vfs: turn generic_drop_inode() into static inline

Once upon a time it used to be much bigger, but these days there's
no point whatsoever keeping it in fs/inode.c, especially since
it's not even needed as initializer for ->drop_inode() - it's the
default and leaving ->drop_inode NULL will do just as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 0ab89426ba55..b89dc4d60d99 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2305,7 +2305,10 @@ extern struct inode * igrab(struct inode *);
 extern ino_t iunique(struct super_block *, ino_t);
 extern int inode_needs_sync(struct inode *inode);
 extern int generic_delete_inode(struct inode *inode);
-extern int generic_drop_inode(struct inode *inode);
+static inline int generic_drop_inode(struct inode *inode)
+{
+        return !inode->i_nlink || inode_unhashed(inode);
+}
 
 extern struct inode *ilookup5_nowait(struct super_block *sb,
                 unsigned long hashval, int (*test)(struct inode *, void *),