lockres->l_type == OCFS2_LOCK_TYPE_OPEN;
}
+static inline struct ocfs2_lock_res *ocfs2_lksb_to_lock_res(struct ocfs2_dlm_lksb *lksb)
+{
+ return container_of(lksb, struct ocfs2_lock_res, l_lksb);
+}
+
static inline struct inode *ocfs2_lock_res_inode(struct ocfs2_lock_res *lockres)
{
BUG_ON(!ocfs2_is_inode_lock(lockres));
lockres_or_flags(lockres, OCFS2_LOCK_NEEDS_REFRESH);
lockres->l_level = lockres->l_requested;
+
+ /*
+ * We set the OCFS2_LOCK_UPCONVERT_FINISHING flag before clearing
+ * the OCFS2_LOCK_BUSY flag to prevent the dc thread from
+ * downconverting the lock before the upconvert has fully completed.
+ */
+ lockres_or_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
+
lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
mlog_exit_void();
assert_spin_locked(&lockres->l_lock);
- lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED);
-
if (level > lockres->l_blocking) {
/* only schedule a downconvert if we haven't already scheduled
* one that goes low enough to satisfy the level we're
lockres->l_blocking = level;
}
+ mlog(ML_BASTS, "lockres %s, block %d, level %d, l_block %d, dwn %d\n",
+ lockres->l_name, level, lockres->l_level, lockres->l_blocking,
+ needs_downconvert);
+
+ if (needs_downconvert)
+ lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED);
+
mlog_exit(needs_downconvert);
return needs_downconvert;
}
return lockres->l_pending_gen;
}
-
-static void ocfs2_blocking_ast(void *opaque, int level)
+static void ocfs2_blocking_ast(struct ocfs2_dlm_lksb *lksb, int level)
{
- struct ocfs2_lock_res *lockres = opaque;
+ struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
struct ocfs2_super *osb = ocfs2_get_lockres_osb(lockres);
int needs_downconvert;
unsigned long flags;
BUG_ON(level <= DLM_LOCK_NL);
- mlog(0, "BAST fired for lockres %s, blocking %d, level %d type %s\n",
- lockres->l_name, level, lockres->l_level,
+ mlog(ML_BASTS, "BAST fired for lockres %s, blocking %d, level %d, "
+ "type %s\n", lockres->l_name, level, lockres->l_level,
ocfs2_lock_type_string(lockres->l_type));
/*
ocfs2_wake_downconvert_thread(osb);
}
-static void ocfs2_locking_ast(void *opaque)
+static void ocfs2_locking_ast(struct ocfs2_dlm_lksb *lksb)
{
- struct ocfs2_lock_res *lockres = opaque;
+ struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
struct ocfs2_super *osb = ocfs2_get_lockres_osb(lockres);
unsigned long flags;
int status;
return;
}
+ mlog(ML_BASTS, "AST fired for lockres %s, action %d, unlock %d, "
+ "level %d => %d\n", lockres->l_name, lockres->l_action,
+ lockres->l_unlock_action, lockres->l_level, lockres->l_requested);
+
switch(lockres->l_action) {
case OCFS2_AST_ATTACH:
ocfs2_generic_handle_attach_action(lockres);
ocfs2_generic_handle_downconvert_action(lockres);
break;
default:
- mlog(ML_ERROR, "lockres %s: ast fired with invalid action: %u "
- "lockres flags = 0x%lx, unlock action: %u\n",
+ mlog(ML_ERROR, "lockres %s: AST fired with invalid action: %u, "
+ "flags 0x%lx, unlock: %u\n",
lockres->l_name, lockres->l_action, lockres->l_flags,
lockres->l_unlock_action);
BUG();
spin_unlock_irqrestore(&lockres->l_lock, flags);
}
+static void ocfs2_unlock_ast(struct ocfs2_dlm_lksb *lksb, int error)
+{
+ struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
+ unsigned long flags;
+
+ mlog_entry_void();
+
+ mlog(ML_BASTS, "UNLOCK AST fired for lockres %s, action = %d\n",
+ lockres->l_name, lockres->l_unlock_action);
+
+ spin_lock_irqsave(&lockres->l_lock, flags);
+ if (error) {
+ mlog(ML_ERROR, "Dlm passes error %d for lock %s, "
+ "unlock_action %d\n", error, lockres->l_name,
+ lockres->l_unlock_action);
+ spin_unlock_irqrestore(&lockres->l_lock, flags);
+ mlog_exit_void();
+ return;
+ }
+
+ switch(lockres->l_unlock_action) {
+ case OCFS2_UNLOCK_CANCEL_CONVERT:
+ mlog(0, "Cancel convert success for %s\n", lockres->l_name);
+ lockres->l_action = OCFS2_AST_INVALID;
+ /* Downconvert thread may have requeued this lock, we
+ * need to wake it. */
+ if (lockres->l_flags & OCFS2_LOCK_BLOCKED)
+ ocfs2_wake_downconvert_thread(ocfs2_get_lockres_osb(lockres));
+ break;
+ case OCFS2_UNLOCK_DROP_LOCK:
+ lockres->l_level = DLM_LOCK_IV;
+ break;
+ default:
+ BUG();
+ }
+
+ lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
+ lockres->l_unlock_action = OCFS2_UNLOCK_INVALID;
+ wake_up(&lockres->l_event);
+ spin_unlock_irqrestore(&lockres->l_lock, flags);
+
+ mlog_exit_void();
+}
+
+/*
+ * This is the filesystem locking protocol. It provides the lock handling
+ * hooks for the underlying DLM. It has a maximum version number.
+ * The version number allows interoperability with systems running at
+ * the same major number and an equal or smaller minor number.
+ *
+ * Whenever the filesystem does new things with locks (adds or removes a
+ * lock, orders them differently, does different things underneath a lock),
+ * the version must be changed. The protocol is negotiated when joining
+ * the dlm domain. A node may join the domain if its major version is
+ * identical to all other nodes and its minor version is greater than
+ * or equal to all other nodes. When its minor version is greater than
+ * the other nodes, it will run at the minor version specified by the
+ * other nodes.
+ *
+ * If a locking change is made that will not be compatible with older
+ * versions, the major number must be increased and the minor version set
+ * to zero. If a change merely adds a behavior that can be disabled when
+ * speaking to older versions, the minor version must be increased. If a
+ * change adds a fully backwards compatible change (eg, LVB changes that
+ * are just ignored by older versions), the version does not need to be
+ * updated.
+ */
+static struct ocfs2_locking_protocol lproto = {
+ .lp_max_version = {
+ .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
+ .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
+ },
+ .lp_lock_ast = ocfs2_locking_ast,
+ .lp_blocking_ast = ocfs2_blocking_ast,
+ .lp_unlock_ast = ocfs2_unlock_ast,
+};
+
+void ocfs2_set_locking_protocol(void)
+{
+ ocfs2_stack_glue_set_max_proto_version(&lproto.lp_max_version);
+}
+
static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres,
int convert)
{
mlog_entry_void();
spin_lock_irqsave(&lockres->l_lock, flags);
lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
+ lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
if (convert)
lockres->l_action = OCFS2_AST_INVALID;
else
&lockres->l_lksb,
dlm_flags,
lockres->l_name,
- OCFS2_LOCK_ID_MAX_LEN - 1,
- lockres);
+ OCFS2_LOCK_ID_MAX_LEN - 1);
lockres_clear_pending(lockres, gen, osb);
if (ret) {
ocfs2_log_dlm_error("ocfs2_dlm_lock", ret, lockres);
again:
wait = 0;
+ spin_lock_irqsave(&lockres->l_lock, flags);
+
if (catch_signals && signal_pending(current)) {
ret = -ERESTARTSYS;
- goto out;
+ goto unlock;
}
- spin_lock_irqsave(&lockres->l_lock, flags);
-
mlog_bug_on_msg(lockres->l_flags & OCFS2_LOCK_FREEING,
"Cluster lock called on freeing lockres %s! flags "
"0x%lx\n", lockres->l_name, lockres->l_flags);
goto unlock;
}
+ if (lockres->l_flags & OCFS2_LOCK_UPCONVERT_FINISHING) {
+ /*
+ * We've upconverted. If the lock now has a level we can
+ * work with, we take it. If, however, the lock is not at the
+ * required level, we go thru the full cycle. One way this could
+ * happen is if a process requesting an upconvert to PR is
+ * closely followed by another requesting upconvert to an EX.
+ * If the process requesting EX lands here, we want it to
+ * continue attempting to upconvert and let the process
+ * requesting PR take the lock.
+ * If multiple processes request upconvert to PR, the first one
+ * here will take the lock. The others will have to go thru the
+ * OCFS2_LOCK_BLOCKED check to ensure that there is no pending
+ * downconvert request.
+ */
+ if (level <= lockres->l_level)
+ goto update_holders;
+ }
+
if (lockres->l_flags & OCFS2_LOCK_BLOCKED &&
!ocfs2_may_continue_on_blocked_lock(lockres, level)) {
/* is the lock is currently blocked on behalf of
BUG_ON(level == DLM_LOCK_IV);
BUG_ON(level == DLM_LOCK_NL);
- mlog(0, "lock %s, convert from %d to level = %d\n",
+ mlog(ML_BASTS, "lockres %s, convert from %d to %d\n",
lockres->l_name, lockres->l_level, level);
/* call dlm_lock to upgrade lock now */
&lockres->l_lksb,
lkm_flags,
lockres->l_name,
- OCFS2_LOCK_ID_MAX_LEN - 1,
- lockres);
+ OCFS2_LOCK_ID_MAX_LEN - 1);
lockres_clear_pending(lockres, gen, osb);
if (ret) {
if (!(lkm_flags & DLM_LKF_NOQUEUE) ||
goto again;
}
+update_holders:
/* Ok, if we get here then we're good to go. */
ocfs2_inc_holders(lockres, level);
ret = 0;
unlock:
+ lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
+
spin_unlock_irqrestore(&lockres->l_lock, flags);
out:
/*
spin_unlock_irqrestore(&lockres->l_lock, flags);
ret = ocfs2_dlm_lock(osb->cconn, level, &lockres->l_lksb, lkm_flags,
- lockres->l_name, OCFS2_LOCK_ID_MAX_LEN - 1,
- lockres);
+ lockres->l_name, OCFS2_LOCK_ID_MAX_LEN - 1);
if (ret) {
if (!trylock || (ret != -EAGAIN)) {
ocfs2_log_dlm_error("ocfs2_dlm_lock", ret, lockres);
status = ocfs2_cluster_connect(osb->osb_cluster_stack,
osb->uuid_str,
strlen(osb->uuid_str),
- ocfs2_do_node_down, osb,
+ &lproto, ocfs2_do_node_down, osb,
&conn);
if (status) {
mlog_errno(status);
mlog_exit_void();
}
-static void ocfs2_unlock_ast(void *opaque, int error)
-{
- struct ocfs2_lock_res *lockres = opaque;
- unsigned long flags;
-
- mlog_entry_void();
-
- mlog(0, "UNLOCK AST called on lock %s, action = %d\n", lockres->l_name,
- lockres->l_unlock_action);
-
- spin_lock_irqsave(&lockres->l_lock, flags);
- if (error) {
- mlog(ML_ERROR, "Dlm passes error %d for lock %s, "
- "unlock_action %d\n", error, lockres->l_name,
- lockres->l_unlock_action);
- spin_unlock_irqrestore(&lockres->l_lock, flags);
- mlog_exit_void();
- return;
- }
-
- switch(lockres->l_unlock_action) {
- case OCFS2_UNLOCK_CANCEL_CONVERT:
- mlog(0, "Cancel convert success for %s\n", lockres->l_name);
- lockres->l_action = OCFS2_AST_INVALID;
- /* Downconvert thread may have requeued this lock, we
- * need to wake it. */
- if (lockres->l_flags & OCFS2_LOCK_BLOCKED)
- ocfs2_wake_downconvert_thread(ocfs2_get_lockres_osb(lockres));
- break;
- case OCFS2_UNLOCK_DROP_LOCK:
- lockres->l_level = DLM_LOCK_IV;
- break;
- default:
- BUG();
- }
-
- lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
- lockres->l_unlock_action = OCFS2_UNLOCK_INVALID;
- wake_up(&lockres->l_event);
- spin_unlock_irqrestore(&lockres->l_lock, flags);
-
- mlog_exit_void();
-}
-
static int ocfs2_drop_lock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres)
{
mlog(0, "lock %s\n", lockres->l_name);
- ret = ocfs2_dlm_unlock(osb->cconn, &lockres->l_lksb, lkm_flags,
- lockres);
+ ret = ocfs2_dlm_unlock(osb->cconn, &lockres->l_lksb, lkm_flags);
if (ret) {
ocfs2_log_dlm_error("ocfs2_dlm_unlock", ret, lockres);
mlog(ML_ERROR, "lockres flags: %lu\n", lockres->l_flags);
/* Mark the lockres as being dropped. It will no longer be
* queued if blocking, but we still may have to wait on it
* being dequeued from the downconvert thread before we can consider
- * it safe to drop.
+ * it safe to drop.
*
* You can *not* attempt to call cluster_lock on this lockres anymore. */
void ocfs2_mark_lockres_freeing(struct ocfs2_lock_res *lockres)
BUG_ON(lockres->l_blocking <= DLM_LOCK_NL);
if (lockres->l_level <= new_level) {
- mlog(ML_ERROR, "lockres->l_level (%d) <= new_level (%d)\n",
- lockres->l_level, new_level);
+ mlog(ML_ERROR, "lockres %s, lvl %d <= %d, blcklst %d, mask %d, "
+ "type %d, flags 0x%lx, hold %d %d, act %d %d, req %d, "
+ "block %d, pgen %d\n", lockres->l_name, lockres->l_level,
+ new_level, list_empty(&lockres->l_blocked_list),
+ list_empty(&lockres->l_mask_waiters), lockres->l_type,
+ lockres->l_flags, lockres->l_ro_holders,
+ lockres->l_ex_holders, lockres->l_action,
+ lockres->l_unlock_action, lockres->l_requested,
+ lockres->l_blocking, lockres->l_pending_gen);
BUG();
}
- mlog(0, "lock %s, new_level = %d, l_blocking = %d\n",
- lockres->l_name, new_level, lockres->l_blocking);
+ mlog(ML_BASTS, "lockres %s, level %d => %d, blocking %d\n",
+ lockres->l_name, lockres->l_level, new_level, lockres->l_blocking);
lockres->l_action = OCFS2_AST_DOWNCONVERT;
lockres->l_requested = new_level;
mlog_entry_void();
+ mlog(ML_BASTS, "lockres %s, level %d => %d\n", lockres->l_name,
+ lockres->l_level, new_level);
+
if (lvb)
dlm_flags |= DLM_LKF_VALBLK;
&lockres->l_lksb,
dlm_flags,
lockres->l_name,
- OCFS2_LOCK_ID_MAX_LEN - 1,
- lockres);
+ OCFS2_LOCK_ID_MAX_LEN - 1);
lockres_clear_pending(lockres, generation, osb);
if (ret) {
ocfs2_log_dlm_error("ocfs2_dlm_lock", ret, lockres);
assert_spin_locked(&lockres->l_lock);
mlog_entry_void();
- mlog(0, "lock %s\n", lockres->l_name);
if (lockres->l_unlock_action == OCFS2_UNLOCK_CANCEL_CONVERT) {
/* If we're already trying to cancel a lock conversion
* then just drop the spinlock and allow the caller to
* requeue this lock. */
-
- mlog(0, "Lockres %s, skip convert\n", lockres->l_name);
+ mlog(ML_BASTS, "lockres %s, skip convert\n", lockres->l_name);
return 0;
}
"lock %s, invalid flags: 0x%lx\n",
lockres->l_name, lockres->l_flags);
+ mlog(ML_BASTS, "lockres %s\n", lockres->l_name);
+
return 1;
}
int ret;
mlog_entry_void();
- mlog(0, "lock %s\n", lockres->l_name);
ret = ocfs2_dlm_unlock(osb->cconn, &lockres->l_lksb,
- DLM_LKF_CANCEL, lockres);
+ DLM_LKF_CANCEL);
if (ret) {
ocfs2_log_dlm_error("ocfs2_dlm_unlock", ret, lockres);
ocfs2_recover_from_dlm_error(lockres, 0);
}
- mlog(0, "lock %s return from ocfs2_dlm_unlock\n", lockres->l_name);
+ mlog(ML_BASTS, "lockres %s\n", lockres->l_name);
mlog_exit(ret);
return ret;
unsigned long flags;
int blocking;
int new_level;
+ int level;
int ret = 0;
int set_lvb = 0;
unsigned int gen;
spin_lock_irqsave(&lockres->l_lock, flags);
- BUG_ON(!(lockres->l_flags & OCFS2_LOCK_BLOCKED));
-
recheck:
+ /*
+ * Is it still blocking? If not, we have no more work to do.
+ */
+ if (!(lockres->l_flags & OCFS2_LOCK_BLOCKED)) {
+ BUG_ON(lockres->l_blocking != DLM_LOCK_NL);
+ spin_unlock_irqrestore(&lockres->l_lock, flags);
+ ret = 0;
+ goto leave;
+ }
+
if (lockres->l_flags & OCFS2_LOCK_BUSY) {
/* XXX
* This is a *big* race. The OCFS2_LOCK_PENDING flag
* at the same time they set OCFS2_DLM_BUSY. They must
* clear OCFS2_DLM_PENDING after dlm_lock() returns.
*/
- if (lockres->l_flags & OCFS2_LOCK_PENDING)
+ if (lockres->l_flags & OCFS2_LOCK_PENDING) {
+ mlog(ML_BASTS, "lockres %s, ReQ: Pending\n",
+ lockres->l_name);
goto leave_requeue;
+ }
ctl->requeue = 1;
ret = ocfs2_prepare_cancel_convert(osb, lockres);
goto leave;
}
+ /*
+ * This prevents livelocks. OCFS2_LOCK_UPCONVERT_FINISHING flag is
+ * set when the ast is received for an upconvert just before the
+ * OCFS2_LOCK_BUSY flag is cleared. Now if the fs received a bast
+ * on the heels of the ast, we want to delay the downconvert just
+ * enough to allow the up requestor to do its task. Because this
+ * lock is in the blocked queue, the lock will be downconverted
+ * as soon as the requestor is done with the lock.
+ */
+ if (lockres->l_flags & OCFS2_LOCK_UPCONVERT_FINISHING)
+ goto leave_requeue;
+
+ /*
+ * How can we block and yet be at NL? We were trying to upconvert
+ * from NL and got canceled. The code comes back here, and now
+ * we notice and clear BLOCKING.
+ */
+ if (lockres->l_level == DLM_LOCK_NL) {
+ BUG_ON(lockres->l_ex_holders || lockres->l_ro_holders);
+ mlog(ML_BASTS, "lockres %s, Aborting dc\n", lockres->l_name);
+ lockres->l_blocking = DLM_LOCK_NL;
+ lockres_clear_flags(lockres, OCFS2_LOCK_BLOCKED);
+ spin_unlock_irqrestore(&lockres->l_lock, flags);
+ goto leave;
+ }
+
/* if we're blocking an exclusive and we have *any* holders,
* then requeue. */
if ((lockres->l_blocking == DLM_LOCK_EX)
- && (lockres->l_ex_holders || lockres->l_ro_holders))
+ && (lockres->l_ex_holders || lockres->l_ro_holders)) {
+ mlog(ML_BASTS, "lockres %s, ReQ: EX/PR Holders %u,%u\n",
+ lockres->l_name, lockres->l_ex_holders,
+ lockres->l_ro_holders);
goto leave_requeue;
+ }
/* If it's a PR we're blocking, then only
* requeue if we've got any EX holders */
if (lockres->l_blocking == DLM_LOCK_PR &&
- lockres->l_ex_holders)
+ lockres->l_ex_holders) {
+ mlog(ML_BASTS, "lockres %s, ReQ: EX Holders %u\n",
+ lockres->l_name, lockres->l_ex_holders);
goto leave_requeue;
+ }
/*
* Can we get a lock in this state if the holder counts are
* zero? The meta data unblock code used to check this.
*/
if ((lockres->l_ops->flags & LOCK_TYPE_REQUIRES_REFRESH)
- && (lockres->l_flags & OCFS2_LOCK_REFRESHING))
+ && (lockres->l_flags & OCFS2_LOCK_REFRESHING)) {
+ mlog(ML_BASTS, "lockres %s, ReQ: Lock Refreshing\n",
+ lockres->l_name);
goto leave_requeue;
+ }
new_level = ocfs2_highest_compat_lock_level(lockres->l_blocking);
if (lockres->l_ops->check_downconvert
- && !lockres->l_ops->check_downconvert(lockres, new_level))
+ && !lockres->l_ops->check_downconvert(lockres, new_level)) {
+ mlog(ML_BASTS, "lockres %s, ReQ: Checkpointing\n",
+ lockres->l_name);
goto leave_requeue;
+ }
/* If we get here, then we know that there are no more
* incompatible holders (and anyone asking for an incompatible
* may sleep, so we save off a copy of what we're blocking as
* it may change while we're not holding the spin lock. */
blocking = lockres->l_blocking;
+ level = lockres->l_level;
spin_unlock_irqrestore(&lockres->l_lock, flags);
ctl->unblock_action = lockres->l_ops->downconvert_worker(lockres, blocking);
- if (ctl->unblock_action == UNBLOCK_STOP_POST)
+ if (ctl->unblock_action == UNBLOCK_STOP_POST) {
+ mlog(ML_BASTS, "lockres %s, UNBLOCK_STOP_POST\n",
+ lockres->l_name);
goto leave;
+ }
spin_lock_irqsave(&lockres->l_lock, flags);
- if (blocking != lockres->l_blocking) {
+ if ((blocking != lockres->l_blocking) || (level != lockres->l_level)) {
/* If this changed underneath us, then we can't drop
* it just yet. */
+ mlog(ML_BASTS, "lockres %s, block=%d:%d, level=%d:%d, "
+ "Recheck\n", lockres->l_name, blocking,
+ lockres->l_blocking, level, lockres->l_level);
goto recheck;
}
ocfs2_cluster_unlock(osb, lockres, level);
}
-/*
- * This is the filesystem locking protocol. It provides the lock handling
- * hooks for the underlying DLM. It has a maximum version number.
- * The version number allows interoperability with systems running at
- * the same major number and an equal or smaller minor number.
- *
- * Whenever the filesystem does new things with locks (adds or removes a
- * lock, orders them differently, does different things underneath a lock),
- * the version must be changed. The protocol is negotiated when joining
- * the dlm domain. A node may join the domain if its major version is
- * identical to all other nodes and its minor version is greater than
- * or equal to all other nodes. When its minor version is greater than
- * the other nodes, it will run at the minor version specified by the
- * other nodes.
- *
- * If a locking change is made that will not be compatible with older
- * versions, the major number must be increased and the minor version set
- * to zero. If a change merely adds a behavior that can be disabled when
- * speaking to older versions, the minor version must be increased. If a
- * change adds a fully backwards compatible change (eg, LVB changes that
- * are just ignored by older versions), the version does not need to be
- * updated.
- */
-static struct ocfs2_locking_protocol lproto = {
- .lp_max_version = {
- .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
- .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
- },
- .lp_lock_ast = ocfs2_locking_ast,
- .lp_blocking_ast = ocfs2_blocking_ast,
- .lp_unlock_ast = ocfs2_unlock_ast,
-};
-
-void ocfs2_set_locking_protocol(void)
-{
- ocfs2_stack_glue_set_locking_protocol(&lproto);
-}
-
-
static void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres)
{
BUG_ON(!lockres);
BUG_ON(!lockres->l_ops);
- mlog(0, "lockres %s blocked.\n", lockres->l_name);
+ mlog(ML_BASTS, "lockres %s blocked\n", lockres->l_name);
/* Detect whether a lock has been marked as going away while
* the downconvert thread was processing other things. A lock can
} else
ocfs2_schedule_blocked_lock(osb, lockres);
- mlog(0, "lockres %s, requeue = %s.\n", lockres->l_name,
+ mlog(ML_BASTS, "lockres %s, requeue = %s.\n", lockres->l_name,
ctl.requeue ? "yes" : "no");
spin_unlock_irqrestore(&lockres->l_lock, flags);
/* Do not schedule a lock for downconvert when it's on
* the way to destruction - any nodes wanting access
* to the resource will get it soon. */
- mlog(0, "Lockres %s won't be scheduled: flags 0x%lx\n",
+ mlog(ML_BASTS, "lockres %s won't be scheduled: flags 0x%lx\n",
lockres->l_name, lockres->l_flags);
return;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff