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[JFFS2] Use rb_first() and rb_last() cleanup 

Use rb_first() and rb_last() to implement frag_first() and frag_last().

Signed-off-by: Akinbou Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Akinobu Mita 2006-10-20 14:41:05 -07:00 committed by David Woodhouse
parent 29175778b0
commit ea7415cca9
1 changed files with 4 additions and 6 deletions
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10
fs/jffs2/nodelist.h
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@ -294,23 +294,21 @@ static inline int jffs2_encode_dev(union jffs2_device_node *jdev, dev_t rdev)
static inline struct jffs2_node_frag *frag_first(struct rb_root *root)
{
struct rb_node *node = root->rb_node;
struct rb_node *node = rb_first(root);
if (!node)
return NULL;
while(node->rb_left)
node = node->rb_left;
return rb_entry(node, struct jffs2_node_frag, rb);
}
static inline struct jffs2_node_frag *frag_last(struct rb_root *root)
{
struct rb_node *node = root->rb_node;
struct rb_node *node = rb_last(root);
if (!node)
return NULL;
while(node->rb_right)
node = node->rb_right;
return rb_entry(node, struct jffs2_node_frag, rb);
}