X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=include%2Flinux%2Fdcache_compat.h;fp=include%2Flinux%2Fdcache_compat.h;h=271a0cbef76adfd8bdb72f07363aa0549f7bb3c8;hb=f1a05fa11484d67161606fd1ecf50bf2abc25ced;hp=a42356276a045d86bfdcabfad66b9d9c7a11e309;hpb=94a9bb4709111f5fadb434cce1af6ccb6534e241;p=zfs.git

diff --git a/include/linux/dcache_compat.h b/include/linux/dcache_compat.h
index a423562..271a0cb 100644
--- a/include/linux/dcache_compat.h
+++ b/include/linux/dcache_compat.h
@@ -35,4 +35,29 @@
 #define d_make_root(inode)	d_alloc_root(inode)
 #endif /* HAVE_D_MAKE_ROOT */
 
+/*
+ * 2.6.30 API change,
+ * The const keyword was added to the 'struct dentry_operations' in
+ * the dentry structure.  To handle this we define an appropriate
+ * dentry_operations_t typedef which can be used.
+ */
+#ifdef HAVE_CONST_DENTRY_OPERATIONS
+typedef const struct dentry_operations	dentry_operations_t;
+#else
+typedef struct dentry_operations	dentry_operations_t;
+#endif
+
+/*
+ * 2.6.38 API change,
+ * Added d_set_d_op() helper function which sets some flags in
+ * dentry->d_flags based on which operations are defined.
+ */
+#ifndef HAVE_D_SET_D_OP
+static inline void
+d_set_d_op(struct dentry *dentry, dentry_operations_t *op)
+{
+	dentry->d_op = op;
+}
+#endif /* HAVE_D_SET_D_OP */
+
 #endif /* _ZFS_DCACHE_H */