{0x409D0E11, "Smart Array 6400 EM", &SA5_access},
{0x40910E11, "Smart Array 6i", &SA5_access},
{0x3225103C, "Smart Array P600", &SA5_access},
+ {0x3223103C, "Smart Array P800", &SA5_access},
+ {0x3234103C, "Smart Array P400", &SA5_access},
{0x3235103C, "Smart Array P400i", &SA5_access},
{0x3211103C, "Smart Array E200i", &SA5_access},
{0x3212103C, "Smart Array E200", &SA5_access},
{0x3214103C, "Smart Array E200i", &SA5_access},
{0x3215103C, "Smart Array E200i", &SA5_access},
{0x3237103C, "Smart Array E500", &SA5_access},
- {0x323d103c, "Smart Array P700M", &SA5_access},
+ {0x3223103C, "Smart Array P800", &SA5_access},
+ {0x3234103C, "Smart Array P400", &SA5_access},
+ {0x323D103C, "Smart Array P700m", &SA5_access},
};
/* How long to wait (in milliseconds) for board to go into simple mode */
int err;
u32 cp;
+ memset(&arg64, 0, sizeof(arg64));
err = 0;
err |=
copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
for (i = 0; i < MAX_CONFIG_WAIT; i++) {
if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
break;
- msleep(10);
+ usleep_range(10000, 20000);
}
}
*board_id = ((subsystem_device_id << 16) & 0xffff0000) |
subsystem_vendor_id;
- for (i = 0; i < ARRAY_SIZE(products); i++) {
+ for (i = 0; i < ARRAY_SIZE(products); i++)
if (*board_id == products[i].board_id)
return i;
- }
dev_warn(&pdev->dev, "unrecognized board ID: 0x%08x, ignoring.\n",
*board_id);
return -ENODEV;
return -ENODEV;
}
- static int __devinit cciss_wait_for_board_ready(ctlr_info_t *h)
+ static int __devinit cciss_wait_for_board_state(struct pci_dev *pdev,
+ void __iomem *vaddr, int wait_for_ready)
+ #define BOARD_READY 1
+ #define BOARD_NOT_READY 0
{
- int i;
+ int i, iterations;
u32 scratchpad;
- for (i = 0; i < CCISS_BOARD_READY_ITERATIONS; i++) {
- scratchpad = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
- if (scratchpad == CCISS_FIRMWARE_READY)
- return 0;
+ if (wait_for_ready)
+ iterations = CCISS_BOARD_READY_ITERATIONS;
+ else
+ iterations = CCISS_BOARD_NOT_READY_ITERATIONS;
+
+ for (i = 0; i < iterations; i++) {
+ scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET);
+ if (wait_for_ready) {
+ if (scratchpad == CCISS_FIRMWARE_READY)
+ return 0;
+ } else {
+ if (scratchpad != CCISS_FIRMWARE_READY)
+ return 0;
+ }
msleep(CCISS_BOARD_READY_POLL_INTERVAL_MSECS);
}
- dev_warn(&h->pdev->dev, "board not ready, timed out.\n");
+ dev_warn(&pdev->dev, "board not ready, timed out.\n");
return -ENODEV;
}
static void __devinit cciss_get_max_perf_mode_cmds(struct ctlr_info *h)
{
h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
+
+ /* Limit commands in memory limited kdump scenario. */
+ if (reset_devices && h->max_commands > 32)
+ h->max_commands = 32;
+
if (h->max_commands < 16) {
dev_warn(&h->pdev->dev, "Controller reports "
"max supported commands of %d, an obvious lie. "
err = -ENOMEM;
goto err_out_free_res;
}
- err = cciss_wait_for_board_ready(h);
+ err = cciss_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
if (err)
goto err_out_free_res;
err = cciss_find_cfgtables(h);
#define cciss_soft_reset_controller(p) cciss_message(p, 1, 0)
#define cciss_noop(p) cciss_message(p, 3, 0)
- static __devinit int cciss_reset_msi(struct pci_dev *pdev)
- {
- /* the #defines are stolen from drivers/pci/msi.h. */
- #define msi_control_reg(base) (base + PCI_MSI_FLAGS)
- #define PCI_MSIX_FLAGS_ENABLE (1 << 15)
-
- int pos;
- u16 control = 0;
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_MSI);
- if (pos) {
- pci_read_config_word(pdev, msi_control_reg(pos), &control);
- if (control & PCI_MSI_FLAGS_ENABLE) {
- dev_info(&pdev->dev, "resetting MSI\n");
- pci_write_config_word(pdev, msi_control_reg(pos), control & ~PCI_MSI_FLAGS_ENABLE);
- }
- }
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
- if (pos) {
- pci_read_config_word(pdev, msi_control_reg(pos), &control);
- if (control & PCI_MSIX_FLAGS_ENABLE) {
- dev_info(&pdev->dev, "resetting MSI-X\n");
- pci_write_config_word(pdev, msi_control_reg(pos), control & ~PCI_MSIX_FLAGS_ENABLE);
- }
- }
-
- return 0;
- }
-
static int cciss_controller_hard_reset(struct pci_dev *pdev,
void * __iomem vaddr, bool use_doorbell)
{
* states or using the doorbell register. */
static __devinit int cciss_kdump_hard_reset_controller(struct pci_dev *pdev)
{
- u16 saved_config_space[32];
u64 cfg_offset;
u32 cfg_base_addr;
u64 cfg_base_addr_index;
void __iomem *vaddr;
unsigned long paddr;
u32 misc_fw_support, active_transport;
- int rc, i;
+ int rc;
CfgTable_struct __iomem *cfgtable;
bool use_doorbell;
u32 board_id;
+ u16 command_register;
/* For controllers as old a the p600, this is very nearly
* the same thing as
* pci_set_power_state(pci_dev, PCI_D0);
* pci_restore_state(pci_dev);
*
- * but we can't use these nice canned kernel routines on
- * kexec, because they also check the MSI/MSI-X state in PCI
- * configuration space and do the wrong thing when it is
- * set/cleared. Also, the pci_save/restore_state functions
- * violate the ordering requirements for restoring the
- * configuration space from the CCISS document (see the
- * comment below). So we roll our own ....
- *
* For controllers newer than the P600, the pci power state
* method of resetting doesn't work so we have another way
* using the doorbell register.
return -ENODEV;
}
- for (i = 0; i < 32; i++)
- pci_read_config_word(pdev, 2*i, &saved_config_space[i]);
+ /* Save the PCI command register */
+ pci_read_config_word(pdev, 4, &command_register);
+ /* Turn the board off. This is so that later pci_restore_state()
+ * won't turn the board on before the rest of config space is ready.
+ */
+ pci_disable_device(pdev);
+ pci_save_state(pdev);
/* find the first memory BAR, so we can find the cfg table */
rc = cciss_pci_find_memory_BAR(pdev, &paddr);
rc = cciss_controller_hard_reset(pdev, vaddr, use_doorbell);
if (rc)
goto unmap_cfgtable;
-
- /* Restore the PCI configuration space. The Open CISS
- * Specification says, "Restore the PCI Configuration
- * Registers, offsets 00h through 60h. It is important to
- * restore the command register, 16-bits at offset 04h,
- * last. Do not restore the configuration status register,
- * 16-bits at offset 06h." Note that the offset is 2*i.
- */
- for (i = 0; i < 32; i++) {
- if (i == 2 || i == 3)
- continue;
- pci_write_config_word(pdev, 2*i, saved_config_space[i]);
+ pci_restore_state(pdev);
+ rc = pci_enable_device(pdev);
+ if (rc) {
+ dev_warn(&pdev->dev, "failed to enable device.\n");
+ goto unmap_cfgtable;
}
- wmb();
- pci_write_config_word(pdev, 4, saved_config_space[2]);
+ pci_write_config_word(pdev, 4, command_register);
/* Some devices (notably the HP Smart Array 5i Controller)
need a little pause here */
msleep(CCISS_POST_RESET_PAUSE_MSECS);
+ /* Wait for board to become not ready, then ready. */
+ dev_info(&pdev->dev, "Waiting for board to become ready.\n");
+ rc = cciss_wait_for_board_state(pdev, vaddr, BOARD_NOT_READY);
+ if (rc) /* Don't bail, might be E500, etc. which can't be reset */
+ dev_warn(&pdev->dev,
+ "failed waiting for board to become not ready\n");
+ rc = cciss_wait_for_board_state(pdev, vaddr, BOARD_READY);
+ if (rc) {
+ dev_warn(&pdev->dev,
+ "failed waiting for board to become ready\n");
+ goto unmap_cfgtable;
+ }
+ dev_info(&pdev->dev, "board ready.\n");
+
/* Controller should be in simple mode at this point. If it's not,
* It means we're on one of those controllers which doesn't support
* the doorbell reset method and on which the PCI power management reset
return 0; /* just try to do the kdump anyhow. */
if (rc)
return -ENODEV;
- if (cciss_reset_msi(pdev))
- return -ENODEV;
/* Now try to get the controller to respond to a no-op */
for (i = 0; i < CCISS_POST_RESET_NOOP_RETRIES; i++) {
}
}
kthread_stop(cciss_scan_thread);
- remove_proc_entry("driver/cciss", NULL);
+ if (proc_cciss)
+ remove_proc_entry("driver/cciss", NULL);
bus_unregister(&cciss_bus_type);
}
#define D_ASSERT(exp) if (!(exp)) \
dev_err(DEV, "ASSERT( " #exp " ) in %s:%d\n", __FILE__, __LINE__)
- #define ERR_IF(exp) if (({ \
- int _b = (exp) != 0; \
- if (_b) dev_err(DEV, "%s: (%s) in %s:%d\n", \
- __func__, #exp, __FILE__, __LINE__); \
- _b; \
+ #define ERR_IF(exp) if (({ \
+ int _b = (exp) != 0; \
+ if (_b) dev_err(DEV, "ASSERT FAILED: %s: (%s) in %s:%d\n", \
+ __func__, #exp, __FILE__, __LINE__); \
+ _b; \
}))
/* Defines to control fault insertion */
/* drbd_epoch flag bits */
enum {
- DE_BARRIER_IN_NEXT_EPOCH_ISSUED,
- DE_BARRIER_IN_NEXT_EPOCH_DONE,
- DE_CONTAINS_A_BARRIER,
DE_HAVE_BARRIER_NUMBER,
- DE_IS_FINISHING,
};
enum epoch_event {
EV_PUT,
EV_GOT_BARRIER_NR,
- EV_BARRIER_DONE,
EV_BECAME_LAST,
EV_CLEANUP = 32, /* used as flag */
};
__EE_CALL_AL_COMPLETE_IO,
__EE_MAY_SET_IN_SYNC,
- /* This epoch entry closes an epoch using a barrier.
- * On sucessful completion, the epoch is released,
- * and the P_BARRIER_ACK send. */
- __EE_IS_BARRIER,
-
/* In case a barrier failed,
* we need to resubmit without the barrier flag. */
__EE_RESUBMITTED,
};
#define EE_CALL_AL_COMPLETE_IO (1<<__EE_CALL_AL_COMPLETE_IO)
#define EE_MAY_SET_IN_SYNC (1<<__EE_MAY_SET_IN_SYNC)
- #define EE_IS_BARRIER (1<<__EE_IS_BARRIER)
#define EE_RESUBMITTED (1<<__EE_RESUBMITTED)
#define EE_WAS_ERROR (1<<__EE_WAS_ERROR)
#define EE_HAS_DIGEST (1<<__EE_HAS_DIGEST)
* Gets cleared when the state.conn
* goes into C_CONNECTED state. */
WRITE_BM_AFTER_RESYNC, /* A kmalloc() during resync failed */
- NO_BARRIER_SUPP, /* underlying block device doesn't implement barriers */
CONSIDER_RESYNC,
- MD_NO_BARRIER, /* meta data device does not support barriers,
- so don't even try */
+ MD_NO_FUA, /* Users wants us to not use FUA/FLUSH on meta data dev */
SUSPEND_IO, /* suspend application io */
BITMAP_IO, /* suspend application io;
once no more io in flight, start bitmap io */
BITMAP_IO_QUEUED, /* Started bitmap IO */
- GO_DISKLESS, /* Disk failed, local_cnt reached zero, we are going diskless */
+ GO_DISKLESS, /* Disk is being detached, on io-error or admin request. */
+ WAS_IO_ERROR, /* Local disk failed returned IO error */
RESYNC_AFTER_NEG, /* Resync after online grow after the attach&negotiate finished. */
NET_CONGESTED, /* The data socket is congested */
WO_none,
WO_drain_io,
WO_bdev_flush,
- WO_bio_barrier
};
struct fifo_buffer {
extern int drbd_bmio_clear_n_write(struct drbd_conf *mdev);
extern int drbd_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), char *why);
extern void drbd_go_diskless(struct drbd_conf *mdev);
+ extern void drbd_ldev_destroy(struct drbd_conf *mdev);
/* Meta data layout
case EP_PASS_ON:
if (!forcedetach) {
if (__ratelimit(&drbd_ratelimit_state))
- dev_err(DEV, "Local IO failed in %s."
- "Passing error on...\n", where);
+ dev_err(DEV, "Local IO failed in %s.\n", where);
break;
}
/* NOTE fall through to detach case if forcedetach set */
case EP_DETACH:
case EP_CALL_HELPER:
+ set_bit(WAS_IO_ERROR, &mdev->flags);
if (mdev->state.disk > D_FAILED) {
_drbd_set_state(_NS(mdev, disk, D_FAILED), CS_HARD, NULL);
- dev_err(DEV, "Local IO failed in %s."
- "Detaching...\n", where);
+ dev_err(DEV,
+ "Local IO failed in %s. Detaching...\n", where);
}
break;
}
static inline sector_t drbd_get_capacity(struct block_device *bdev)
{
/* return bdev ? get_capacity(bdev->bd_disk) : 0; */
- return bdev ? bdev->bd_inode->i_size >> 9 : 0;
+ return bdev ? i_size_read(bdev->bd_inode) >> 9 : 0;
}
/**
__release(local);
D_ASSERT(i >= 0);
if (i == 0) {
+ if (mdev->state.disk == D_DISKLESS)
+ /* even internal references gone, safe to destroy */
+ drbd_ldev_destroy(mdev);
if (mdev->state.disk == D_FAILED)
+ /* all application IO references gone. */
drbd_go_diskless(mdev);
wake_up(&mdev->misc_wait);
}
{
int io_allowed;
+ /* never get a reference while D_DISKLESS */
+ if (mdev->state.disk == D_DISKLESS)
+ return 0;
+
atomic_inc(&mdev->local_cnt);
io_allowed = (mdev->state.disk >= mins);
if (!io_allowed)
{
int r;
- if (test_bit(MD_NO_BARRIER, &mdev->flags))
+ if (test_bit(MD_NO_FUA, &mdev->flags))
return;
r = blkdev_issue_flush(mdev->ldev->md_bdev, GFP_KERNEL, NULL);
if (r) {
- set_bit(MD_NO_BARRIER, &mdev->flags);
+ set_bit(MD_NO_FUA, &mdev->flags);
dev_err(DEV, "meta data flush failed with status %d, disabling md-flushes\n", r);
}
}
ns.conn != C_UNCONNECTED && ns.conn != C_DISCONNECTING && ns.conn <= C_TEAR_DOWN)
ns.conn = os.conn;
+ /* we cannot fail (again) if we already detached */
+ if (ns.disk == D_FAILED && os.disk == D_DISKLESS)
+ ns.disk = D_DISKLESS;
+
+ /* if we are only D_ATTACHING yet,
+ * we can (and should) go directly to D_DISKLESS. */
+ if (ns.disk == D_FAILED && os.disk == D_ATTACHING)
+ ns.disk = D_DISKLESS;
+
/* After C_DISCONNECTING only C_STANDALONE may follow */
if (os.conn == C_DISCONNECTING && ns.conn != C_STANDALONE)
ns.conn = os.conn;
!test_and_set_bit(CONFIG_PENDING, &mdev->flags))
set_bit(DEVICE_DYING, &mdev->flags);
- mdev->state.i = ns.i;
+ /* if we are going -> D_FAILED or D_DISKLESS, grab one extra reference
+ * on the ldev here, to be sure the transition -> D_DISKLESS resp.
+ * drbd_ldev_destroy() won't happen before our corresponding
+ * after_state_ch works run, where we put_ldev again. */
+ if ((os.disk != D_FAILED && ns.disk == D_FAILED) ||
+ (os.disk != D_DISKLESS && ns.disk == D_DISKLESS))
+ atomic_inc(&mdev->local_cnt);
+
+ mdev->state = ns;
wake_up(&mdev->misc_wait);
wake_up(&mdev->state_wait);
if (test_bit(NEW_CUR_UUID, &mdev->flags)) {
drbd_uuid_new_current(mdev);
clear_bit(NEW_CUR_UUID, &mdev->flags);
- drbd_md_sync(mdev);
}
spin_lock_irq(&mdev->req_lock);
_drbd_set_state(_NS(mdev, susp_fen, 0), CS_VERBOSE, NULL);
os.disk > D_INCONSISTENT && ns.disk == D_INCONSISTENT)
drbd_queue_bitmap_io(mdev, &drbd_bmio_set_n_write, NULL, "set_n_write from invalidate");
- /* first half of local IO error */
- if (os.disk > D_FAILED && ns.disk == D_FAILED) {
- enum drbd_io_error_p eh = EP_PASS_ON;
+ /* first half of local IO error, failure to attach,
+ * or administrative detach */
+ if (os.disk != D_FAILED && ns.disk == D_FAILED) {
+ enum drbd_io_error_p eh;
+ int was_io_error;
+ /* corresponding get_ldev was in __drbd_set_state, to serialize
+ * our cleanup here with the transition to D_DISKLESS,
+ * so it is safe to dreference ldev here. */
+ eh = mdev->ldev->dc.on_io_error;
+ was_io_error = test_and_clear_bit(WAS_IO_ERROR, &mdev->flags);
+
+ /* current state still has to be D_FAILED,
+ * there is only one way out: to D_DISKLESS,
+ * and that may only happen after our put_ldev below. */
+ if (mdev->state.disk != D_FAILED)
+ dev_err(DEV,
+ "ASSERT FAILED: disk is %s during detach\n",
+ drbd_disk_str(mdev->state.disk));
if (drbd_send_state(mdev))
- dev_warn(DEV, "Notified peer that my disk is broken.\n");
+ dev_warn(DEV, "Notified peer that I am detaching my disk\n");
else
- dev_err(DEV, "Sending state for drbd_io_error() failed\n");
+ dev_err(DEV, "Sending state for detaching disk failed\n");
drbd_rs_cancel_all(mdev);
- if (get_ldev_if_state(mdev, D_FAILED)) {
- eh = mdev->ldev->dc.on_io_error;
- put_ldev(mdev);
- }
- if (eh == EP_CALL_HELPER)
+ /* In case we want to get something to stable storage still,
+ * this may be the last chance.
+ * Following put_ldev may transition to D_DISKLESS. */
+ drbd_md_sync(mdev);
+ put_ldev(mdev);
+
+ if (was_io_error && eh == EP_CALL_HELPER)
drbd_khelper(mdev, "local-io-error");
}
+ /* second half of local IO error, failure to attach,
+ * or administrative detach,
+ * after local_cnt references have reached zero again */
+ if (os.disk != D_DISKLESS && ns.disk == D_DISKLESS) {
+ /* We must still be diskless,
+ * re-attach has to be serialized with this! */
+ if (mdev->state.disk != D_DISKLESS)
+ dev_err(DEV,
+ "ASSERT FAILED: disk is %s while going diskless\n",
+ drbd_disk_str(mdev->state.disk));
- /* second half of local IO error handling,
- * after local_cnt references have reached zero: */
- if (os.disk == D_FAILED && ns.disk == D_DISKLESS) {
- mdev->rs_total = 0;
- mdev->rs_failed = 0;
- atomic_set(&mdev->rs_pending_cnt, 0);
- }
-
- if (os.disk > D_DISKLESS && ns.disk == D_DISKLESS) {
- /* We must still be diskless,
- * re-attach has to be serialized with this! */
- if (mdev->state.disk != D_DISKLESS)
- dev_err(DEV,
- "ASSERT FAILED: disk is %s while going diskless\n",
- drbd_disk_str(mdev->state.disk));
+ mdev->rs_total = 0;
+ mdev->rs_failed = 0;
+ atomic_set(&mdev->rs_pending_cnt, 0);
- /* we cannot assert local_cnt == 0 here, as get_ldev_if_state
- * will inc/dec it frequently. Since we became D_DISKLESS, no
- * one has touched the protected members anymore, though, so we
- * are safe to free them here. */
if (drbd_send_state(mdev))
- dev_warn(DEV, "Notified peer that I detached my disk.\n");
+ dev_warn(DEV, "Notified peer that I'm now diskless.\n");
else
- dev_err(DEV, "Sending state for detach failed\n");
-
- lc_destroy(mdev->resync);
- mdev->resync = NULL;
- lc_destroy(mdev->act_log);
- mdev->act_log = NULL;
- __no_warn(local,
- drbd_free_bc(mdev->ldev);
- mdev->ldev = NULL;);
-
- if (mdev->md_io_tmpp) {
- __free_page(mdev->md_io_tmpp);
- mdev->md_io_tmpp = NULL;
- }
+ dev_err(DEV, "Sending state for being diskless failed\n");
+ /* corresponding get_ldev in __drbd_set_state
+ * this may finaly trigger drbd_ldev_destroy. */
+ put_ldev(mdev);
}
/* Disks got bigger while they were detached */
drbd_set_defaults(mdev);
- /* for now, we do NOT yet support it,
- * even though we start some framework
- * to eventually support barriers */
- set_bit(NO_BARRIER_SUPP, &mdev->flags);
-
atomic_set(&mdev->ap_bio_cnt, 0);
atomic_set(&mdev->ap_pending_cnt, 0);
atomic_set(&mdev->rs_pending_cnt, 0);
drbd_thread_init(mdev, &mdev->asender, drbd_asender);
mdev->agreed_pro_version = PRO_VERSION_MAX;
- mdev->write_ordering = WO_bio_barrier;
+ mdev->write_ordering = WO_bdev_flush;
mdev->resync_wenr = LC_FREE;
}
D_ASSERT(list_empty(&mdev->resync_work.list));
D_ASSERT(list_empty(&mdev->unplug_work.list));
D_ASSERT(list_empty(&mdev->go_diskless.list));
-
}
drbd_ee_mempool = mempool_create(number,
mempool_alloc_slab, mempool_free_slab, drbd_ee_cache);
- if (drbd_request_mempool == NULL)
+ if (drbd_ee_mempool == NULL)
goto Enomem;
/* drbd's page pool */
get_random_bytes(&val, sizeof(u64));
_drbd_uuid_set(mdev, UI_CURRENT, val);
+ /* get it to stable storage _now_ */
+ drbd_md_sync(mdev);
}
void drbd_uuid_set_bm(struct drbd_conf *mdev, u64 val) __must_hold(local)
return 1;
}
+ void drbd_ldev_destroy(struct drbd_conf *mdev)
+ {
+ lc_destroy(mdev->resync);
+ mdev->resync = NULL;
+ lc_destroy(mdev->act_log);
+ mdev->act_log = NULL;
+ __no_warn(local,
+ drbd_free_bc(mdev->ldev);
+ mdev->ldev = NULL;);
+
+ if (mdev->md_io_tmpp) {
+ __free_page(mdev->md_io_tmpp);
+ mdev->md_io_tmpp = NULL;
+ }
+ clear_bit(GO_DISKLESS, &mdev->flags);
+ }
+
static int w_go_diskless(struct drbd_conf *mdev, struct drbd_work *w, int unused)
{
D_ASSERT(mdev->state.disk == D_FAILED);
/* we cannot assert local_cnt == 0 here, as get_ldev_if_state will
* inc/dec it frequently. Once we are D_DISKLESS, no one will touch
- * the protected members anymore, though, so in the after_state_ch work
- * it will be safe to free them. */
+ * the protected members anymore, though, so once put_ldev reaches zero
+ * again, it will be safe to free them. */
drbd_force_state(mdev, NS(disk, D_DISKLESS));
- /* We need to wait for return of references checked out while we still
- * have been D_FAILED, though (drbd_md_sync, bitmap io). */
- wait_event(mdev->misc_wait, !atomic_read(&mdev->local_cnt));
-
- clear_bit(GO_DISKLESS, &mdev->flags);
return 1;
}
D_ASSERT(mdev->state.disk == D_FAILED);
if (!test_and_set_bit(GO_DISKLESS, &mdev->flags))
drbd_queue_work(&mdev->data.work, &mdev->go_diskless);
- /* don't drbd_queue_work_front,
- * we need to serialize with the after_state_ch work
- * of the -> D_FAILED transition. */
}
/**
projects / cascardo / linux.git / commitdiff