @@ -1219,20 +1268,59 @@ int jffs2_garbage_collect_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ int jffs2_verify_xattr(struct jffs2_sb_info *c) { struct jffs2_xattr_datum *xd, *_xd; + struct jffs2_eraseblock *jeb; + struct jffs2_raw_node_ref *raw; + uint32_t totlen; int rc; down_write(&c->xattr_sem); list_for_each_entry_safe(xd, _xd, &c->xattr_unchecked, xindex) { rc = do_verify_xattr_datum(c, xd); - if (rc == 0) { - list_del_init(&xd->xindex); - break; - } else if (rc > 0) { - list_del_init(&xd->xindex); - delete_xattr_datum_node(c, xd); + if (rc < 0) + continue; + list_del_init(&xd->xindex); + spin_lock(&c->erase_completion_lock); + for (raw=xd->node; raw != (void *)xd; raw=raw->next_in_ino) { + if (ref_flags(raw) != REF_UNCHECKED) + continue; + jeb = &c->blocks[ref_offset(raw) / c->sector_size]; + totlen = PAD(ref_totlen(c, jeb, raw)); + c->unchecked_size -= totlen; c->used_size += totlen; + jeb->unchecked_size -= totlen; jeb->used_size += totlen; + raw->flash_offset = ref_offset(raw) + | ((xd->node == (void *)raw) ? REF_PRISTINE : REF_NORMAL); } + if (xd->flags & JFFS2_XFLAGS_DEAD) + list_add(&xd->xindex, &c->xattr_dead_list); + spin_unlock(&c->erase_completion_lock); } up_write(&c->xattr_sem); - return list_empty(&c->xattr_unchecked) ? 1 : 0; } + +void jffs2_release_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd) +{ + /* must be called under spin_lock(&c->erase_completion_lock) */ + if (atomic_read(&xd->refcnt) || xd->node != (void *)xd) + return; + + list_del(&xd->xindex); + jffs2_free_xattr_datum(xd); +} + +void jffs2_release_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref) +{ + /* must be called under spin_lock(&c->erase_completion_lock) */ + struct jffs2_xattr_ref *tmp, **ptmp; + + if (ref->node != (void *)ref) + return; + + for (tmp=c->xref_dead_list, ptmp=&c->xref_dead_list; tmp; ptmp=&tmp->next, tmp=tmp->next) { + if (ref == tmp) { + *ptmp = tmp->next; + break; + } + } + jffs2_free_xattr_ref(ref); +} diff --git a/fs/jffs2/xattr.h b/fs/jffs2/xattr.h index 2c199856c582..06a5c69dcf8b 100644 --- a/fs/jffs2/xattr.h +++ b/fs/jffs2/xattr.h @@ -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); diff --git a/include/asm-arm/arch-s3c2410/regs-nand.h b/include/asm-arm/arch-s3c2410/regs-nand.h index 7cff235e667a..c1470c695c33 100644 --- a/include/asm-arm/arch-s3c2410/regs-nand.h +++ b/include/asm-arm/arch-s3c2410/regs-nand.h @@ -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 */ diff --git a/include/linux/jffs2.h b/include/linux/jffs2.h index c6f70660b371..c9c760700bc3 100644 --- a/include/linux/jffs2.h +++ b/include/linux/jffs2.h @@ -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)); |