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-rw-r--r--fs/dlm/config.c8
-rw-r--r--fs/dlm/plock.c2
-rw-r--r--fs/dlm/user.c9
3 files changed, 13 insertions, 6 deletions
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index eac23bd..c4e7d72 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -438,7 +438,7 @@ static struct config_group *make_cluster(struct config_group *g,
kfree(gps);
kfree(sps);
kfree(cms);
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
static void drop_cluster(struct config_group *g, struct config_item *i)
@@ -495,7 +495,7 @@ static struct config_group *make_space(struct config_group *g, const char *name)
kfree(sp);
kfree(gps);
kfree(nds);
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
static void drop_space(struct config_group *g, struct config_item *i)
@@ -528,7 +528,7 @@ static struct config_item *make_comm(struct config_group *g, const char *name)
cm = kzalloc(sizeof(struct comm), GFP_KERNEL);
if (!cm)
- return NULL;
+ return ERR_PTR(-ENOMEM);
config_item_init_type_name(&cm->item, name, &comm_type);
cm->nodeid = -1;
@@ -561,7 +561,7 @@ static struct config_item *make_node(struct config_group *g, const char *name)
nd = kzalloc(sizeof(struct node), GFP_KERNEL);
if (!nd)
- return NULL;
+ return ERR_PTR(-ENOMEM);
config_item_init_type_name(&nd->item, name, &node_type);
nd->nodeid = -1;
diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index 78878c5..eba87ff 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -116,7 +116,7 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
if (xop->callback == NULL)
wait_event(recv_wq, (op->done != 0));
else {
- rv = -EINPROGRESS;
+ rv = FILE_LOCK_DEFERRED;
goto out;
}
diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index 1aa76b3..929e48ae7 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -15,6 +15,7 @@
#include <linux/poll.h>
#include <linux/signal.h>
#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
#include <linux/dlm.h>
#include <linux/dlm_device.h>
@@ -618,13 +619,17 @@ static int device_open(struct inode *inode, struct file *file)
struct dlm_user_proc *proc;
struct dlm_ls *ls;
+ lock_kernel();
ls = dlm_find_lockspace_device(iminor(inode));
- if (!ls)
+ if (!ls) {
+ unlock_kernel();
return -ENOENT;
+ }
proc = kzalloc(sizeof(struct dlm_user_proc), GFP_KERNEL);
if (!proc) {
dlm_put_lockspace(ls);
+ unlock_kernel();
return -ENOMEM;
}
@@ -636,6 +641,7 @@ static int device_open(struct inode *inode, struct file *file)
spin_lock_init(&proc->locks_spin);
init_waitqueue_head(&proc->wait);
file->private_data = proc;
+ unlock_kernel();
return 0;
}
@@ -870,6 +876,7 @@ static unsigned int device_poll(struct file *file, poll_table *wait)
static int ctl_device_open(struct inode *inode, struct file *file)
{
+ cycle_kernel_lock();
file->private_data = NULL;
return 0;
}
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