11 files changed, 37 insertions, 25 deletions

diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index ce2cd834361..8183ee0d4f9 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -724,7 +724,7 @@ void dbg_dump_leb(const struct ubifs_info *c, int lnum)
 
         printk(KERN_DEBUG "(pid %d) start dumping LEB %d\n",
                current->pid, lnum);
-        sleb = ubifs_scan(c, lnum, 0, c->dbg->buf);
+        sleb = ubifs_scan(c, lnum, 0, c->dbg->buf, 0);
         if (IS_ERR(sleb)) {
                 ubifs_err("scan error %d", (int)PTR_ERR(sleb));
                 return;
diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c
index f0f5f15d384..618c2701d3a 100644
--- a/fs/ubifs/gc.c
+++ b/fs/ubifs/gc.c
@@ -529,7 +529,7 @@ int ubifs_garbage_collect_leb(struct ubifs_info *c, struct ubifs_lprops *lp)
          * We scan the entire LEB even though we only really need to scan up to
          * (c->leb_size - lp->free).
          */
-        sleb = ubifs_scan(c, lnum, 0, c->sbuf);
+        sleb = ubifs_scan(c, lnum, 0, c->sbuf, 0);
         if (IS_ERR(sleb))
                 return PTR_ERR(sleb);
 
diff --git a/fs/ubifs/log.c b/fs/ubifs/log.c
index 56e33772a1e..60dcf6cbd61 100644
--- a/fs/ubifs/log.c
+++ b/fs/ubifs/log.c
@@ -695,7 +695,7 @@ int ubifs_consolidate_log(struct ubifs_info *c)
         lnum = c->ltail_lnum;
         write_lnum = lnum;
         while (1) {
-                sleb = ubifs_scan(c, lnum, 0, c->sbuf);
+                sleb = ubifs_scan(c, lnum, 0, c->sbuf, 0);
                 if (IS_ERR(sleb)) {
                         err = PTR_ERR(sleb);
                         goto out_free;
diff --git a/fs/ubifs/lprops.c b/fs/ubifs/lprops.c
index 4cdd284dea5..00f19b445aa 100644
--- a/fs/ubifs/lprops.c
+++ b/fs/ubifs/lprops.c
@@ -1096,7 +1096,7 @@ static int scan_check_cb(struct ubifs_info *c,
                 }
         }
 
-        sleb = ubifs_scan(c, lnum, 0, c->dbg->buf);
+        sleb = ubifs_scan(c, lnum, 0, c->dbg->buf, 0);
         if (IS_ERR(sleb)) {
                 /*
                  * After an unclean unmount, empty and freeable LEBs
diff --git a/fs/ubifs/master.c b/fs/ubifs/master.c
index a88f33801b9..6f95a168a56 100644
--- a/fs/ubifs/master.c
+++ b/fs/ubifs/master.c
@@ -40,7 +40,7 @@ static int scan_for_master(struct ubifs_info *c)
 
         lnum = UBIFS_MST_LNUM;
 
-        sleb = ubifs_scan(c, lnum, 0, c->sbuf);
+        sleb = ubifs_scan(c, lnum, 0, c->sbuf, 1);
         if (IS_ERR(sleb))
                 return PTR_ERR(sleb);
         nodes_cnt = sleb->nodes_cnt;
@@ -56,7 +56,7 @@ static int scan_for_master(struct ubifs_info *c)
 
         lnum += 1;
 
-        sleb = ubifs_scan(c, lnum, 0, c->sbuf);
+        sleb = ubifs_scan(c, lnum, 0, c->sbuf, 1);
         if (IS_ERR(sleb))
                 return PTR_ERR(sleb);
         if (sleb->nodes_cnt != nodes_cnt)
diff --git a/fs/ubifs/orphan.c b/fs/ubifs/orphan.c
index 152a7b34a14..3119af3cdc5 100644
--- a/fs/ubifs/orphan.c
+++ b/fs/ubifs/orphan.c
@@ -670,7 +670,7 @@ static int kill_orphans(struct ubifs_info *c)
                 struct ubifs_scan_leb *sleb;
 
                 dbg_rcvry("LEB %d", lnum);
-                sleb = ubifs_scan(c, lnum, 0, c->sbuf);
+                sleb = ubifs_scan(c, lnum, 0, c->sbuf, 1);
                 if (IS_ERR(sleb)) {
                         sleb = ubifs_recover_leb(c, lnum, 0, c->sbuf, 0);
                         if (IS_ERR(sleb)) {
@@ -899,7 +899,7 @@ static int dbg_scan_orphans(struct ubifs_info *c, struct check_info *ci)
         for (lnum = c->orph_first; lnum <= c->orph_last; lnum++) {
                 struct ubifs_scan_leb *sleb;
 
-                sleb = ubifs_scan(c, lnum, 0, c->dbg->buf);
+                sleb = ubifs_scan(c, lnum, 0, c->dbg->buf, 0);
                 if (IS_ERR(sleb)) {
                         err = PTR_ERR(sleb);
                         break;
diff --git a/fs/ubifs/recovery.c b/fs/ubifs/recovery.c
index e5f6cf8a115..f94ddf7efba 100644
--- a/fs/ubifs/recovery.c
+++ b/fs/ubifs/recovery.c
@@ -286,7 +286,7 @@ int ubifs_recover_master_node(struct ubifs_info *c)
                 mst = mst2;
         }
 
-        dbg_rcvry("recovered master node from LEB %d",
+        ubifs_msg("recovered master node from LEB %d",
                   (mst == mst1 ? UBIFS_MST_LNUM : UBIFS_MST_LNUM + 1));
 
         memcpy(c->mst_node, mst, UBIFS_MST_NODE_SZ);
@@ -790,7 +790,7 @@ struct ubifs_scan_leb *ubifs_recover_log_leb(struct ubifs_info *c, int lnum,
                  * We can only recover at the end of the log, so check that the
                  * next log LEB is empty or out of date.
                  */
-                sleb = ubifs_scan(c, next_lnum, 0, sbuf);
+                sleb = ubifs_scan(c, next_lnum, 0, sbuf, 0);
                 if (IS_ERR(sleb))
                         return sleb;
                 if (sleb->nodes_cnt) {
diff --git a/fs/ubifs/replay.c b/fs/ubifs/replay.c
index 2970500f32d..5c2d6d759a3 100644
--- a/fs/ubifs/replay.c
+++ b/fs/ubifs/replay.c
@@ -506,7 +506,7 @@ static int replay_bud(struct ubifs_info *c, int lnum, int offs, int jhead,
         if (c->need_recovery)
                 sleb = ubifs_recover_leb(c, lnum, offs, c->sbuf, jhead != GCHD);
         else
-                sleb = ubifs_scan(c, lnum, offs, c->sbuf);
+                sleb = ubifs_scan(c, lnum, offs, c->sbuf, 0);
         if (IS_ERR(sleb))
                 return PTR_ERR(sleb);
 
@@ -836,8 +836,8 @@ static int replay_log_leb(struct ubifs_info *c, int lnum, int offs, void *sbuf)
         const struct ubifs_cs_node *node;
 
         dbg_mnt("replay log LEB %d:%d", lnum, offs);
-        sleb = ubifs_scan(c, lnum, offs, sbuf);
-        if (IS_ERR(sleb) ) {
+        sleb = ubifs_scan(c, lnum, offs, sbuf, c->need_recovery);
+        if (IS_ERR(sleb)) {
                 if (PTR_ERR(sleb) != -EUCLEAN || !c->need_recovery)
                         return PTR_ERR(sleb);
                 sleb = ubifs_recover_log_leb(c, lnum, offs, sbuf);
diff --git a/fs/ubifs/scan.c b/fs/ubifs/scan.c
index 892ebfee4fe..96c52538419 100644
--- a/fs/ubifs/scan.c
+++ b/fs/ubifs/scan.c
@@ -108,10 +108,9 @@ int ubifs_scan_a_node(const struct ubifs_info *c, void *buf, int len, int lnum,
 
                 /* Make the node pads to 8-byte boundary */
                 if ((node_len + pad_len) & 7) {
-                        if (!quiet) {
+                        if (!quiet)
                                 dbg_err("bad padding length %d - %d",
                                         offs, offs + node_len + pad_len);
-                        }
                         return SCANNED_A_BAD_PAD_NODE;
                 }
 
@@ -253,15 +252,19 @@ void ubifs_scanned_corruption(const struct ubifs_info *c, int lnum, int offs,
  * @c: UBIFS file-system description object
  * @lnum: logical eraseblock number
  * @offs: offset to start at (usually zero)
- * @sbuf: scan buffer (must be c->leb_size)
+ * @sbuf: scan buffer (must be of @c->leb_size bytes in size)
+ * @quiet: print no messages
  *
  * This function scans LEB number @lnum and returns complete information about
  * its contents. Returns the scaned information in case of success and,
  * %-EUCLEAN if the LEB neads recovery, and other negative error codes in case
  * of failure.
+ *
+ * If @quiet is non-zero, this function does not print large and scary
+ * error messages and flash dumps in case of errors.
  */
 struct ubifs_scan_leb *ubifs_scan(const struct ubifs_info *c, int lnum,
-                                  int offs, void *sbuf)
+                                  int offs, void *sbuf, int quiet)
 {
         void *buf = sbuf + offs;
         int err, len = c->leb_size - offs;
@@ -280,7 +283,7 @@ struct ubifs_scan_leb *ubifs_scan(const struct ubifs_info *c, int lnum,
 
                 cond_resched();
 
-                ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 0);
+                ret = ubifs_scan_a_node(c, buf, len, lnum, offs, quiet);
                 if (ret > 0) {
                         /* Padding bytes or a valid padding node */
                         offs += ret;
@@ -320,7 +323,9 @@ struct ubifs_scan_leb *ubifs_scan(const struct ubifs_info *c, int lnum,
         }
 
         if (offs % c->min_io_size) {
-                ubifs_err("empty space starts at non-aligned offset %d", offs);
+                if (!quiet)
+                        ubifs_err("empty space starts at non-aligned offset %d",
+                                  offs);
                 goto corrupted;;
         }
 
@@ -331,18 +336,25 @@ struct ubifs_scan_leb *ubifs_scan(const struct ubifs_info *c, int lnum,
                         break;
         for (; len; offs++, buf++, len--)
                 if (*(uint8_t *)buf != 0xff) {
-                        ubifs_err("corrupt empty space at LEB %d:%d",
-                                  lnum, offs);
+                        if (!quiet)
+                                ubifs_err("corrupt empty space at LEB %d:%d",
+                                          lnum, offs);
                         goto corrupted;
                 }
 
         return sleb;
 
 corrupted:
-        ubifs_scanned_corruption(c, lnum, offs, buf);
+        if (!quiet) {
+                ubifs_scanned_corruption(c, lnum, offs, buf);
+                ubifs_err("LEB %d scanning failed", lnum);
+        }
         err = -EUCLEAN;
+        ubifs_scan_destroy(sleb);
+        return ERR_PTR(err);
+
 error:
-        ubifs_err("LEB %d scanning failed", lnum);
+        ubifs_err("LEB %d scanning failed, error %d", lnum, err);
         ubifs_scan_destroy(sleb);
         return ERR_PTR(err);
 }
diff --git a/fs/ubifs/tnc_commit.c b/fs/ubifs/tnc_commit.c
index fde8d127c76..53288e5d604 100644
--- a/fs/ubifs/tnc_commit.c
+++ b/fs/ubifs/tnc_commit.c
@@ -245,7 +245,7 @@ static int layout_leb_in_gaps(struct ubifs_info *c, int *p)
          * it is more comprehensive and less efficient than is needed for this
          * purpose.
          */
-        sleb = ubifs_scan(c, lnum, 0, c->ileb_buf);
+        sleb = ubifs_scan(c, lnum, 0, c->ileb_buf, 0);
         c->ileb_len = 0;
         if (IS_ERR(sleb))
                 return PTR_ERR(sleb);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index a2934909442..9782e7cf8f2 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1451,7 +1451,7 @@ int ubifs_sync_wbufs_by_inode(struct ubifs_info *c, struct inode *inode);
 
 /* scan.c */
 struct ubifs_scan_leb *ubifs_scan(const struct ubifs_info *c, int lnum,
-                                  int offs, void *sbuf);
+                                  int offs, void *sbuf, int quiet);
 void ubifs_scan_destroy(struct ubifs_scan_leb *sleb);
 int ubifs_scan_a_node(const struct ubifs_info *c, void *buf, int len, int lnum,
                       int offs, int quiet);