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authorAl Viro <viro@zeniv.linux.org.uk>2016-07-28 13:05:50 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2016-07-29 17:28:58 -0400
commitd614146d18159e54d4dfc289e4c1534ccc485cf2 (patch)
tree60c87c3c1af635106d8d1c3ae4fcdc73e5c4a1c2 /fs/dcache.c
parent1a81a8f2a5918956e214bb718099a89e500e7ec5 (diff)
downloadlinux-d614146d18159e54d4dfc289e4c1534ccc485cf2.tar.bz2
fold dentry_rcuwalk_invalidate() into its only remaining caller
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/dcache.c')
-rw-r--r--fs/dcache.c17
1 files changed, 2 insertions, 15 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index b90cf8e09d5b..6a629f50c3cf 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -316,20 +316,6 @@ static void dentry_free(struct dentry *dentry)
call_rcu(&dentry->d_u.d_rcu, __d_free);
}
-/**
- * dentry_rcuwalk_invalidate - invalidate in-progress rcu-walk lookups
- * @dentry: the target dentry
- * After this call, in-progress rcu-walk path lookup will fail. This
- * should be called after unhashing, and after changing d_inode (if
- * the dentry has not already been unhashed).
- */
-static inline void dentry_rcuwalk_invalidate(struct dentry *dentry)
-{
- lockdep_assert_held(&dentry->d_lock);
- /* Go through am invalidation barrier */
- write_seqcount_invalidate(&dentry->d_seq);
-}
-
/*
* Release the dentry's inode, using the filesystem
* d_iput() operation if defined.
@@ -468,7 +454,8 @@ void __d_drop(struct dentry *dentry)
__hlist_bl_del(&dentry->d_hash);
dentry->d_hash.pprev = NULL;
hlist_bl_unlock(b);
- dentry_rcuwalk_invalidate(dentry);
+ /* After this call, in-progress rcu-walk path lookup will fail. */
+ write_seqcount_invalidate(&dentry->d_seq);
}
}
EXPORT_SYMBOL(__d_drop);