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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-15 14:51:31 +0200 |
|---|---|---|
| committer | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-15 14:51:31 +0200 |
| commit | d475fd428ce77aa2a8bc650d230e17663a4f49c3 (patch) | |
| tree | 19ba4a1b688a758b2e674f792e1d605896419cc8 /fs/inode.c | |
| parent | 58dfe883d3bc3b4c08c53a7f39e2ca3ec84f089e (diff) | |
| download | lwn-d475fd428ce77aa2a8bc650d230e17663a4f49c3.tar.gz lwn-d475fd428ce77aa2a8bc650d230e17663a4f49c3.zip | |
lockdep: per filesystem inode lock class
Give each filesystem its own inode lock class. The various filesystems have
different locking order wrt the inode locks; esp. the pseudo filesystems differ
from the rest.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/fs/inode.c b/fs/inode.c index 29f5068f819b..bf6adf122c68 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -142,6 +142,15 @@ static struct inode *alloc_inode(struct super_block *sb) return NULL; } + spin_lock_init(&inode->i_lock); + lockdep_set_class(&inode->i_lock, &sb->s_type->i_lock_key); + + mutex_init(&inode->i_mutex); + lockdep_set_class(&inode->i_mutex, &sb->s_type->i_mutex_key); + + init_rwsem(&inode->i_alloc_sem); + lockdep_set_class(&inode->i_alloc_sem, &sb->s_type->i_alloc_sem_key); + mapping->a_ops = &empty_aops; mapping->host = inode; mapping->flags = 0; @@ -190,8 +199,6 @@ void inode_init_once(struct inode *inode) INIT_HLIST_NODE(&inode->i_hash); INIT_LIST_HEAD(&inode->i_dentry); INIT_LIST_HEAD(&inode->i_devices); - mutex_init(&inode->i_mutex); - init_rwsem(&inode->i_alloc_sem); INIT_RADIX_TREE(&inode->i_data.page_tree, GFP_ATOMIC); rwlock_init(&inode->i_data.tree_lock); spin_lock_init(&inode->i_data.i_mmap_lock); @@ -199,7 +206,6 @@ void inode_init_once(struct inode *inode) spin_lock_init(&inode->i_data.private_lock); INIT_RAW_PRIO_TREE_ROOT(&inode->i_data.i_mmap); INIT_LIST_HEAD(&inode->i_data.i_mmap_nonlinear); - spin_lock_init(&inode->i_lock); i_size_ordered_init(inode); #ifdef CONFIG_INOTIFY INIT_LIST_HEAD(&inode->inotify_watches); |