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authorMiklos Szeredi <mszeredi@redhat.com>2016-05-20 22:13:45 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-07-27 09:47:33 -0700
commitc65170792047969e2b129dbf6cdc633503a4087d (patch)
tree209c77937e370f41845d7c699cf16f20f3194af6 /include/linux/dcache.h
parentcff5b236fa152d98bd83d901a0870a585414d340 (diff)
vfs: add d_real_inode() helper
commit a118084432d642eeccb961c7c8cc61525a941fcb upstream. Needed by the following fix. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/dcache.h')
-rw-r--r--include/linux/dcache.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index d81746d3b2da..8d7151eb6ceb 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -603,5 +603,17 @@ static inline struct inode *vfs_select_inode(struct dentry *dentry,
return inode;
}
+/**
+ * d_real_inode - Return the real inode
+ * @dentry: The dentry to query
+ *
+ * If dentry is on an union/overlay, then return the underlying, real inode.
+ * Otherwise return d_inode().
+ */
+static inline struct inode *d_real_inode(struct dentry *dentry)
+{
+ return d_backing_inode(d_real(dentry));
+}
+
#endif /* __LINUX_DCACHE_H */