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authorSascha Hauer <s.hauer@pengutronix.de>2018-09-07 14:36:27 +0200
committerRichard Weinberger <richard@nod.at>2018-10-23 13:48:21 +0200
commite635cf8c3bbd7b9bd3e282156c6cc4f818b72ee9 (patch)
treefbb160a3565fd646297943f514b0837f22a4c53d /fs/ubifs
parent0e26b6e2551e21df72c140e46819523e1b686009 (diff)
ubifs: Implement ubifs_lpt_lookup using ubifs_pnode_lookup
ubifs_lpt_lookup() starts by looking up the nth pnode in the LPT. We already have this functionality in ubifs_pnode_lookup(). Use this function rather than open coding its functionality. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs')
-rw-r--r--fs/ubifs/lpt.c20
1 files changed, 2 insertions, 18 deletions
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index ed0c67fe7500..5f57af224b8f 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1480,27 +1480,11 @@ struct ubifs_pnode *ubifs_pnode_lookup(struct ubifs_info *c, int i)
*/
struct ubifs_lprops *ubifs_lpt_lookup(struct ubifs_info *c, int lnum)
{
- int err, i, h, iip, shft;
- struct ubifs_nnode *nnode;
+ int i, iip;
struct ubifs_pnode *pnode;
- if (!c->nroot) {
- err = ubifs_read_nnode(c, NULL, 0);
- if (err)
- return ERR_PTR(err);
- }
- nnode = c->nroot;
i = lnum - c->main_first;
- shft = c->lpt_hght * UBIFS_LPT_FANOUT_SHIFT;
- for (h = 1; h < c->lpt_hght; h++) {
- iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
- shft -= UBIFS_LPT_FANOUT_SHIFT;
- nnode = ubifs_get_nnode(c, nnode, iip);
- if (IS_ERR(nnode))
- return ERR_CAST(nnode);
- }
- iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
- pnode = ubifs_get_pnode(c, nnode, iip);
+ pnode = ubifs_pnode_lookup(c, i >> UBIFS_LPT_FANOUT_SHIFT);
if (IS_ERR(pnode))
return ERR_CAST(pnode);
iip = (i & (UBIFS_LPT_FANOUT - 1));