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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-05-30 14:45:30 +0300
committerArtem Bityutskiy <dedekind1@gmail.com>2011-07-04 10:54:27 +0300
commitf42eed7cba7f83197b0ffbb023e7d89a0b2fd71d (patch)
treeb5590faffe190cd1401945e13c66684bec2f5b48 /fs/ubifs/misc.h
parent1f42596ec0a7d3d50a494d95e3f1afbd117250f8 (diff)
downloadop-kernel-dev-f42eed7cba7f83197b0ffbb023e7d89a0b2fd71d.zip
op-kernel-dev-f42eed7cba7f83197b0ffbb023e7d89a0b2fd71d.tar.gz
UBIFS: harmonize znode flag helpers
We have 3 znode flags: cow, obsolete, dirty. For the last flag we have a 'ubifs_zn_dirty()' helper function, but for the other 2 flags we use 'test_bit()' directly. This patch makes the situation more consistent and introduces helpers for the other 2 flags: 'ubifs_zn_cow()' and 'ubifs_zn_obsolete()'. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs/misc.h')
-rw-r--r--fs/ubifs/misc.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/ubifs/misc.h b/fs/ubifs/misc.h
index 0b5296a..160cd90 100644
--- a/fs/ubifs/misc.h
+++ b/fs/ubifs/misc.h
@@ -39,6 +39,29 @@ static inline int ubifs_zn_dirty(const struct ubifs_znode *znode)
}
/**
+ * ubifs_zn_obsolete - check if znode is obsolete.
+ * @znode: znode to check
+ *
+ * This helper function returns %1 if @znode is obsolete and %0 otherwise.
+ */
+static inline int ubifs_zn_obsolete(const struct ubifs_znode *znode)
+{
+ return !!test_bit(OBSOLETE_ZNODE, &znode->flags);
+}
+
+/**
+ * ubifs_zn_cow - check if znode has to be copied on write.
+ * @znode: znode to check
+ *
+ * This helper function returns %1 if @znode is has COW flag set and %0
+ * otherwise.
+ */
+static inline int ubifs_zn_cow(const struct ubifs_znode *znode)
+{
+ return !!test_bit(COW_ZNODE, &znode->flags);
+}
+
+/**
* ubifs_wake_up_bgt - wake up background thread.
* @c: UBIFS file-system description object
*/
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