--- /dev/null
+Device tree bindings for twl4030-wdt driver (TWL4030 watchdog)
+
+Required properties:
+ compatible = "ti,twl4030-wdt";
+
+Example:
+
+watchdog {
+ compatible = "ti,twl4030-wdt";
+};
VERSION = 3
PATCHLEVEL = 8
SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
NAME = Terrified Chipmunk
# *DOCUMENTATION*
interrupts = <11>;
};
+ watchdog {
+ compatible = "ti,twl4030-wdt";
+ };
+
vdac: regulator-vdac {
compatible = "ti,twl4030-vdac";
regulator-min-microvolt = <1800000>;
-#define NR_syscalls 311 /* length of syscall table */
+#define NR_syscalls 312 /* length of syscall table */
/*
* The following defines stop scripts/checksyscalls.sh from complaining about
#define __NR_process_vm_readv 1332
#define __NR_process_vm_writev 1333
#define __NR_accept4 1334
+#define __NR_finit_module 1335
#endif /* _UAPI_ASM_IA64_UNISTD_H */
data8 sys_process_vm_readv
data8 sys_process_vm_writev
data8 sys_accept4
+ data8 sys_finit_module // 1335
.org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls
#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
void update_vsyscall_tz(void)
{
- /* Make userspace gettimeofday spin until we're done. */
- ++vdso_data->tb_update_count;
- smp_mb();
vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
vdso_data->tz_dsttime = sys_tz.tz_dsttime;
- smp_mb();
- ++vdso_data->tb_update_count;
}
static void __init clocksource_init(void)
"amcc,makalu",
"apm,klondike",
"est,hotfoot",
- "plathome,obs600"
+ "plathome,obs600",
+ NULL
};
static int __init ppc40x_probe(void)
.callback = set_scan_all,
.ident = "Stratus/NEC ftServer",
.matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ftServer"),
+ DMI_MATCH(DMI_SYS_VENDOR, "Stratus"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ftServer"),
},
},
{}
led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
ret = devm_gpio_request_one(parent, template->gpio,
- GPIOF_DIR_OUT | (led_dat->active_low ^ state),
- template->name);
+ (led_dat->active_low ^ state) ?
+ GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
+ template->name);
if (ret < 0)
return ret;
}
/*
- * num_vfs > 0; number of vfs to enable
- * num_vfs = 0; disable all vfs
+ * num_vfs > 0; number of VFs to enable
+ * num_vfs = 0; disable all VFs
*
* Note: SRIOV spec doesn't allow partial VF
- * disable, so its all or none.
+ * disable, so it's all or none.
*/
static ssize_t sriov_numvfs_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pci_dev *pdev = to_pci_dev(dev);
- int num_vfs_enabled = 0;
- int num_vfs;
- int ret = 0;
- u16 total;
+ int ret;
+ u16 num_vfs;
- if (kstrtoint(buf, 0, &num_vfs) < 0)
- return -EINVAL;
+ ret = kstrtou16(buf, 0, &num_vfs);
+ if (ret < 0)
+ return ret;
+
+ if (num_vfs > pci_sriov_get_totalvfs(pdev))
+ return -ERANGE;
+
+ if (num_vfs == pdev->sriov->num_VFs)
+ return count; /* no change */
/* is PF driver loaded w/callback */
if (!pdev->driver || !pdev->driver->sriov_configure) {
- dev_info(&pdev->dev,
- "Driver doesn't support SRIOV configuration via sysfs\n");
+ dev_info(&pdev->dev, "Driver doesn't support SRIOV configuration via sysfs\n");
return -ENOSYS;
}
- /* if enabling vf's ... */
- total = pci_sriov_get_totalvfs(pdev);
- /* Requested VFs to enable < totalvfs and none enabled already */
- if ((num_vfs > 0) && (num_vfs <= total)) {
- if (pdev->sriov->num_VFs == 0) {
- num_vfs_enabled =
- pdev->driver->sriov_configure(pdev, num_vfs);
- if ((num_vfs_enabled >= 0) &&
- (num_vfs_enabled != num_vfs)) {
- dev_warn(&pdev->dev,
- "Only %d VFs enabled\n",
- num_vfs_enabled);
- return count;
- } else if (num_vfs_enabled < 0)
- /* error code from driver callback */
- return num_vfs_enabled;
- } else if (num_vfs == pdev->sriov->num_VFs) {
- dev_warn(&pdev->dev,
- "%d VFs already enabled; no enable action taken\n",
- num_vfs);
- return count;
- } else {
- dev_warn(&pdev->dev,
- "%d VFs already enabled. Disable before enabling %d VFs\n",
- pdev->sriov->num_VFs, num_vfs);
- return -EINVAL;
- }
+ if (num_vfs == 0) {
+ /* disable VFs */
+ ret = pdev->driver->sriov_configure(pdev, 0);
+ if (ret < 0)
+ return ret;
+ return count;
}
- /* disable vfs */
- if (num_vfs == 0) {
- if (pdev->sriov->num_VFs != 0) {
- ret = pdev->driver->sriov_configure(pdev, 0);
- return ret ? ret : count;
- } else {
- dev_warn(&pdev->dev,
- "All VFs disabled; no disable action taken\n");
- return count;
- }
+ /* enable VFs */
+ if (pdev->sriov->num_VFs) {
+ dev_warn(&pdev->dev, "%d VFs already enabled. Disable before enabling %d VFs\n",
+ pdev->sriov->num_VFs, num_vfs);
+ return -EBUSY;
}
- dev_err(&pdev->dev,
- "Invalid value for number of VFs to enable: %d\n", num_vfs);
+ ret = pdev->driver->sriov_configure(pdev, num_vfs);
+ if (ret < 0)
+ return ret;
- return -EINVAL;
+ if (ret != num_vfs)
+ dev_warn(&pdev->dev, "%d VFs requested; only %d enabled\n",
+ num_vfs, ret);
+
+ return count;
}
static struct device_attribute sriov_totalvfs_attr = __ATTR_RO(sriov_totalvfs);
return 0;
}
+static int pci_dev_pme_poll(struct pci_dev *pdev, void *data)
+{
+ bool *pme_poll = data;
+
+ if (pdev->pme_poll)
+ *pme_poll = true;
+ return 0;
+}
+
static int pcie_port_runtime_idle(struct device *dev)
{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ bool pme_poll = false;
+
+ /*
+ * If any subordinate device needs pme poll, we should keep
+ * the port in D0, because we need port in D0 to poll it.
+ */
+ pci_walk_bus(pdev->subordinate, pci_dev_pme_poll, &pme_poll);
/* Delay for a short while to prevent too frequent suspend/resume */
- pm_schedule_suspend(dev, 10);
+ if (!pme_poll)
+ pm_schedule_suspend(dev, 10);
return -EBUSY;
}
#else
if (PCI_FUNC(dev->devfn))
return;
/*
- * RICOH 0xe823 SD/MMC card reader fails to recognize
+ * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize
* certain types of SD/MMC cards. Lowering the SD base
* clock frequency from 200Mhz to 50Mhz fixes this issue.
*
* 0xf9 - Key register for 0x150
* 0xfc - key register for 0xe1
*/
- if (dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
+ if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 ||
+ dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
pci_write_config_byte(dev, 0xf9, 0xfc);
pci_write_config_byte(dev, 0x150, 0x10);
pci_write_config_byte(dev, 0xf9, 0x00);
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
+DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
#endif /*CONFIG_MMC_RICOH_MMC*/
DA9055_TWDSCALE_MASK,
da9055_wdt_maps[i].reg_val <<
DA9055_TWDSCALE_SHIFT);
- if (ret < 0)
+ if (ret < 0) {
dev_err(da9055->dev,
"Failed to update timescale bit, %d\n", ret);
+ return ret;
+ }
wdt_dev->timeout = timeout;
- return ret;
+ return 0;
}
static int da9055_wdt_ping(struct watchdog_device *wdt_dev)
{
struct da9055_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
struct da9055 *da9055 = driver_data->da9055;
- int ret;
/*
* We have a minimum time for watchdog window called TWDMIN. A write
mdelay(DA9055_TWDMIN);
/* Reset the watchdog timer */
- ret = da9055_reg_update(da9055, DA9055_REG_CONTROL_E,
- DA9055_WATCHDOG_MASK, 1);
-
- return ret;
+ return da9055_reg_update(da9055, DA9055_REG_CONTROL_E,
+ DA9055_WATCHDOG_MASK, 1);
}
static void da9055_wdt_release_resources(struct kref *r)
{
- struct da9055_wdt_data *driver_data =
- container_of(r, struct da9055_wdt_data, kref);
-
- kfree(driver_data);
}
static void da9055_wdt_ref(struct watchdog_device *wdt_dev)
{
struct watchdog_device *wdog = platform_get_drvdata(pdev);
struct omap_wdt_dev *wdev = watchdog_get_drvdata(wdog);
- struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pm_runtime_disable(wdev->dev);
watchdog_unregister_device(wdog);
#define twl4030_wdt_resume NULL
#endif
+static const struct of_device_id twl_wdt_of_match[] = {
+ { .compatible = "ti,twl4030-wdt", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, twl_wdt_of_match);
+
static struct platform_driver twl4030_wdt_driver = {
.probe = twl4030_wdt_probe,
.remove = twl4030_wdt_remove,
.suspend = twl4030_wdt_suspend,
.resume = twl4030_wdt_resume,
.driver = {
- .owner = THIS_MODULE,
- .name = "twl4030_wdt",
+ .owner = THIS_MODULE,
+ .name = "twl4030_wdt",
+ .of_match_table = twl_wdt_of_match,
},
};
* @src: Source location for the filename to encode
* @src_size: Size of the source in bytes
*/
-void ecryptfs_encode_for_filename(unsigned char *dst, size_t *dst_size,
+static void ecryptfs_encode_for_filename(unsigned char *dst, size_t *dst_size,
unsigned char *src, size_t src_size)
{
size_t num_blocks;
void ecryptfs_destroy_kthread(void)
{
- struct ecryptfs_open_req *req;
+ struct ecryptfs_open_req *req, *tmp;
mutex_lock(&ecryptfs_kthread_ctl.mux);
ecryptfs_kthread_ctl.flags |= ECRYPTFS_KTHREAD_ZOMBIE;
- list_for_each_entry(req, &ecryptfs_kthread_ctl.req_list,
- kthread_ctl_list) {
+ list_for_each_entry_safe(req, tmp, &ecryptfs_kthread_ctl.req_list,
+ kthread_ctl_list) {
list_del(&req->kthread_ctl_list);
*req->lower_file = ERR_PTR(-EIO);
complete(&req->done);
if (prev_page_end_size
>= i_size_read(page->mapping->host)) {
zero_user(page, 0, PAGE_CACHE_SIZE);
- } else {
+ SetPageUptodate(page);
+ } else if (len < PAGE_CACHE_SIZE) {
rc = ecryptfs_decrypt_page(page);
if (rc) {
printk(KERN_ERR "%s: Error decrypting "
ClearPageUptodate(page);
goto out;
}
+ SetPageUptodate(page);
}
- SetPageUptodate(page);
}
}
/* If creating a page or more of holes, zero them out via truncate.
}
goto out;
}
+ if (!PageUptodate(page)) {
+ if (copied < PAGE_CACHE_SIZE) {
+ rc = 0;
+ goto out;
+ }
+ SetPageUptodate(page);
+ }
/* Fills in zeros if 'to' goes beyond inode size */
rc = fill_zeros_to_end_of_page(page, to);
if (rc) {
* otherwise we might miss an event that happens between the
* f_op->poll() call and the new event set registering.
*/
- epi->event.events = event->events;
+ epi->event.events = event->events; /* need barrier below */
pt._key = event->events;
epi->event.data = event->data; /* protected by mtx */
if (epi->event.events & EPOLLWAKEUP) {
ep_destroy_wakeup_source(epi);
}
+ /*
+ * The following barrier has two effects:
+ *
+ * 1) Flush epi changes above to other CPUs. This ensures
+ * we do not miss events from ep_poll_callback if an
+ * event occurs immediately after we call f_op->poll().
+ * We need this because we did not take ep->lock while
+ * changing epi above (but ep_poll_callback does take
+ * ep->lock).
+ *
+ * 2) We also need to ensure we do not miss _past_ events
+ * when calling f_op->poll(). This barrier also
+ * pairs with the barrier in wq_has_sleeper (see
+ * comments for wq_has_sleeper).
+ *
+ * This barrier will now guarantee ep_poll_callback or f_op->poll
+ * (or both) will notice the readiness of an item.
+ */
+ smp_mb();
+
/*
* Get current event bits. We can safely use the file* here because
* its usage count has been increased by the caller of this function.
* removes index from the index block.
*/
static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
- struct ext4_ext_path *path)
+ struct ext4_ext_path *path, int depth)
{
int err;
ext4_fsblk_t leaf;
/* free index block */
- path--;
+ depth--;
+ path = path + depth;
leaf = ext4_idx_pblock(path->p_idx);
if (unlikely(path->p_hdr->eh_entries == 0)) {
EXT4_ERROR_INODE(inode, "path->p_hdr->eh_entries == 0");
ext4_free_blocks(handle, inode, NULL, leaf, 1,
EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET);
+
+ while (--depth >= 0) {
+ if (path->p_idx != EXT_FIRST_INDEX(path->p_hdr))
+ break;
+ path--;
+ err = ext4_ext_get_access(handle, inode, path);
+ if (err)
+ break;
+ path->p_idx->ei_block = (path+1)->p_idx->ei_block;
+ err = ext4_ext_dirty(handle, inode, path);
+ if (err)
+ break;
+ }
return err;
}
/* if this leaf is free, then we should
* remove it from index block above */
if (err == 0 && eh->eh_entries == 0 && path[depth].p_bh != NULL)
- err = ext4_ext_rm_idx(handle, inode, path + depth);
+ err = ext4_ext_rm_idx(handle, inode, path, depth);
out:
return err;
/* index is empty, remove it;
* handle must be already prepared by the
* truncatei_leaf() */
- err = ext4_ext_rm_idx(handle, inode, path + i);
+ err = ext4_ext_rm_idx(handle, inode, path, i);
}
/* root level has p_bh == NULL, brelse() eats this */
brelse(path[i].p_bh);
/* Unaligned direct AIO must be serialized; see comment above */
if (unaligned_aio) {
- static unsigned long unaligned_warn_time;
-
- /* Warn about this once per day */
- if (printk_timed_ratelimit(&unaligned_warn_time, 60*60*24*HZ))
- ext4_msg(inode->i_sb, KERN_WARNING,
- "Unaligned AIO/DIO on inode %ld by %s; "
- "performance will be poor.",
- inode->i_ino, current->comm);
mutex_lock(ext4_aio_mutex(inode));
ext4_unwritten_wait(inode);
}
*
* What we do is just kick off a commit and wait on it. This will snapshot the
* inode to disk.
- *
- * i_mutex lock is held when entering and exiting this function
*/
int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
static void ext4_invalidatepage(struct page *page, unsigned long offset)
{
- journal_t *journal = EXT4_JOURNAL(page->mapping->host);
-
trace_ext4_invalidatepage(page, offset);
/*
*/
if (ext4_should_dioread_nolock(page->mapping->host))
ext4_invalidatepage_free_endio(page, offset);
+
+ /* No journalling happens on data buffers when this function is used */
+ WARN_ON(page_has_buffers(page) && buffer_jbd(page_buffers(page)));
+
+ block_invalidatepage(page, offset);
+}
+
+static int __ext4_journalled_invalidatepage(struct page *page,
+ unsigned long offset)
+{
+ journal_t *journal = EXT4_JOURNAL(page->mapping->host);
+
+ trace_ext4_journalled_invalidatepage(page, offset);
+
/*
* If it's a full truncate we just forget about the pending dirtying
*/
if (offset == 0)
ClearPageChecked(page);
- if (journal)
- jbd2_journal_invalidatepage(journal, page, offset);
- else
- block_invalidatepage(page, offset);
+ return jbd2_journal_invalidatepage(journal, page, offset);
+}
+
+/* Wrapper for aops... */
+static void ext4_journalled_invalidatepage(struct page *page,
+ unsigned long offset)
+{
+ WARN_ON(__ext4_journalled_invalidatepage(page, offset) < 0);
}
static int ext4_releasepage(struct page *page, gfp_t wait)
.write_end = ext4_journalled_write_end,
.set_page_dirty = ext4_journalled_set_page_dirty,
.bmap = ext4_bmap,
- .invalidatepage = ext4_invalidatepage,
+ .invalidatepage = ext4_journalled_invalidatepage,
.releasepage = ext4_releasepage,
.direct_IO = ext4_direct_IO,
.is_partially_uptodate = block_is_partially_uptodate,
return err;
}
+/*
+ * In data=journal mode ext4_journalled_invalidatepage() may fail to invalidate
+ * buffers that are attached to a page stradding i_size and are undergoing
+ * commit. In that case we have to wait for commit to finish and try again.
+ */
+static void ext4_wait_for_tail_page_commit(struct inode *inode)
+{
+ struct page *page;
+ unsigned offset;
+ journal_t *journal = EXT4_SB(inode->i_sb)->s_journal;
+ tid_t commit_tid = 0;
+ int ret;
+
+ offset = inode->i_size & (PAGE_CACHE_SIZE - 1);
+ /*
+ * All buffers in the last page remain valid? Then there's nothing to
+ * do. We do the check mainly to optimize the common PAGE_CACHE_SIZE ==
+ * blocksize case
+ */
+ if (offset > PAGE_CACHE_SIZE - (1 << inode->i_blkbits))
+ return;
+ while (1) {
+ page = find_lock_page(inode->i_mapping,
+ inode->i_size >> PAGE_CACHE_SHIFT);
+ if (!page)
+ return;
+ ret = __ext4_journalled_invalidatepage(page, offset);
+ unlock_page(page);
+ page_cache_release(page);
+ if (ret != -EBUSY)
+ return;
+ commit_tid = 0;
+ read_lock(&journal->j_state_lock);
+ if (journal->j_committing_transaction)
+ commit_tid = journal->j_committing_transaction->t_tid;
+ read_unlock(&journal->j_state_lock);
+ if (commit_tid)
+ jbd2_log_wait_commit(journal, commit_tid);
+ }
+}
+
/*
* ext4_setattr()
*
}
if (attr->ia_valid & ATTR_SIZE) {
- if (attr->ia_size != i_size_read(inode)) {
- truncate_setsize(inode, attr->ia_size);
- /* Inode size will be reduced, wait for dio in flight.
- * Temporarily disable dioread_nolock to prevent
- * livelock. */
+ if (attr->ia_size != inode->i_size) {
+ loff_t oldsize = inode->i_size;
+
+ i_size_write(inode, attr->ia_size);
+ /*
+ * Blocks are going to be removed from the inode. Wait
+ * for dio in flight. Temporarily disable
+ * dioread_nolock to prevent livelock.
+ */
if (orphan) {
- ext4_inode_block_unlocked_dio(inode);
- inode_dio_wait(inode);
- ext4_inode_resume_unlocked_dio(inode);
+ if (!ext4_should_journal_data(inode)) {
+ ext4_inode_block_unlocked_dio(inode);
+ inode_dio_wait(inode);
+ ext4_inode_resume_unlocked_dio(inode);
+ } else
+ ext4_wait_for_tail_page_commit(inode);
}
+ /*
+ * Truncate pagecache after we've waited for commit
+ * in data=journal mode to make pages freeable.
+ */
+ truncate_pagecache(inode, oldsize, inode->i_size);
}
ext4_truncate(inode);
}
struct ext4_iloc iloc;
int err = 0;
- if (!EXT4_SB(inode->i_sb)->s_journal)
+ if ((!EXT4_SB(inode->i_sb)->s_journal) &&
+ !(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS))
return 0;
mutex_lock(&EXT4_SB(inode->i_sb)->s_orphan_lock);
unsigned int *journal_ioprio,
int is_remount)
{
-#ifdef CONFIG_QUOTA
struct ext4_sb_info *sbi = EXT4_SB(sb);
-#endif
char *p;
substring_t args[MAX_OPT_ARGS];
int token;
}
}
#endif
+ if (test_opt(sb, DIOREAD_NOLOCK)) {
+ int blocksize =
+ BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
+
+ if (blocksize < PAGE_CACHE_SIZE) {
+ ext4_msg(sb, KERN_ERR, "can't mount with "
+ "dioread_nolock if block size != PAGE_SIZE");
+ return 0;
+ }
+ }
return 1;
}
__func__, inode->i_ino, inode->i_size);
jbd_debug(2, "truncating inode %lu to %lld bytes\n",
inode->i_ino, inode->i_size);
+ mutex_lock(&inode->i_mutex);
ext4_truncate(inode);
+ mutex_unlock(&inode->i_mutex);
nr_truncates++;
} else {
ext4_msg(sb, KERN_DEBUG,
memset(buf, 0, PAGE_SIZE);
cond_resched();
}
+ /* Add the journal blocks as well */
+ if (sbi->s_journal)
+ overhead += EXT4_B2C(sbi, sbi->s_journal->j_maxlen);
+
sbi->s_overhead = overhead;
smp_wmb();
free_page((unsigned long) buf);
clear_opt(sb, DELALLOC);
}
- blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
- if (test_opt(sb, DIOREAD_NOLOCK)) {
- if (blocksize < PAGE_SIZE) {
- ext4_msg(sb, KERN_ERR, "can't mount with "
- "dioread_nolock if block size != PAGE_SIZE");
- goto failed_mount;
- }
- }
-
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
(test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
if (!ext4_feature_set_ok(sb, (sb->s_flags & MS_RDONLY)))
goto failed_mount;
+ blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
if (blocksize < EXT4_MIN_BLOCK_SIZE ||
blocksize > EXT4_MAX_BLOCK_SIZE) {
ext4_msg(sb, KERN_ERR,
}
ext4_setup_system_zone(sb);
- if (sbi->s_journal == NULL)
+ if (sbi->s_journal == NULL && !(old_sb_flags & MS_RDONLY))
ext4_commit_super(sb, 1);
#ifdef CONFIG_QUOTA
if (!new_transaction)
goto alloc_transaction;
write_lock(&journal->j_state_lock);
- if (!journal->j_running_transaction) {
+ if (!journal->j_running_transaction &&
+ !journal->j_barrier_count) {
jbd2_get_transaction(journal, new_transaction);
new_transaction = NULL;
}
BUFFER_TRACE(bh, "entry");
-retry:
/*
* It is safe to proceed here without the j_list_lock because the
* buffers cannot be stolen by try_to_free_buffers as long as we are
* for commit and try again.
*/
if (partial_page) {
- tid_t tid = journal->j_committing_transaction->t_tid;
-
jbd2_journal_put_journal_head(jh);
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
write_unlock(&journal->j_state_lock);
- jbd2_log_wait_commit(journal, tid);
- goto retry;
+ return -EBUSY;
}
/*
* OK, buffer won't be reachable after truncate. We just set
* @page: page to flush
* @offset: length of page to invalidate.
*
- * Reap page buffers containing data after offset in page.
- *
+ * Reap page buffers containing data after offset in page. Can return -EBUSY
+ * if buffers are part of the committing transaction and the page is straddling
+ * i_size. Caller then has to wait for current commit and try again.
*/
-void jbd2_journal_invalidatepage(journal_t *journal,
- struct page *page,
- unsigned long offset)
+int jbd2_journal_invalidatepage(journal_t *journal,
+ struct page *page,
+ unsigned long offset)
{
struct buffer_head *head, *bh, *next;
unsigned int curr_off = 0;
int may_free = 1;
+ int ret = 0;
if (!PageLocked(page))
BUG();
if (!page_has_buffers(page))
- return;
+ return 0;
/* We will potentially be playing with lists other than just the
* data lists (especially for journaled data mode), so be
if (offset <= curr_off) {
/* This block is wholly outside the truncation point */
lock_buffer(bh);
- may_free &= journal_unmap_buffer(journal, bh,
- offset > 0);
+ ret = journal_unmap_buffer(journal, bh, offset > 0);
unlock_buffer(bh);
+ if (ret < 0)
+ return ret;
+ may_free &= ret;
}
curr_off = next_off;
bh = next;
if (may_free && try_to_free_buffers(page))
J_ASSERT(!page_has_buffers(page));
}
+ return 0;
}
/*
walk.mm = mm;
pol = get_vma_policy(task, vma, vma->vm_start);
- mpol_to_str(buffer, sizeof(buffer), pol, 0);
+ mpol_to_str(buffer, sizeof(buffer), pol);
mpol_cond_put(pol);
seq_printf(m, "%08lx %s", vma->vm_start, buffer);
# Top-level Makefile calls into asm-$(ARCH)
# List only non-arch directories below
-header-y += linux/
-header-y += sound/
-header-y += rdma/
header-y += video/
header-y += scsi/
+++ /dev/null
-header-y += dvb/
-header-y += hdlc/
-header-y += hsi/
-header-y += raid/
-header-y += usb/
extern int jbd2_journal_dirty_metadata (handle_t *, struct buffer_head *);
extern int jbd2_journal_forget (handle_t *, struct buffer_head *);
extern void journal_sync_buffer (struct buffer_head *);
-extern void jbd2_journal_invalidatepage(journal_t *,
+extern int jbd2_journal_invalidatepage(journal_t *,
struct page *, unsigned long);
extern int jbd2_journal_try_to_free_buffers(journal_t *, struct page *, gfp_t);
extern int jbd2_journal_stop(handle_t *);
struct shared_policy {
struct rb_root root;
- struct mutex mutex;
+ spinlock_t lock;
};
void mpol_shared_policy_init(struct shared_policy *sp, struct mempolicy *mpol);
#ifdef CONFIG_TMPFS
-extern int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context);
+extern int mpol_parse_str(char *str, struct mempolicy **mpol);
#endif
-extern int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol,
- int no_context);
+extern int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol);
/* Check if a vma is migratable */
static inline int vma_migratable(struct vm_area_struct *vma)
}
#ifdef CONFIG_TMPFS
-static inline int mpol_parse_str(char *str, struct mempolicy **mpol,
- int no_context)
+static inline int mpol_parse_str(char *str, struct mempolicy **mpol)
{
return 1; /* error */
}
#endif
-static inline int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol,
- int no_context)
+static inline int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol)
{
return 0;
}
#define PCI_DEVICE_ID_RICOH_RL5C476 0x0476
#define PCI_DEVICE_ID_RICOH_RL5C478 0x0478
#define PCI_DEVICE_ID_RICOH_R5C822 0x0822
+#define PCI_DEVICE_ID_RICOH_R5CE822 0xe822
#define PCI_DEVICE_ID_RICOH_R5CE823 0xe823
#define PCI_DEVICE_ID_RICOH_R5C832 0x0832
#define PCI_DEVICE_ID_RICOH_R5C843 0x0843
TP_ARGS(page)
);
-TRACE_EVENT(ext4_invalidatepage,
+DECLARE_EVENT_CLASS(ext4_invalidatepage_op,
TP_PROTO(struct page *page, unsigned long offset),
TP_ARGS(page, offset),
(unsigned long) __entry->index, __entry->offset)
);
+DEFINE_EVENT(ext4_invalidatepage_op, ext4_invalidatepage,
+ TP_PROTO(struct page *page, unsigned long offset),
+
+ TP_ARGS(page, offset)
+);
+
+DEFINE_EVENT(ext4_invalidatepage_op, ext4_journalled_invalidatepage,
+ TP_PROTO(struct page *page, unsigned long offset),
+
+ TP_ARGS(page, offset)
+);
+
TRACE_EVENT(ext4_discard_blocks,
TP_PROTO(struct super_block *sb, unsigned long long blk,
unsigned long long count),
#define PCI_EXP_DEVSTA_TRPND 0x20 /* Transactions Pending */
#define PCI_EXP_LNKCAP 12 /* Link Capabilities */
#define PCI_EXP_LNKCAP_SLS 0x0000000f /* Supported Link Speeds */
+#define PCI_EXP_LNKCAP_SLS_2_5GB 0x1 /* LNKCAP2 SLS Vector bit 0 (2.5GT/s) */
+#define PCI_EXP_LNKCAP_SLS_5_0GB 0x2 /* LNKCAP2 SLS Vector bit 1 (5.0GT/s) */
#define PCI_EXP_LNKCAP_MLW 0x000003f0 /* Maximum Link Width */
#define PCI_EXP_LNKCAP_ASPMS 0x00000c00 /* ASPM Support */
#define PCI_EXP_LNKCAP_L0SEL 0x00007000 /* L0s Exit Latency */
*/
/* lookup first element intersecting start-end */
-/* Caller holds sp->mutex */
+/* Caller holds sp->lock */
static struct sp_node *
sp_lookup(struct shared_policy *sp, unsigned long start, unsigned long end)
{
if (!sp->root.rb_node)
return NULL;
- mutex_lock(&sp->mutex);
+ spin_lock(&sp->lock);
sn = sp_lookup(sp, idx, idx+1);
if (sn) {
mpol_get(sn->policy);
pol = sn->policy;
}
- mutex_unlock(&sp->mutex);
+ spin_unlock(&sp->lock);
return pol;
}
sp_free(n);
}
+static void sp_node_init(struct sp_node *node, unsigned long start,
+ unsigned long end, struct mempolicy *pol)
+{
+ node->start = start;
+ node->end = end;
+ node->policy = pol;
+}
+
static struct sp_node *sp_alloc(unsigned long start, unsigned long end,
struct mempolicy *pol)
{
return NULL;
}
newpol->flags |= MPOL_F_SHARED;
-
- n->start = start;
- n->end = end;
- n->policy = newpol;
+ sp_node_init(n, start, end, newpol);
return n;
}
unsigned long end, struct sp_node *new)
{
struct sp_node *n;
+ struct sp_node *n_new = NULL;
+ struct mempolicy *mpol_new = NULL;
int ret = 0;
- mutex_lock(&sp->mutex);
+restart:
+ spin_lock(&sp->lock);
n = sp_lookup(sp, start, end);
/* Take care of old policies in the same range. */
while (n && n->start < end) {
} else {
/* Old policy spanning whole new range. */
if (n->end > end) {
- struct sp_node *new2;
- new2 = sp_alloc(end, n->end, n->policy);
- if (!new2) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!n_new)
+ goto alloc_new;
+
+ *mpol_new = *n->policy;
+ atomic_set(&mpol_new->refcnt, 1);
+ sp_node_init(n_new, n->end, end, mpol_new);
+ sp_insert(sp, n_new);
n->end = start;
- sp_insert(sp, new2);
+ n_new = NULL;
+ mpol_new = NULL;
break;
} else
n->end = start;
}
if (new)
sp_insert(sp, new);
-out:
- mutex_unlock(&sp->mutex);
+ spin_unlock(&sp->lock);
+ ret = 0;
+
+err_out:
+ if (mpol_new)
+ mpol_put(mpol_new);
+ if (n_new)
+ kmem_cache_free(sn_cache, n_new);
+
return ret;
+
+alloc_new:
+ spin_unlock(&sp->lock);
+ ret = -ENOMEM;
+ n_new = kmem_cache_alloc(sn_cache, GFP_KERNEL);
+ if (!n_new)
+ goto err_out;
+ mpol_new = kmem_cache_alloc(policy_cache, GFP_KERNEL);
+ if (!mpol_new)
+ goto err_out;
+ goto restart;
}
/**
int ret;
sp->root = RB_ROOT; /* empty tree == default mempolicy */
- mutex_init(&sp->mutex);
+ spin_lock_init(&sp->lock);
if (mpol) {
struct vm_area_struct pvma;
if (!p->root.rb_node)
return;
- mutex_lock(&p->mutex);
+ spin_lock(&p->lock);
next = rb_first(&p->root);
while (next) {
n = rb_entry(next, struct sp_node, nd);
next = rb_next(&n->nd);
sp_delete(p, n);
}
- mutex_unlock(&p->mutex);
+ spin_unlock(&p->lock);
}
#ifdef CONFIG_NUMA_BALANCING
*/
/*
- * "local" is pseudo-policy: MPOL_PREFERRED with MPOL_F_LOCAL flag
- * Used only for mpol_parse_str() and mpol_to_str()
+ * "local" is implemented internally by MPOL_PREFERRED with MPOL_F_LOCAL flag.
*/
static const char * const policy_modes[] =
{
#ifdef CONFIG_TMPFS
/**
- * mpol_parse_str - parse string to mempolicy
+ * mpol_parse_str - parse string to mempolicy, for tmpfs mpol mount option.
* @str: string containing mempolicy to parse
* @mpol: pointer to struct mempolicy pointer, returned on success.
- * @no_context: flag whether to "contextualize" the mempolicy
*
* Format of input:
* <mode>[=<flags>][:<nodelist>]
*
- * if @no_context is true, save the input nodemask in w.user_nodemask in
- * the returned mempolicy. This will be used to "clone" the mempolicy in
- * a specific context [cpuset] at a later time. Used to parse tmpfs mpol
- * mount option. Note that if 'static' or 'relative' mode flags were
- * specified, the input nodemask will already have been saved. Saving
- * it again is redundant, but safe.
- *
* On success, returns 0, else 1
*/
-int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
+int mpol_parse_str(char *str, struct mempolicy **mpol)
{
struct mempolicy *new = NULL;
unsigned short mode;
- unsigned short uninitialized_var(mode_flags);
+ unsigned short mode_flags;
nodemask_t nodes;
char *nodelist = strchr(str, ':');
char *flags = strchr(str, '=');
if (IS_ERR(new))
goto out;
- if (no_context) {
- /* save for contextualization */
- new->w.user_nodemask = nodes;
- } else {
- int ret;
- NODEMASK_SCRATCH(scratch);
- if (scratch) {
- task_lock(current);
- ret = mpol_set_nodemask(new, &nodes, scratch);
- task_unlock(current);
- } else
- ret = -ENOMEM;
- NODEMASK_SCRATCH_FREE(scratch);
- if (ret) {
- mpol_put(new);
- goto out;
- }
- }
+ /*
+ * Save nodes for mpol_to_str() to show the tmpfs mount options
+ * for /proc/mounts, /proc/pid/mounts and /proc/pid/mountinfo.
+ */
+ if (mode != MPOL_PREFERRED)
+ new->v.nodes = nodes;
+ else if (nodelist)
+ new->v.preferred_node = first_node(nodes);
+ else
+ new->flags |= MPOL_F_LOCAL;
+
+ /*
+ * Save nodes for contextualization: this will be used to "clone"
+ * the mempolicy in a specific context [cpuset] at a later time.
+ */
+ new->w.user_nodemask = nodes;
+
err = 0;
out:
* @buffer: to contain formatted mempolicy string
* @maxlen: length of @buffer
* @pol: pointer to mempolicy to be formatted
- * @no_context: "context free" mempolicy - use nodemask in w.user_nodemask
*
* Convert a mempolicy into a string.
* Returns the number of characters in buffer (if positive)
* or an error (negative)
*/
-int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol, int no_context)
+int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol)
{
char *p = buffer;
int l;
case MPOL_PREFERRED:
nodes_clear(nodes);
if (flags & MPOL_F_LOCAL)
- mode = MPOL_LOCAL; /* pseudo-policy */
+ mode = MPOL_LOCAL;
else
node_set(pol->v.preferred_node, nodes);
break;
case MPOL_BIND:
/* Fall through */
case MPOL_INTERLEAVE:
- if (no_context)
- nodes = pol->w.user_nodemask;
- else
- nodes = pol->v.nodes;
+ nodes = pol->v.nodes;
break;
default:
if (!mpol || mpol->mode == MPOL_DEFAULT)
return; /* show nothing */
- mpol_to_str(buffer, sizeof(buffer), mpol, 1);
+ mpol_to_str(buffer, sizeof(buffer), mpol);
seq_printf(seq, ",mpol=%s", buffer);
}
if (!gid_valid(sbinfo->gid))
goto bad_val;
} else if (!strcmp(this_char,"mpol")) {
- if (mpol_parse_str(value, &sbinfo->mpol, 1))
+ if (mpol_parse_str(value, &sbinfo->mpol))
goto bad_val;
} else {
printk(KERN_ERR "tmpfs: Bad mount option %s\n",
{
/* reset connection, out_queue, msg_ and connect_seq */
/* discard existing out_queue and msg_seq */
+ dout("reset_connection %p\n", con);
ceph_msg_remove_list(&con->out_queue);
ceph_msg_remove_list(&con->out_sent);
mutex_lock(&con->mutex);
dout("con_open %p %s\n", con, ceph_pr_addr(&addr->in_addr));
- BUG_ON(con->state != CON_STATE_CLOSED);
+ WARN_ON(con->state != CON_STATE_CLOSED);
con->state = CON_STATE_PREOPEN;
con->peer_name.type = (__u8) entity_type;
return 0;
}
-static void fail_protocol(struct ceph_connection *con)
-{
- reset_connection(con);
- BUG_ON(con->state != CON_STATE_NEGOTIATING);
- con->state = CON_STATE_CLOSED;
-}
-
static int process_connect(struct ceph_connection *con)
{
u64 sup_feat = con->msgr->supported_features;
ceph_pr_addr(&con->peer_addr.in_addr),
sup_feat, server_feat, server_feat & ~sup_feat);
con->error_msg = "missing required protocol features";
- fail_protocol(con);
+ reset_connection(con);
return -1;
case CEPH_MSGR_TAG_BADPROTOVER:
le32_to_cpu(con->out_connect.protocol_version),
le32_to_cpu(con->in_reply.protocol_version));
con->error_msg = "protocol version mismatch";
- fail_protocol(con);
+ reset_connection(con);
return -1;
case CEPH_MSGR_TAG_BADAUTHORIZER:
ceph_pr_addr(&con->peer_addr.in_addr),
req_feat, server_feat, req_feat & ~server_feat);
con->error_msg = "missing required protocol features";
- fail_protocol(con);
+ reset_connection(con);
return -1;
}
- BUG_ON(con->state != CON_STATE_NEGOTIATING);
+ WARN_ON(con->state != CON_STATE_NEGOTIATING);
con->state = CON_STATE_OPEN;
con->peer_global_seq = le32_to_cpu(con->in_reply.global_seq);
if (ret < 0)
goto out;
- BUG_ON(con->state != CON_STATE_CONNECTING);
con->state = CON_STATE_NEGOTIATING;
/*
goto more;
}
- BUG_ON(con->state != CON_STATE_OPEN);
+ WARN_ON(con->state != CON_STATE_OPEN);
if (con->in_base_pos < 0) {
/*
dout("fault %p state %lu to peer %s\n",
con, con->state, ceph_pr_addr(&con->peer_addr.in_addr));
- BUG_ON(con->state != CON_STATE_CONNECTING &&
+ WARN_ON(con->state != CON_STATE_CONNECTING &&
con->state != CON_STATE_NEGOTIATING &&
con->state != CON_STATE_OPEN);
* Requeue requests whose mapping to an OSD has changed. If requests map to
* no osd, request a new map.
*
- * Caller should hold map_sem for read and request_mutex.
+ * Caller should hold map_sem for read.
*/
static void kick_requests(struct ceph_osd_client *osdc, int force_resend)
{
for (p = rb_first(&osdc->requests); p; ) {
req = rb_entry(p, struct ceph_osd_request, r_node);
p = rb_next(p);
+
+ /*
+ * For linger requests that have not yet been
+ * registered, move them to the linger list; they'll
+ * be sent to the osd in the loop below. Unregister
+ * the request before re-registering it as a linger
+ * request to ensure the __map_request() below
+ * will decide it needs to be sent.
+ */
+ if (req->r_linger && list_empty(&req->r_linger_item)) {
+ dout("%p tid %llu restart on osd%d\n",
+ req, req->r_tid,
+ req->r_osd ? req->r_osd->o_osd : -1);
+ __unregister_request(osdc, req);
+ __register_linger_request(osdc, req);
+ continue;
+ }
+
err = __map_request(osdc, req, force_resend);
if (err < 0)
continue; /* error */
req->r_flags |= CEPH_OSD_FLAG_RETRY;
}
}
- if (req->r_linger && list_empty(&req->r_linger_item)) {
- /*
- * register as a linger so that we will
- * re-submit below and get a new tid
- */
- dout("%p tid %llu restart on osd%d\n",
- req, req->r_tid,
- req->r_osd ? req->r_osd->o_osd : -1);
- __register_linger_request(osdc, req);
- __unregister_request(osdc, req);
- }
}
list_for_each_entry_safe(req, nreq, &osdc->req_linger,
dout("linger req=%p req->r_osd=%p\n", req, req->r_osd);
err = __map_request(osdc, req, force_resend);
+ dout("__map_request returned %d\n", err);
if (err == 0)
continue; /* no change and no osd was specified */
if (err < 0)
dout("%d requests for down osds, need new map\n", needmap);
ceph_monc_request_next_osdmap(&osdc->client->monc);
}
+ reset_changed_osds(osdc);
}
osdc->osdmap = newmap;
}
kick_requests(osdc, 0);
- reset_changed_osds(osdc);
} else {
dout("ignoring incremental map %u len %d\n",
epoch, maplen);
$line =~ s/(^|\s)(inline)\b/$1__$2__/g;
$line =~ s/(^|\s)(asm)\b(\s|[(]|$)/$1__$2__$3/g;
$line =~ s/(^|\s|[(])(volatile)\b(\s|[(]|$)/$1__$2__$3/g;
- $line =~ s/#ifndef _UAPI/#ifndef /;
- $line =~ s/#define _UAPI/#define /;
- $line =~ s!#endif /[*] _UAPI!#endif /* !;
+ $line =~ s/#ifndef\s+_UAPI/#ifndef /;
+ $line =~ s/#define\s+_UAPI/#define /;
+ $line =~ s!#endif\s+/[*]\s*_UAPI!#endif /* !;
printf {$out} "%s", $line;
}
close $out;
git.openpandora.org / pandora-kernel.git / commitdiff