#include <asm/types.h>
#include <asm/asi.h>
-#ifdef __GNUC__
+#define __BIG_ENDIAN
#ifdef CONFIG_SPARC32
#define __SWAB_64_THRU_32__
#endif
#ifdef CONFIG_SPARC64
-
-static inline __u16 ___arch__swab16p(const __u16 *addr)
+static inline __u16 __arch_swab16p(const __u16 *addr)
{
__u16 ret;
: "r" (addr), "i" (ASI_PL));
return ret;
}
+#define __arch_swab16p __arch_swab16p
-static inline __u32 ___arch__swab32p(const __u32 *addr)
+static inline __u32 __arch_swab32p(const __u32 *addr)
{
__u32 ret;
: "r" (addr), "i" (ASI_PL));
return ret;
}
+#define __arch_swab32p __arch_swab32p
-static inline __u64 ___arch__swab64p(const __u64 *addr)
+static inline __u64 __arch_swab64p(const __u64 *addr)
{
__u64 ret;
: "r" (addr), "i" (ASI_PL));
return ret;
}
-
-#define __arch__swab16p(x) ___arch__swab16p(x)
-#define __arch__swab32p(x) ___arch__swab32p(x)
-#define __arch__swab64p(x) ___arch__swab64p(x)
+#define __arch_swab64p __arch_swab64p
#endif /* CONFIG_SPARC64 */
-#define __BYTEORDER_HAS_U64__
-
-#endif
-
-#include <linux/byteorder/big_endian.h>
+#include <linux/byteorder.h>
#endif /* _SPARC_BYTEORDER_H */
{
struct platform_device *pdev = to_platform_device(dev);
struct m48t59_plat_data *pdata = pdev->dev.platform_data;
- void __iomem *regs = pdata->ioaddr;
- unsigned char val = readb(regs + ofs);
-
- /* the year 0 is 1968 */
- if (ofs == pdata->offset + M48T59_YEAR) {
- val += 0x68;
- if ((val & 0xf) > 9)
- val += 6;
- }
- return val;
+
+ return readb(pdata->ioaddr + ofs);
}
static void mostek_write_byte(struct device *dev, u32 ofs, u8 val)
{
struct platform_device *pdev = to_platform_device(dev);
struct m48t59_plat_data *pdata = pdev->dev.platform_data;
- void __iomem *regs = pdata->ioaddr;
-
- if (ofs == pdata->offset + M48T59_YEAR) {
- if (val < 0x68)
- val += 0x32;
- else
- val -= 0x68;
- if ((val & 0xf) > 9)
- val += 6;
- if ((val & 0xf0) > 0x9A)
- val += 0x60;
- }
- writeb(val, regs + ofs);
+
+ writeb(val, pdata->ioaddr + ofs);
}
static struct m48t59_plat_data m48t59_data = {
.name = "rtc",
.compatible = "bq4802",
},
+ {},
};
static struct of_platform_driver bq4802_driver = {
static unsigned char mostek_read_byte(struct device *dev, u32 ofs)
{
struct platform_device *pdev = to_platform_device(dev);
- struct m48t59_plat_data *pdata = pdev->dev.platform_data;
- void __iomem *regs;
- unsigned char val;
-
- regs = (void __iomem *) pdev->resource[0].start;
- val = readb(regs + ofs);
-
- /* the year 0 is 1968 */
- if (ofs == pdata->offset + M48T59_YEAR) {
- val += 0x68;
- if ((val & 0xf) > 9)
- val += 6;
- }
- return val;
+ void __iomem *regs = (void __iomem *) pdev->resource[0].start;
+
+ return readb(regs + ofs);
}
static void mostek_write_byte(struct device *dev, u32 ofs, u8 val)
{
struct platform_device *pdev = to_platform_device(dev);
- struct m48t59_plat_data *pdata = pdev->dev.platform_data;
- void __iomem *regs;
-
- regs = (void __iomem *) pdev->resource[0].start;
- if (ofs == pdata->offset + M48T59_YEAR) {
- if (val < 0x68)
- val += 0x32;
- else
- val -= 0x68;
- if ((val & 0xf) > 9)
- val += 6;
- if ((val & 0xf0) > 0x9A)
- val += 0x60;
- }
+ void __iomem *regs = (void __iomem *) pdev->resource[0].start;
+
writeb(val, regs + ofs);
}
{
void __iomem *addr = (void __iomem *) __addr;
- if (count) {
- u16 *ps = (u16 *)src;
- u32 *pi;
-
- if (((u64)src) & 0x2) {
- u16 val = le16_to_cpup(ps);
- outw(val, addr);
- ps++;
- count--;
- }
- pi = (u32 *)ps;
- while (count >= 2) {
- u32 w = le32_to_cpup(pi);
-
- pi++;
- outw(w >> 0, addr);
- outw(w >> 16, addr);
- count -= 2;
- }
- ps = (u16 *)pi;
- if (count) {
- u16 val = le16_to_cpup(ps);
- outw(val, addr);
- }
+ while (count--) {
+ __raw_writew(*(u16 *)src, addr);
+ src += sizeof(u16);
}
}
void outsl(unsigned long __addr, const void *src, unsigned long count)
{
void __iomem *addr = (void __iomem *) __addr;
+ u32 l, l2;
- if (count) {
- if ((((u64)src) & 0x3) == 0) {
- u32 *p = (u32 *)src;
- while (count--) {
- u32 val = cpu_to_le32p(p);
- outl(val, addr);
- p++;
- }
- } else {
- u8 *pb;
- u16 *ps = (u16 *)src;
- u32 l = 0, l2;
- u32 *pi;
-
- switch (((u64)src) & 0x3) {
- case 0x2:
- count -= 1;
- l = cpu_to_le16p(ps) << 16;
- ps++;
- pi = (u32 *)ps;
- while (count--) {
- l2 = cpu_to_le32p(pi);
- pi++;
- outl(((l >> 16) | (l2 << 16)), addr);
- l = l2;
- }
- ps = (u16 *)pi;
- l2 = cpu_to_le16p(ps);
- outl(((l >> 16) | (l2 << 16)), addr);
- break;
-
- case 0x1:
- count -= 1;
- pb = (u8 *)src;
- l = (*pb++ << 8);
- ps = (u16 *)pb;
- l2 = cpu_to_le16p(ps);
- ps++;
- l |= (l2 << 16);
- pi = (u32 *)ps;
- while (count--) {
- l2 = cpu_to_le32p(pi);
- pi++;
- outl(((l >> 8) | (l2 << 24)), addr);
- l = l2;
- }
- pb = (u8 *)pi;
- outl(((l >> 8) | (*pb << 24)), addr);
- break;
+ if (!count)
+ return;
- case 0x3:
- count -= 1;
- pb = (u8 *)src;
- l = (*pb++ << 24);
- pi = (u32 *)pb;
- while (count--) {
- l2 = cpu_to_le32p(pi);
- pi++;
- outl(((l >> 24) | (l2 << 8)), addr);
- l = l2;
- }
- ps = (u16 *)pi;
- l2 = cpu_to_le16p(ps);
- ps++;
- pb = (u8 *)ps;
- l2 |= (*pb << 16);
- outl(((l >> 24) | (l2 << 8)), addr);
- break;
- }
+ switch (((unsigned long)src) & 0x3) {
+ case 0x0:
+ /* src is naturally aligned */
+ while (count--) {
+ __raw_writel(*(u32 *)src, addr);
+ src += sizeof(u32);
+ }
+ break;
+ case 0x2:
+ /* 2-byte alignment */
+ while (count--) {
+ l = (*(u16 *)src) << 16;
+ l |= *(u16 *)(src + sizeof(u16));
+ __raw_writel(l, addr);
+ src += sizeof(u32);
+ }
+ break;
+ case 0x1:
+ /* Hold three bytes in l each time, grab a byte from l2 */
+ l = (*(u8 *)src) << 24;
+ l |= (*(u16 *)(src + sizeof(u8))) << 8;
+ src += sizeof(u8) + sizeof(u16);
+ while (count--) {
+ l2 = *(u32 *)src;
+ l |= (l2 >> 24);
+ __raw_writel(l, addr);
+ l = l2 << 8;
+ src += sizeof(u32);
+ }
+ break;
+ case 0x3:
+ /* Hold a byte in l each time, grab 3 bytes from l2 */
+ l = (*(u8 *)src) << 24;
+ src += sizeof(u8);
+ while (count--) {
+ l2 = *(u32 *)src;
+ l |= (l2 >> 8);
+ __raw_writel(l, addr);
+ l = l2 << 24;
+ src += sizeof(u32);
}
+ break;
}
}
* do_pata_set_dmamode - Initialize host controller PATA PIO timings
* @ap: Port whose timings we are configuring
* @adev: Drive in question
- * @udma: udma mode, 0 - 6
* @isich: set if the chip is an ICH device
*
* Set UDMA mode for device, in host controller PCI config space.
sectors |= ((u64)(tf->hob_lbah & 0xff)) << 40;
sectors |= ((u64)(tf->hob_lbam & 0xff)) << 32;
- sectors |= (tf->hob_lbal & 0xff) << 24;
+ sectors |= ((u64)(tf->hob_lbal & 0xff)) << 24;
sectors |= (tf->lbah & 0xff) << 16;
sectors |= (tf->lbam & 0xff) << 8;
sectors |= (tf->lbal & 0xff);
/**
* ata_pio_queue_task - Queue port_task
* @ap: The ata_port to queue port_task for
- * @fn: workqueue function to be scheduled
* @data: data for @fn to use
* @delay: delay time in msecs for workqueue function
*
static inline u8 ata_dev_knobble(struct ata_device *dev)
{
struct ata_port *ap = dev->link->ap;
+
+ if (ata_dev_blacklisted(dev) & ATA_HORKAGE_BRIDGE_OK)
+ return 0;
+
return ((ap->cbl == ATA_CBL_SATA) && (!ata_id_is_sata(dev->id)));
}
{ "TSSTcorp CDDVDW SH-S202N", "SB00", ATA_HORKAGE_IVB, },
{ "TSSTcorp CDDVDW SH-S202N", "SB01", ATA_HORKAGE_IVB, },
+ /* Devices that do not need bridging limits applied */
+ { "MTRON MSP-SATA*", NULL, ATA_HORKAGE_BRIDGE_OK, },
+
/* End Marker */
{ }
};
/**
* ata_qc_complete - Complete an active ATA command
* @qc: Command to complete
- * @err_mask: ATA Status register contents
*
* Indicate to the mid and upper layers that an ATA
* command has completed, with either an ok or not-ok status.
#include <linux/libata.h>
#define DRV_NAME "sata_via"
-#define DRV_VERSION "2.3"
+#define DRV_VERSION "2.4"
+/*
+ * vt8251 is different from other sata controllers of VIA. It has two
+ * channels, each channel has both Master and Slave slot.
+ */
enum board_ids_enum {
vt6420,
vt6421,
+ vt8251,
};
enum {
static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
static int svia_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
static int svia_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
+static int vt8251_scr_read(struct ata_link *link, unsigned int scr, u32 *val);
+static int vt8251_scr_write(struct ata_link *link, unsigned int scr, u32 val);
static void svia_tf_load(struct ata_port *ap, const struct ata_taskfile *tf);
static void svia_noop_freeze(struct ata_port *ap);
static int vt6420_prereset(struct ata_link *link, unsigned long deadline);
static const struct pci_device_id svia_pci_tbl[] = {
{ PCI_VDEVICE(VIA, 0x5337), vt6420 },
- { PCI_VDEVICE(VIA, 0x0591), vt6420 },
- { PCI_VDEVICE(VIA, 0x3149), vt6420 },
- { PCI_VDEVICE(VIA, 0x3249), vt6421 },
- { PCI_VDEVICE(VIA, 0x5287), vt6420 },
+ { PCI_VDEVICE(VIA, 0x0591), vt6420 }, /* 2 sata chnls (Master) */
+ { PCI_VDEVICE(VIA, 0x3149), vt6420 }, /* 2 sata chnls (Master) */
+ { PCI_VDEVICE(VIA, 0x3249), vt6421 }, /* 2 sata chnls, 1 pata chnl */
{ PCI_VDEVICE(VIA, 0x5372), vt6420 },
{ PCI_VDEVICE(VIA, 0x7372), vt6420 },
+ { PCI_VDEVICE(VIA, 0x5287), vt8251 }, /* 2 sata chnls (Master/Slave) */
{ } /* terminate list */
};
.scr_write = svia_scr_write,
};
+static struct ata_port_operations vt8251_ops = {
+ .inherits = &svia_base_ops,
+ .hardreset = sata_std_hardreset,
+ .scr_read = vt8251_scr_read,
+ .scr_write = vt8251_scr_write,
+};
+
static const struct ata_port_info vt6420_port_info = {
.flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
.pio_mask = 0x1f,
.port_ops = &vt6421_pata_ops,
};
+static struct ata_port_info vt8251_port_info = {
+ .flags = ATA_FLAG_SATA | ATA_FLAG_SLAVE_POSS |
+ ATA_FLAG_NO_LEGACY,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &vt8251_ops,
+};
+
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers");
MODULE_LICENSE("GPL");
return 0;
}
+static int vt8251_scr_read(struct ata_link *link, unsigned int scr, u32 *val)
+{
+ static const u8 ipm_tbl[] = { 1, 2, 6, 0 };
+ struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
+ int slot = 2 * link->ap->port_no + link->pmp;
+ u32 v = 0;
+ u8 raw;
+
+ switch (scr) {
+ case SCR_STATUS:
+ pci_read_config_byte(pdev, 0xA0 + slot, &raw);
+
+ /* read the DET field, bit0 and 1 of the config byte */
+ v |= raw & 0x03;
+
+ /* read the SPD field, bit4 of the configure byte */
+ if (raw & (1 << 4))
+ v |= 0x02 << 4;
+ else
+ v |= 0x01 << 4;
+
+ /* read the IPM field, bit2 and 3 of the config byte */
+ v |= ipm_tbl[(raw >> 2) & 0x3];
+ break;
+
+ case SCR_ERROR:
+ /* devices other than 5287 uses 0xA8 as base */
+ WARN_ON(pdev->device != 0x5287);
+ pci_read_config_dword(pdev, 0xB0 + slot * 4, &v);
+ break;
+
+ case SCR_CONTROL:
+ pci_read_config_byte(pdev, 0xA4 + slot, &raw);
+
+ /* read the DET field, bit0 and bit1 */
+ v |= ((raw & 0x02) << 1) | (raw & 0x01);
+
+ /* read the IPM field, bit2 and bit3 */
+ v |= ((raw >> 2) & 0x03) << 8;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ *val = v;
+ return 0;
+}
+
+static int vt8251_scr_write(struct ata_link *link, unsigned int scr, u32 val)
+{
+ struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
+ int slot = 2 * link->ap->port_no + link->pmp;
+ u32 v = 0;
+
+ switch (scr) {
+ case SCR_ERROR:
+ /* devices other than 5287 uses 0xA8 as base */
+ WARN_ON(pdev->device != 0x5287);
+ pci_write_config_dword(pdev, 0xB0 + slot * 4, val);
+ return 0;
+
+ case SCR_CONTROL:
+ /* set the DET field */
+ v |= ((val & 0x4) >> 1) | (val & 0x1);
+
+ /* set the IPM field */
+ v |= ((val >> 8) & 0x3) << 2;
+
+ pci_write_config_byte(pdev, 0xA4 + slot, v);
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
/**
* svia_tf_load - send taskfile registers to host controller
* @ap: Port to which output is sent
return 0;
}
+static int vt8251_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
+{
+ const struct ata_port_info *ppi[] = { &vt8251_port_info, NULL };
+ struct ata_host *host;
+ int i, rc;
+
+ rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+ if (rc)
+ return rc;
+ *r_host = host;
+
+ rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME);
+ if (rc) {
+ dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n");
+ return rc;
+ }
+
+ /* 8251 hosts four sata ports as M/S of the two channels */
+ for (i = 0; i < host->n_ports; i++)
+ ata_slave_link_init(host->ports[i]);
+
+ return 0;
+}
+
static void svia_configure(struct pci_dev *pdev)
{
u8 tmp8;
if (rc)
return rc;
- if (board_id == vt6420)
- bar_sizes = &svia_bar_sizes[0];
- else
+ if (board_id == vt6421)
bar_sizes = &vt6421_bar_sizes[0];
+ else
+ bar_sizes = &svia_bar_sizes[0];
for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++)
if ((pci_resource_start(pdev, i) == 0) ||
return -ENODEV;
}
- if (board_id == vt6420)
+ switch (board_id) {
+ case vt6420:
rc = vt6420_prepare_host(pdev, &host);
- else
+ break;
+ case vt6421:
rc = vt6421_prepare_host(pdev, &host);
- if (rc)
- return rc;
+ break;
+ case vt8251:
+ rc = vt8251_prepare_host(pdev, &host);
+ break;
+ default:
+ return -EINVAL;
+ }
svia_configure(pdev);
dev_dbg(dev, "Century bit is enabled\n");
tm->tm_year += 100; /* one century */
}
+#ifdef CONFIG_SPARC
+ /* Sun SPARC machines count years since 1968 */
+ tm->tm_year += 68;
+#endif
tm->tm_wday = bcd2bin(val & 0x07);
tm->tm_hour = bcd2bin(M48T59_READ(M48T59_HOUR) & 0x3F);
struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
unsigned long flags;
u8 val = 0;
+ int year = tm->tm_year;
+
+#ifdef CONFIG_SPARC
+ /* Sun SPARC machines count years since 1968 */
+ year -= 68;
+#endif
dev_dbg(dev, "RTC set time %04d-%02d-%02d %02d/%02d/%02d\n",
- tm->tm_year + 1900, tm->tm_mon, tm->tm_mday,
+ year + 1900, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
+ if (year < 0)
+ return -EINVAL;
+
spin_lock_irqsave(&m48t59->lock, flags);
/* Issue the WRITE command */
M48T59_SET_BITS(M48T59_CNTL_WRITE, M48T59_CNTL);
M48T59_WRITE((bin2bcd(tm->tm_mday) & 0x3F), M48T59_MDAY);
/* tm_mon is 0-11 */
M48T59_WRITE((bin2bcd(tm->tm_mon + 1) & 0x1F), M48T59_MONTH);
- M48T59_WRITE(bin2bcd(tm->tm_year % 100), M48T59_YEAR);
+ M48T59_WRITE(bin2bcd(year % 100), M48T59_YEAR);
- if (pdata->type == M48T59RTC_TYPE_M48T59 && (tm->tm_year / 100))
+ if (pdata->type == M48T59RTC_TYPE_M48T59 && (year / 100))
val = (M48T59_WDAY_CEB | M48T59_WDAY_CB);
val |= (bin2bcd(tm->tm_wday) & 0x07);
M48T59_WRITE(val, M48T59_WDAY);
M48T59_SET_BITS(M48T59_CNTL_READ, M48T59_CNTL);
tm->tm_year = bcd2bin(M48T59_READ(M48T59_YEAR));
+#ifdef CONFIG_SPARC
+ /* Sun SPARC machines count years since 1968 */
+ tm->tm_year += 68;
+#endif
/* tm_mon is 0-11 */
tm->tm_mon = bcd2bin(M48T59_READ(M48T59_MONTH)) - 1;
struct rtc_time *tm = &alrm->time;
u8 mday, hour, min, sec;
unsigned long flags;
+ int year = tm->tm_year;
+
+#ifdef CONFIG_SPARC
+ /* Sun SPARC machines count years since 1968 */
+ year -= 68;
+#endif
/* If no irq, we don't support ALARM */
if (m48t59->irq == NO_IRQ)
return -EIO;
+ if (year < 0)
+ return -EINVAL;
+
/*
* 0xff means "always match"
*/
spin_unlock_irqrestore(&m48t59->lock, flags);
dev_dbg(dev, "RTC set alarm time %04d-%02d-%02d %02d/%02d/%02d\n",
- tm->tm_year + 1900, tm->tm_mon, tm->tm_mday,
+ year + 1900, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
return 0;
}
EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
sb->s_flags |= MS_RDONLY;
EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT;
- journal_abort(EXT3_SB(sb)->s_journal, -EIO);
+ if (EXT3_SB(sb)->s_journal)
+ journal_abort(EXT3_SB(sb)->s_journal, -EIO);
}
void ext3_warning (struct super_block * sb, const char * function,
{
struct ext3_sb_info *sbi = EXT3_SB(sb);
struct ext3_super_block *es = sbi->s_es;
- int i;
+ int i, err;
ext3_xattr_put_super(sb);
- if (journal_destroy(sbi->s_journal) < 0)
+ err = journal_destroy(sbi->s_journal);
+ sbi->s_journal = NULL;
+ if (err < 0)
ext3_abort(sb, __func__, "Couldn't clean up the journal");
+
if (!(sb->s_flags & MS_RDONLY)) {
EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
es->s_state = cpu_to_le16(sbi->s_mount_state);
return;
}
-int ext4_claim_free_blocks(struct ext4_sb_info *sbi,
- s64 nblocks)
+/**
+ * ext4_has_free_blocks()
+ * @sbi: in-core super block structure.
+ * @nblocks: number of needed blocks
+ *
+ * Check if filesystem has nblocks free & available for allocation.
+ * On success return 1, return 0 on failure.
+ */
+int ext4_has_free_blocks(struct ext4_sb_info *sbi, s64 nblocks)
{
- s64 free_blocks, dirty_blocks;
- s64 root_blocks = 0;
+ s64 free_blocks, dirty_blocks, root_blocks;
struct percpu_counter *fbc = &sbi->s_freeblocks_counter;
struct percpu_counter *dbc = &sbi->s_dirtyblocks_counter;
free_blocks = percpu_counter_read_positive(fbc);
dirty_blocks = percpu_counter_read_positive(dbc);
-
- if (!capable(CAP_SYS_RESOURCE) &&
- sbi->s_resuid != current->fsuid &&
- (sbi->s_resgid == 0 || !in_group_p(sbi->s_resgid)))
- root_blocks = ext4_r_blocks_count(sbi->s_es);
+ root_blocks = ext4_r_blocks_count(sbi->s_es);
if (free_blocks - (nblocks + root_blocks + dirty_blocks) <
EXT4_FREEBLOCKS_WATERMARK) {
}
}
/* Check whether we have space after
- * accounting for current dirty blocks
+ * accounting for current dirty blocks & root reserved blocks.
*/
- if (free_blocks < ((root_blocks + nblocks) + dirty_blocks))
- /* we don't have free space */
- return -ENOSPC;
+ if (free_blocks >= ((root_blocks + nblocks) + dirty_blocks))
+ return 1;
+
+ /* Hm, nope. Are (enough) root reserved blocks available? */
+ if (sbi->s_resuid == current->fsuid ||
+ ((sbi->s_resgid != 0) && in_group_p(sbi->s_resgid)) ||
+ capable(CAP_SYS_RESOURCE)) {
+ if (free_blocks >= (nblocks + dirty_blocks))
+ return 1;
+ }
- /* Add the blocks to nblocks */
- percpu_counter_add(dbc, nblocks);
return 0;
}
-/**
- * ext4_has_free_blocks()
- * @sbi: in-core super block structure.
- * @nblocks: number of neeed blocks
- *
- * Check if filesystem has free blocks available for allocation.
- * Return the number of blocks avaible for allocation for this request
- * On success, return nblocks
- */
-ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi,
+int ext4_claim_free_blocks(struct ext4_sb_info *sbi,
s64 nblocks)
{
- s64 free_blocks, dirty_blocks;
- s64 root_blocks = 0;
- struct percpu_counter *fbc = &sbi->s_freeblocks_counter;
- struct percpu_counter *dbc = &sbi->s_dirtyblocks_counter;
-
- free_blocks = percpu_counter_read_positive(fbc);
- dirty_blocks = percpu_counter_read_positive(dbc);
-
- if (!capable(CAP_SYS_RESOURCE) &&
- sbi->s_resuid != current->fsuid &&
- (sbi->s_resgid == 0 || !in_group_p(sbi->s_resgid)))
- root_blocks = ext4_r_blocks_count(sbi->s_es);
-
- if (free_blocks - (nblocks + root_blocks + dirty_blocks) <
- EXT4_FREEBLOCKS_WATERMARK) {
- free_blocks = percpu_counter_sum(fbc);
- dirty_blocks = percpu_counter_sum(dbc);
- }
- if (free_blocks <= (root_blocks + dirty_blocks))
- /* we don't have free space */
+ if (ext4_has_free_blocks(sbi, nblocks)) {
+ percpu_counter_add(&sbi->s_dirtyblocks_counter, nblocks);
return 0;
-
- if (free_blocks - (root_blocks + dirty_blocks) < nblocks)
- return free_blocks - (root_blocks + dirty_blocks);
- return nblocks;
+ } else
+ return -ENOSPC;
}
-
/**
* ext4_should_retry_alloc()
* @sb: super block
ext4_lblk_t iblock, ext4_fsblk_t goal,
unsigned long *count, int *errp);
extern int ext4_claim_free_blocks(struct ext4_sb_info *sbi, s64 nblocks);
-extern ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi,
- s64 nblocks);
+extern int ext4_has_free_blocks(struct ext4_sb_info *sbi, s64 nblocks);
extern void ext4_free_blocks(handle_t *handle, struct inode *inode,
ext4_fsblk_t block, unsigned long count, int metadata);
extern void ext4_free_blocks_sb(handle_t *handle, struct super_block *sb,
EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
sb->s_flags |= MS_RDONLY;
EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT;
- jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
+ if (EXT4_SB(sb)->s_journal)
+ jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
}
void ext4_warning(struct super_block *sb, const char *function,
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_super_block *es = sbi->s_es;
- int i;
+ int i, err;
ext4_mb_release(sb);
ext4_ext_release(sb);
ext4_xattr_put_super(sb);
- if (jbd2_journal_destroy(sbi->s_journal) < 0)
- ext4_abort(sb, __func__, "Couldn't clean up the journal");
+ err = jbd2_journal_destroy(sbi->s_journal);
sbi->s_journal = NULL;
+ if (err < 0)
+ ext4_abort(sb, __func__, "Couldn't clean up the journal");
+
if (!(sb->s_flags & MS_RDONLY)) {
EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
es->s_state = cpu_to_le16(sbi->s_mount_state);
journal->j_committing_transaction = NULL;
spin_unlock(&journal->j_state_lock);
+ if (journal->j_commit_callback)
+ journal->j_commit_callback(journal, commit_transaction);
+
if (commit_transaction->t_checkpoint_list == NULL &&
commit_transaction->t_checkpoint_io_list == NULL) {
__jbd2_journal_drop_transaction(journal, commit_transaction);
}
spin_unlock(&journal->j_list_lock);
- if (journal->j_commit_callback)
- journal->j_commit_callback(journal, commit_transaction);
-
trace_mark(jbd2_end_commit, "dev %s transaction %d head %d",
- journal->j_devname, commit_transaction->t_tid,
+ journal->j_devname, journal->j_commit_sequence,
journal->j_tail_sequence);
jbd_debug(1, "JBD: commit %d complete, head %d\n",
journal->j_commit_sequence, journal->j_tail_sequence);
ATA_HORKAGE_IPM = (1 << 7), /* Link PM problems */
ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */
ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */
+ ATA_HORKAGE_BRIDGE_OK = (1 << 10), /* no bridge limits */
/* DMA mask for user DMA control: User visible values; DO NOT
renumber */
dbri->dma = dma_alloc_coherent(&op->dev,
sizeof(struct dbri_dma),
&dbri->dma_dvma, GFP_ATOMIC);
+ if (!dbri->dma)
+ return -ENOMEM;
memset((void *)dbri->dma, 0, sizeof(struct dbri_dma));
dprintk(D_GEN, "DMA Cmd Block 0x%p (0x%08x)\n",
projects / linux-2.6-omap-h63xx.git / commitdiff