Setting it to very large values will improve
performance.
-barrier=1 This enables/disables barriers. barrier=0 disables
- it, barrier=1 enables it.
+barrier=<0|1(*)> This enables/disables the use of write barriers in
+ the jbd code. barrier=0 disables, barrier=1 enables.
+ This also requires an IO stack which can support
+ barriers, and if jbd gets an error on a barrier
+ write, it will disable again with a warning.
+ Write barriers enforce proper on-disk ordering
+ of journal commits, making volatile disk write caches
+ safe to use, at some performance penalty. If
+ your disks are battery-backed in one way or another,
+ disabling barriers may safely improve performance.
orlov (*) This enables the new Orlov block allocator. It is
enabled by default.
cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml
+cflags-y += $(call cc-option,-mno-fdpic)
+
#
# -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that
# support it, while -Wa,-dsp by itself limits the range of usable opcodes
static struct plat_sci_port sci_platform_data[] = {
{
+ .mapbase = 0xffe00000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 80, 80, 80, 80 },
+ },{
+ .mapbase = 0xffe10000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 81, 81, 81, 81 },
+ },{
+ .mapbase = 0xffe20000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 82, 82, 82, 82 },
+ },{
.mapbase = 0xa4e30000,
.flags = UPF_BOOT_AUTOCONF,
.type = PORT_SCI,
.resource = rtc_resources,
};
+static struct resource sh7723_usb_host_resources[] = {
+ [0] = {
+ .name = "r8a66597_hcd",
+ .start = 0xa4d80000,
+ .end = 0xa4d800ff,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = 65,
+ .end = 65,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device sh7723_usb_host_device = {
+ .name = "r8a66597_hcd",
+ .id = 0,
+ .dev = {
+ .dma_mask = NULL, /* not use dma */
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .num_resources = ARRAY_SIZE(sh7723_usb_host_resources),
+ .resource = sh7723_usb_host_resources,
+};
+
static struct platform_device *sh7723_devices[] __initdata = {
&sci_device,
&rtc_device,
+ &sh7723_usb_host_device,
};
static int __init sh7723_devices_setup(void)
};
static DECLARE_INTC_DESC(intc_irq_desc, "sh7763-irq", irq_vectors,
- NULL, NULL, irq_mask_registers, irq_prio_registers,
- irq_sense_registers);
+ NULL, irq_mask_registers, irq_prio_registers,
+ irq_sense_registers);
+
/* External interrupt pins in IRL mode */
static struct intc_vect irl_vectors[] __initdata = {
};
static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7763-irl7654", irl_vectors,
- NULL, NULL, irl7654_mask_registers, NULL, NULL);
+ NULL, irl7654_mask_registers, NULL, NULL);
static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7763-irl3210", irl_vectors,
- NULL, NULL, irl3210_mask_registers, NULL, NULL);
+ NULL, irl3210_mask_registers, NULL, NULL);
#define INTC_ICR0 0xffd00000
#define INTC_INTMSK0 0xffd00044
mutex_lock(&block_class_lock);
list_for_each_entry(dev, &block_class.devices, node) {
+ if (dev->type != &disk_type)
+ continue;
if (strcmp(dev->bus_id, name) == 0) {
struct gendisk *disk = dev_to_disk(dev);
module will be called r8a66597-hcd.
config SUPERH_ON_CHIP_R8A66597
- boolean "Enable SuperH on-chip USB like the R8A66597"
- depends on USB_R8A66597_HCD && CPU_SUBTYPE_SH7366
+ boolean "Enable SuperH on-chip R8A66597 USB"
+ depends on USB_R8A66597_HCD && (CPU_SUBTYPE_SH7366 || CPU_SUBTYPE_SH7723)
help
- Renesas SuperH processor has USB like the R8A66597.
- This driver supported processor is SH7366.
+ This driver enables support for the on-chip R8A66597 in the
+ SH7366 and SH7723 processors.
}
+static int ext4_block_in_group(struct super_block *sb, ext4_fsblk_t block,
+ ext4_group_t block_group)
+{
+ ext4_group_t actual_group;
+ ext4_get_group_no_and_offset(sb, block, &actual_group, 0);
+ if (actual_group == block_group)
+ return 1;
+ return 0;
+}
+
+static int ext4_group_used_meta_blocks(struct super_block *sb,
+ ext4_group_t block_group)
+{
+ ext4_fsblk_t tmp;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ /* block bitmap, inode bitmap, and inode table blocks */
+ int used_blocks = sbi->s_itb_per_group + 2;
+
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
+ struct ext4_group_desc *gdp;
+ struct buffer_head *bh;
+
+ gdp = ext4_get_group_desc(sb, block_group, &bh);
+ if (!ext4_block_in_group(sb, ext4_block_bitmap(sb, gdp),
+ block_group))
+ used_blocks--;
+
+ if (!ext4_block_in_group(sb, ext4_inode_bitmap(sb, gdp),
+ block_group))
+ used_blocks--;
+
+ tmp = ext4_inode_table(sb, gdp);
+ for (; tmp < ext4_inode_table(sb, gdp) +
+ sbi->s_itb_per_group; tmp++) {
+ if (!ext4_block_in_group(sb, tmp, block_group))
+ used_blocks -= 1;
+ }
+ }
+ return used_blocks;
+}
/* Initializes an uninitialized block bitmap if given, and returns the
* number of blocks free in the group. */
unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
free_blocks = group_blocks - bit_max;
if (bh) {
- ext4_fsblk_t start;
+ ext4_fsblk_t start, tmp;
+ int flex_bg = 0;
for (bit = 0; bit < bit_max; bit++)
ext4_set_bit(bit, bh->b_data);
start = ext4_group_first_block_no(sb, block_group);
- /* Set bits for block and inode bitmaps, and inode table */
- ext4_set_bit(ext4_block_bitmap(sb, gdp) - start, bh->b_data);
- ext4_set_bit(ext4_inode_bitmap(sb, gdp) - start, bh->b_data);
- for (bit = (ext4_inode_table(sb, gdp) - start),
- bit_max = bit + sbi->s_itb_per_group; bit < bit_max; bit++)
- ext4_set_bit(bit, bh->b_data);
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb,
+ EXT4_FEATURE_INCOMPAT_FLEX_BG))
+ flex_bg = 1;
+ /* Set bits for block and inode bitmaps, and inode table */
+ tmp = ext4_block_bitmap(sb, gdp);
+ if (!flex_bg || ext4_block_in_group(sb, tmp, block_group))
+ ext4_set_bit(tmp - start, bh->b_data);
+
+ tmp = ext4_inode_bitmap(sb, gdp);
+ if (!flex_bg || ext4_block_in_group(sb, tmp, block_group))
+ ext4_set_bit(tmp - start, bh->b_data);
+
+ tmp = ext4_inode_table(sb, gdp);
+ for (; tmp < ext4_inode_table(sb, gdp) +
+ sbi->s_itb_per_group; tmp++) {
+ if (!flex_bg ||
+ ext4_block_in_group(sb, tmp, block_group))
+ ext4_set_bit(tmp - start, bh->b_data);
+ }
/*
* Also if the number of blocks within the group is
* less than the blocksize * 8 ( which is the size
*/
mark_bitmap_end(group_blocks, sb->s_blocksize * 8, bh->b_data);
}
-
- return free_blocks - sbi->s_itb_per_group - 2;
+ return free_blocks - ext4_group_used_meta_blocks(sb, block_group);
}
sbi = EXT4_SB(sb);
es = sbi->s_es;
- ext4_debug("using block group %lu(%d)\n", ac->ac_b_ex.fe_group,
- gdp->bg_free_blocks_count);
err = -EIO;
bitmap_bh = read_block_bitmap(sb, ac->ac_b_ex.fe_group);
if (!gdp)
goto out_err;
+ ext4_debug("using block group %lu(%d)\n", ac->ac_b_ex.fe_group,
+ gdp->bg_free_blocks_count);
+
err = ext4_journal_get_write_access(handle, gdp_bh);
if (err)
goto out_err;
static void ext4_mb_use_group_pa(struct ext4_allocation_context *ac,
struct ext4_prealloc_space *pa)
{
- unsigned len = ac->ac_o_ex.fe_len;
-
+ unsigned int len = ac->ac_o_ex.fe_len;
ext4_get_group_no_and_offset(ac->ac_sb, pa->pa_pstart,
&ac->ac_b_ex.fe_group,
&ac->ac_b_ex.fe_start);
}
blk = EXT4_SB(sb)->s_sbh->b_blocknr + 1 + EXT4_SB(sb)->s_gdb_count;
- data = (__le32 *)dind->b_data + EXT4_SB(sb)->s_gdb_count;
+ data = (__le32 *)dind->b_data + (EXT4_SB(sb)->s_gdb_count %
+ EXT4_ADDR_PER_BLOCK(sb));
end = (__le32 *)dind->b_data + EXT4_ADDR_PER_BLOCK(sb);
/* Get each reserved primary GDT block and verify it holds backups */
unsigned long def_mount_opts;
struct super_block *sb = vfs->mnt_sb;
struct ext4_sb_info *sbi = EXT4_SB(sb);
+ journal_t *journal = sbi->s_journal;
struct ext4_super_block *es = sbi->s_es;
def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
seq_printf(seq, ",commit=%u",
(unsigned) (sbi->s_commit_interval / HZ));
}
- if (test_opt(sb, BARRIER))
- seq_puts(seq, ",barrier=1");
+ /*
+ * We're changing the default of barrier mount option, so
+ * let's always display its mount state so it's clear what its
+ * status is.
+ */
+ seq_puts(seq, ",barrier=");
+ seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
+ if (test_opt(sb, JOURNAL_ASYNC_COMMIT))
+ seq_puts(seq, ",journal_async_commit");
if (test_opt(sb, NOBH))
seq_puts(seq, ",nobh");
if (!test_opt(sb, EXTENTS))
sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
set_opt(sbi->s_mount_opt, RESERVATION);
+ set_opt(sbi->s_mount_opt, BARRIER);
/*
* turn on extents feature by default in ext4 filesystem
EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL)) {
if (ext4_load_journal(sb, es, journal_devnum))
goto failed_mount3;
+ if (!(sb->s_flags & MS_RDONLY) &&
+ EXT4_SB(sb)->s_journal->j_failed_commit) {
+ printk(KERN_CRIT "EXT4-fs error (device %s): "
+ "ext4_fill_super: Journal transaction "
+ "%u is corrupt\n", sb->s_id,
+ EXT4_SB(sb)->s_journal->j_failed_commit);
+ if (test_opt (sb, ERRORS_RO)) {
+ printk (KERN_CRIT
+ "Mounting filesystem read-only\n");
+ sb->s_flags |= MS_RDONLY;
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+ es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+ }
+ if (test_opt(sb, ERRORS_PANIC)) {
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+ es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+ ext4_commit_super(sb, es, 1);
+ printk(KERN_CRIT
+ "EXT4-fs (device %s): mount failed\n",
+ sb->s_id);
+ goto failed_mount4;
+ }
+ }
} else if (journal_inum) {
if (ext4_create_journal(sb, es, journal_inum))
goto failed_mount3;
spin_unlock(&journal->j_state_lock);
/* And try again, without the barrier */
+ lock_buffer(bh);
set_buffer_uptodate(bh);
set_buffer_dirty(bh);
ret = submit_bh(WRITE, bh);
*crc32_sum = crc32_be(*crc32_sum, (void *)obh->b_data,
obh->b_size);
}
+ put_bh(obh);
}
return 0;
}
chksum_err = chksum_seen = 0;
if (info->end_transaction) {
- printk(KERN_ERR "JBD: Transaction %u "
- "found to be corrupt.\n",
- next_commit_ID - 1);
+ journal->j_failed_commit =
+ info->end_transaction;
brelse(bh);
break;
}
if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)){
- printk(KERN_ERR
- "JBD: Transaction %u "
- "found to be corrupt.\n",
- next_commit_ID);
+ journal->j_failed_commit =
+ next_commit_ID;
brelse(bh);
break;
}
struct proc_dir_entry *j_proc_entry;
struct transaction_stats_s j_stats;
+ /* Failed journal commit ID */
+ unsigned int j_failed_commit;
+
/*
* An opaque pointer to fs-private information. ext3 puts its
* superblock pointer here
#define MSDOS_DOT ". " /* ".", padded to MSDOS_NAME chars */
#define MSDOS_DOTDOT ".. " /* "..", padded to MSDOS_NAME chars */
-/* media of boot sector */
-static inline int fat_valid_media(u8 media)
-{
- return 0xf8 <= media || media == 0xf0;
-}
-
#define FAT_FIRST_ENT(s, x) ((MSDOS_SB(s)->fat_bits == 32 ? 0x0FFFFF00 : \
MSDOS_SB(s)->fat_bits == 16 ? 0xFF00 : 0xF00) | (x))
#endif
}
+/* media of boot sector */
+static inline int fat_valid_media(u8 media)
+{
+ return 0xf8 <= media || media == 0xf0;
+}
+
/* fat/cache.c */
extern void fat_cache_inval_inode(struct inode *inode);
extern int fat_get_cluster(struct inode *inode, int cluster,
}
#endif /* !PAGEFLAGS_EXTENDED */
+
+#define PAGE_FLAGS (1 << PG_lru | 1 << PG_private | 1 << PG_locked | \
+ 1 << PG_buddy | 1 << PG_writeback | \
+ 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active)
+
+/*
+ * Flags checked in bad_page(). Pages on the free list should not have
+ * these flags set. It they are, there is a problem.
+ */
+#define PAGE_FLAGS_CLEAR_WHEN_BAD (PAGE_FLAGS | 1 << PG_reclaim | 1 << PG_dirty)
+
+/*
+ * Flags checked when a page is freed. Pages being freed should not have
+ * these flags set. It they are, there is a problem.
+ */
+#define PAGE_FLAGS_CHECK_AT_FREE (PAGE_FLAGS | 1 << PG_reserved)
+
+/*
+ * Flags checked when a page is prepped for return by the page allocator.
+ * Pages being prepped should not have these flags set. It they are, there
+ * is a problem.
+ */
+#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | 1 << PG_reserved | 1 << PG_dirty)
+
#endif /* !__GENERATING_BOUNDS_H */
#endif /* PAGE_FLAGS_H */
printk(KERN_EMERG "Trying to fix it up, but a reboot is needed\n"
KERN_EMERG "Backtrace:\n");
dump_stack();
- page->flags &= ~(1 << PG_lru |
- 1 << PG_private |
- 1 << PG_locked |
- 1 << PG_active |
- 1 << PG_dirty |
- 1 << PG_reclaim |
- 1 << PG_slab |
- 1 << PG_swapcache |
- 1 << PG_writeback |
- 1 << PG_buddy );
+ page->flags &= ~PAGE_FLAGS_CLEAR_WHEN_BAD;
set_page_count(page, 0);
reset_page_mapcount(page);
page->mapping = NULL;
(page->mapping != NULL) |
(page_get_page_cgroup(page) != NULL) |
(page_count(page) != 0) |
- (page->flags & (
- 1 << PG_lru |
- 1 << PG_private |
- 1 << PG_locked |
- 1 << PG_active |
- 1 << PG_slab |
- 1 << PG_swapcache |
- 1 << PG_writeback |
- 1 << PG_reserved |
- 1 << PG_buddy ))))
+ (page->flags & PAGE_FLAGS_CHECK_AT_FREE)))
bad_page(page);
if (PageDirty(page))
__ClearPageDirty(page);
(page->mapping != NULL) |
(page_get_page_cgroup(page) != NULL) |
(page_count(page) != 0) |
- (page->flags & (
- 1 << PG_lru |
- 1 << PG_private |
- 1 << PG_locked |
- 1 << PG_active |
- 1 << PG_dirty |
- 1 << PG_slab |
- 1 << PG_swapcache |
- 1 << PG_writeback |
- 1 << PG_reserved |
- 1 << PG_buddy ))))
+ (page->flags & PAGE_FLAGS_CHECK_AT_PREP)))
bad_page(page);
/*
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff