diff options
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index bf3c4f9569eb..ca8e9cd60f87 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -229,7 +229,7 @@ static void __d_free(struct rcu_head *head) */ static void d_free(struct dentry *dentry) { - BUG_ON(dentry->d_lockref.count); + BUG_ON((int)dentry->d_lockref.count > 0); this_cpu_dec(nr_dentry); if (dentry->d_op && dentry->d_op->d_release) dentry->d_op->d_release(dentry); @@ -445,7 +445,7 @@ EXPORT_SYMBOL(d_drop); * If ref is non-zero, then decrement the refcount too. * Returns dentry requiring refcount drop, or NULL if we're done. */ -static inline struct dentry *dentry_kill(struct dentry *dentry, int ref) +static inline struct dentry *dentry_kill(struct dentry *dentry) __releases(dentry->d_lock) { struct inode *inode; @@ -468,8 +468,11 @@ relock: goto relock; } - if (ref) - dentry->d_lockref.count--; + /* + * The dentry is now unrecoverably dead to the world. + */ + lockref_mark_dead(&dentry->d_lockref); + /* * inform the fs via d_prune that this dentry is about to be * unhashed and destroyed. @@ -535,7 +538,7 @@ repeat: return; kill_it: - dentry = dentry_kill(dentry, 1); + dentry = dentry_kill(dentry); if (dentry) goto repeat; } @@ -760,7 +763,7 @@ static void try_prune_one_dentry(struct dentry *dentry) { struct dentry *parent; - parent = dentry_kill(dentry, 0); + parent = dentry_kill(dentry); /* * If dentry_kill returns NULL, we have nothing more to do. * if it returns the same dentry, trylocks failed. In either @@ -781,7 +784,7 @@ static void try_prune_one_dentry(struct dentry *dentry) while (dentry) { if (lockref_put_or_lock(&dentry->d_lockref)) return; - dentry = dentry_kill(dentry, 1); + dentry = dentry_kill(dentry); } } |