diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2012-04-08 21:48:52 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2012-04-08 21:48:52 +0200 |
| commit | e75d660672ddd11704b7f0fdb8ff21968587b266 (patch) | |
| tree | ccb9c107744c10b553c0373e450bee3971d16c00 /drivers/vhost/vhost.c | |
| parent | 61282f37927143e45b03153f3e7b48d6b702147a (diff) | |
| parent | 0034102808e0dbbf3a2394b82b1bb40b5778de9e (diff) | |
Merge branch 'master' into for-next
Merge with latest Linus' tree, as I have incoming patches
that fix code that is newer than current HEAD of for-next.
Conflicts:
drivers/net/ethernet/realtek/r8169.c
Diffstat (limited to 'drivers/vhost/vhost.c')
| -rw-r--r-- | drivers/vhost/vhost.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index c14c42b95ab8..947f00d8e091 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -222,6 +222,8 @@ static int vhost_worker(void *data) if (work) { __set_current_state(TASK_RUNNING); work->fn(work); + if (need_resched()) + schedule(); } else schedule(); @@ -403,7 +405,7 @@ long vhost_dev_reset_owner(struct vhost_dev *dev) if (!memory) return -ENOMEM; - vhost_dev_cleanup(dev); + vhost_dev_cleanup(dev, true); memory->nregions = 0; RCU_INIT_POINTER(dev->memory, memory); @@ -434,8 +436,8 @@ int vhost_zerocopy_signal_used(struct vhost_virtqueue *vq) return j; } -/* Caller should have device mutex */ -void vhost_dev_cleanup(struct vhost_dev *dev) +/* Caller should have device mutex if and only if locked is set */ +void vhost_dev_cleanup(struct vhost_dev *dev, bool locked) { int i; @@ -472,7 +474,8 @@ void vhost_dev_cleanup(struct vhost_dev *dev) dev->log_file = NULL; /* No one will access memory at this point */ kfree(rcu_dereference_protected(dev->memory, - lockdep_is_held(&dev->mutex))); + locked == + lockdep_is_held(&dev->mutex))); RCU_INIT_POINTER(dev->memory, NULL); WARN_ON(!list_empty(&dev->work_list)); if (dev->worker) { @@ -937,9 +940,9 @@ static int set_bit_to_user(int nr, void __user *addr) if (r < 0) return r; BUG_ON(r != 1); - base = kmap_atomic(page, KM_USER0); + base = kmap_atomic(page); set_bit(bit, base); - kunmap_atomic(base, KM_USER0); + kunmap_atomic(base); set_page_dirty_lock(page); put_page(page); return 0; |