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-rw-r--r--fs/btrfs/compat.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/btrfs/compat.h b/fs/btrfs/compat.h
index b3349a66999..d45fb37887b 100644
--- a/fs/btrfs/compat.h
+++ b/fs/btrfs/compat.h
@@ -5,6 +5,23 @@
#define trylock_page(page) (!TestSetPageLocked(page))
#endif
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27)
+static inline struct dentry *d_obtain_alias(struct inode *inode)
+{
+ struct dentry *d;
+
+ if (!inode)
+ return NULL;
+ if (IS_ERR(inode))
+ return ERR_CAST(inode);
+
+ d = d_alloc_anon(inode);
+ if (!d)
+ iput(inode);
+ return d;
+}
+#endif
+
/*
* Even if AppArmor isn't enabled, it still has different prototypes.
* Add more distro/version pairs here to declare which has AppArmor applied.