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Diffstat (limited to 'fs')
-rw-r--r--fs/configfs/dir.c27
-rw-r--r--fs/ocfs2/aops.c26
-rw-r--r--fs/ocfs2/cluster/heartbeat.c50
-rw-r--r--fs/ocfs2/cluster/heartbeat.h2
-rw-r--r--fs/ocfs2/cluster/tcp.c13
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c3
-rw-r--r--fs/ocfs2/dlm/dlmthread.c2
-rw-r--r--fs/ocfs2/heartbeat.c15
8 files changed, 84 insertions, 54 deletions
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 34750d5e4ff..5e6e37e58f3 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1141,25 +1141,22 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys)
err = -ENOMEM;
dentry = d_alloc(configfs_sb->s_root, &name);
- if (!dentry)
- goto out_release;
-
- d_add(dentry, NULL);
+ if (dentry) {
+ d_add(dentry, NULL);
- err = configfs_attach_group(sd->s_element, &group->cg_item,
- dentry);
- if (!err)
- dentry = NULL;
- else
- d_delete(dentry);
+ err = configfs_attach_group(sd->s_element, &group->cg_item,
+ dentry);
+ if (err) {
+ d_delete(dentry);
+ dput(dentry);
+ }
+ }
mutex_unlock(&configfs_sb->s_root->d_inode->i_mutex);
- if (dentry) {
- dput(dentry);
-out_release:
- unlink_group(group);
- configfs_release_fs();
+ if (err) {
+ unlink_group(group);
+ configfs_release_fs();
}
return err;
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 93628b02ef5..875c1144381 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -614,6 +614,27 @@ static void ocfs2_dio_end_io(struct kiocb *iocb,
ocfs2_rw_unlock(inode, 0);
}
+/*
+ * ocfs2_invalidatepage() and ocfs2_releasepage() are shamelessly stolen
+ * from ext3. PageChecked() bits have been removed as OCFS2 does not
+ * do journalled data.
+ */
+static void ocfs2_invalidatepage(struct page *page, unsigned long offset)
+{
+ journal_t *journal = OCFS2_SB(page->mapping->host->i_sb)->journal->j_journal;
+
+ journal_invalidatepage(journal, page, offset);
+}
+
+static int ocfs2_releasepage(struct page *page, gfp_t wait)
+{
+ journal_t *journal = OCFS2_SB(page->mapping->host->i_sb)->journal->j_journal;
+
+ if (!page_has_buffers(page))
+ return 0;
+ return journal_try_to_free_buffers(journal, page, wait);
+}
+
static ssize_t ocfs2_direct_IO(int rw,
struct kiocb *iocb,
const struct iovec *iov,
@@ -661,5 +682,8 @@ const struct address_space_operations ocfs2_aops = {
.commit_write = ocfs2_commit_write,
.bmap = ocfs2_bmap,
.sync_page = block_sync_page,
- .direct_IO = ocfs2_direct_IO
+ .direct_IO = ocfs2_direct_IO,
+ .invalidatepage = ocfs2_invalidatepage,
+ .releasepage = ocfs2_releasepage,
+ .migratepage = buffer_migrate_page,
};
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 5a9779bb923..eba282da500 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1234,6 +1234,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
const char *page,
size_t count)
{
+ struct task_struct *hb_task;
long fd;
int sectsize;
char *p = (char *)page;
@@ -1319,20 +1320,28 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
*/
atomic_set(&reg->hr_steady_iterations, O2HB_LIVE_THRESHOLD + 1);
- reg->hr_task = kthread_run(o2hb_thread, reg, "o2hb-%s",
- reg->hr_item.ci_name);
- if (IS_ERR(reg->hr_task)) {
- ret = PTR_ERR(reg->hr_task);
+ hb_task = kthread_run(o2hb_thread, reg, "o2hb-%s",
+ reg->hr_item.ci_name);
+ if (IS_ERR(hb_task)) {
+ ret = PTR_ERR(hb_task);
mlog_errno(ret);
- reg->hr_task = NULL;
goto out;
}
+ spin_lock(&o2hb_live_lock);
+ reg->hr_task = hb_task;
+ spin_unlock(&o2hb_live_lock);
+
ret = wait_event_interruptible(o2hb_steady_queue,
atomic_read(&reg->hr_steady_iterations) == 0);
if (ret) {
- kthread_stop(reg->hr_task);
+ spin_lock(&o2hb_live_lock);
+ hb_task = reg->hr_task;
reg->hr_task = NULL;
+ spin_unlock(&o2hb_live_lock);
+
+ if (hb_task)
+ kthread_stop(hb_task);
goto out;
}
@@ -1354,10 +1363,17 @@ out:
static ssize_t o2hb_region_pid_read(struct o2hb_region *reg,
char *page)
{
- if (!reg->hr_task)
+ pid_t pid = 0;
+
+ spin_lock(&o2hb_live_lock);
+ if (reg->hr_task)
+ pid = reg->hr_task->pid;
+ spin_unlock(&o2hb_live_lock);
+
+ if (!pid)
return 0;
- return sprintf(page, "%u\n", reg->hr_task->pid);
+ return sprintf(page, "%u\n", pid);
}
struct o2hb_region_attribute {
@@ -1495,13 +1511,17 @@ out:
static void o2hb_heartbeat_group_drop_item(struct config_group *group,
struct config_item *item)
{
+ struct task_struct *hb_task;
struct o2hb_region *reg = to_o2hb_region(item);
/* stop the thread when the user removes the region dir */
- if (reg->hr_task) {
- kthread_stop(reg->hr_task);
- reg->hr_task = NULL;
- }
+ spin_lock(&o2hb_live_lock);
+ hb_task = reg->hr_task;
+ reg->hr_task = NULL;
+ spin_unlock(&o2hb_live_lock);
+
+ if (hb_task)
+ kthread_stop(hb_task);
config_item_put(item);
}
@@ -1682,7 +1702,7 @@ out:
}
EXPORT_SYMBOL_GPL(o2hb_register_callback);
-int o2hb_unregister_callback(struct o2hb_callback_func *hc)
+void o2hb_unregister_callback(struct o2hb_callback_func *hc)
{
BUG_ON(hc->hc_magic != O2HB_CB_MAGIC);
@@ -1690,15 +1710,13 @@ int o2hb_unregister_callback(struct o2hb_callback_func *hc)
__builtin_return_address(0), hc);
if (list_empty(&hc->hc_item))
- return 0;
+ return;
down_write(&o2hb_callback_sem);
list_del_init(&hc->hc_item);
up_write(&o2hb_callback_sem);
-
- return 0;
}
EXPORT_SYMBOL_GPL(o2hb_unregister_callback);
diff --git a/fs/ocfs2/cluster/heartbeat.h b/fs/ocfs2/cluster/heartbeat.h
index cac6223206a..cc6d40b3977 100644
--- a/fs/ocfs2/cluster/heartbeat.h
+++ b/fs/ocfs2/cluster/heartbeat.h
@@ -70,7 +70,7 @@ void o2hb_setup_callback(struct o2hb_callback_func *hc,
void *data,
int priority);
int o2hb_register_callback(struct o2hb_callback_func *hc);
-int o2hb_unregister_callback(struct o2hb_callback_func *hc);
+void o2hb_unregister_callback(struct o2hb_callback_func *hc);
void o2hb_fill_node_map(unsigned long *map,
unsigned bytes);
void o2hb_init(void);
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 1718215fc01..69caf3e12fe 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1638,17 +1638,8 @@ static void o2net_hb_node_up_cb(struct o2nm_node *node, int node_num,
void o2net_unregister_hb_callbacks(void)
{
- int ret;
-
- ret = o2hb_unregister_callback(&o2net_hb_up);
- if (ret < 0)
- mlog(ML_ERROR, "Status return %d unregistering heartbeat up "
- "callback!\n", ret);
-
- ret = o2hb_unregister_callback(&o2net_hb_down);
- if (ret < 0)
- mlog(ML_ERROR, "Status return %d unregistering heartbeat down "
- "callback!\n", ret);
+ o2hb_unregister_callback(&o2net_hb_up);
+ o2hb_unregister_callback(&o2net_hb_down);
}
int o2net_register_hb_callbacks(void)
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 77e4e6169a0..9229e04362f 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -2730,14 +2730,17 @@ int dlm_empty_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res)
int ret;
int lock_dropped = 0;
+ spin_lock(&res->spinlock);
if (res->owner != dlm->node_num) {
if (!__dlm_lockres_unused(res)) {
mlog(ML_ERROR, "%s:%.*s: this node is not master, "
"trying to free this but locks remain\n",
dlm->name, res->lockname.len, res->lockname.name);
}
+ spin_unlock(&res->spinlock);
goto leave;
}
+ spin_unlock(&res->spinlock);
/* Wheee! Migrate lockres here! Will sleep so drop spinlock. */
spin_unlock(&dlm->spinlock);
diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index 8ffa0916eb8..6421a8fae1d 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/fs/ocfs2/dlm/dlmthread.c
@@ -265,8 +265,10 @@ static void dlm_run_purge_list(struct dlm_ctxt *dlm,
/* This may drop and reacquire the dlm spinlock if it
* has to do migration. */
mlog(0, "calling dlm_purge_lockres!\n");
+ dlm_lockres_get(lockres);
if (dlm_purge_lockres(dlm, lockres))
BUG();
+ dlm_lockres_put(lockres);
mlog(0, "DONE calling dlm_purge_lockres!\n");
/* Avoid adding any scheduling latencies */
diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c
index 8fc52d6d0ce..b25ef63781b 100644
--- a/fs/ocfs2/heartbeat.c
+++ b/fs/ocfs2/heartbeat.c
@@ -164,8 +164,10 @@ int ocfs2_register_hb_callbacks(struct ocfs2_super *osb)
}
status = o2hb_register_callback(&osb->osb_hb_up);
- if (status < 0)
+ if (status < 0) {
mlog_errno(status);
+ o2hb_unregister_callback(&osb->osb_hb_down);
+ }
bail:
return status;
@@ -173,18 +175,11 @@ bail:
void ocfs2_clear_hb_callbacks(struct ocfs2_super *osb)
{
- int status;
-
if (ocfs2_mount_local(osb))
return;
- status = o2hb_unregister_callback(&osb->osb_hb_down);
- if (status < 0)
- mlog_errno(status);
-
- status = o2hb_unregister_callback(&osb->osb_hb_up);
- if (status < 0)
- mlog_errno(status);
+ o2hb_unregister_callback(&osb->osb_hb_down);
+ o2hb_unregister_callback(&osb->osb_hb_up);
}
void ocfs2_stop_heartbeat(struct ocfs2_super *osb)
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 12:06:30 +0000