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Diffstat (limited to 'fs/inode.c')
-rw-r--r--fs/inode.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/inode.c b/fs/inode.c
index b03c71957246..64999f144153 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -408,6 +408,19 @@ static void inode_lru_list_add(struct inode *inode)
 	spin_unlock(&inode->i_sb->s_inode_lru_lock);
 }
 
+/*
+ * Add inode to LRU if needed (inode is unused and clean).
+ *
+ * Needs inode->i_lock held.
+ */
+void inode_add_lru(struct inode *inode)
+{
+	if (!(inode->i_state & (I_DIRTY | I_SYNC | I_FREEING | I_WILL_FREE)) &&
+	    !atomic_read(&inode->i_count) && inode->i_sb->s_flags & MS_ACTIVE)
+		inode_lru_list_add(inode);
+}
+
+
 static void inode_lru_list_del(struct inode *inode)
 {
 	spin_lock(&inode->i_sb->s_inode_lru_lock);
@@ -1390,8 +1403,7 @@ static void iput_final(struct inode *inode)
 
 	if (!drop && (sb->s_flags & MS_ACTIVE)) {
 		inode->i_state |= I_REFERENCED;
-		if (!(inode->i_state & (I_DIRTY|I_SYNC)))
-			inode_lru_list_add(inode);
+		inode_add_lru(inode);
 		spin_unlock(&inode->i_lock);
 		return;
 	}