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MFC r268610:

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Add convenience macro to assert tmpfs node lock.
This commit is contained in:
kib 2014-07-28 01:06:36 +00:00
parent 8c4ee72725
commit eb32c3f0ff
2 changed files with 3 additions and 1 deletions
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2
sys/fs/tmpfs/tmpfs.h
View File

@ -276,6 +276,8 @@ LIST_HEAD(tmpfs_node_list, tmpfs_node);
#define TMPFS_NODE_LOCK(node) mtx_lock(&(node)->tn_interlock)
#define TMPFS_NODE_UNLOCK(node) mtx_unlock(&(node)->tn_interlock)
#define TMPFS_NODE_MTX(node) (&(node)->tn_interlock)
#define TMPFS_NODE_ASSERT_LOCKED(node) mtx_assert(TMPFS_NODE_MTX(node), \
MA_OWNED)
#ifdef INVARIANTS
#define TMPFS_ASSERT_LOCKED(node) do { \

2
sys/fs/tmpfs/tmpfs_subr.c
View File

@ -633,7 +633,7 @@ tmpfs_free_vp(struct vnode *vp)
node = VP_TO_TMPFS_NODE(vp);
mtx_assert(TMPFS_NODE_MTX(node), MA_OWNED);
TMPFS_NODE_ASSERT_LOCKED(node);
node->tn_vnode = NULL;
if ((node->tn_vpstate & TMPFS_VNODE_WRECLAIM) != 0)
wakeup(&node->tn_vnode);