UBIFS: simplify LEB recovery function further

Further simplify 'ubifs_recover_leb()' by noticing that we have to call
'clean_buf()' in any case, and it is fine to call it if the offset is
aligned to 'c->min_io_size'. Thus, we do not have to call it separately
from every "if" - just call it once at the end.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

diff --git a/fs/ubifs/recovery.c b/fs/ubifs/recovery.c
index 4d10b6e..74281f1 100644 (file)
--- a/fs/ubifs/recovery.c
+++ b/fs/ubifs/recovery.c
@@ -662,19 +662,13 @@ struct ubifs_scan_leb *ubifs_recover_leb(struct ubifs_info *c, int lnum,
        }
 
        if (ret == SCANNED_GARBAGE || ret == SCANNED_A_BAD_PAD_NODE) {
-               if (is_last_write(c, buf, offs))
-                       clean_buf(c, &buf, lnum, &offs, &len);
-               else
+               if (!is_last_write(c, buf, offs))
                        goto corrupted_rescan;
        } else if (ret == SCANNED_A_CORRUPT_NODE) {
-               if (no_more_nodes(c, buf, len, lnum, offs))
-                       clean_buf(c, &buf, lnum, &offs, &len);
-               else
+               if (!no_more_nodes(c, buf, len, lnum, offs))
                        goto corrupted_rescan;
        } else if (!is_empty(buf, len)) {
-               if (is_last_write(c, buf, offs)) {
-                       clean_buf(c, &buf, lnum, &offs, &len);
-               } else {
+               if (!is_last_write(c, buf, offs)) {
                        int corruption = first_non_ff(buf, len);
 
                        /*
@@ -694,12 +688,9 @@ struct ubifs_scan_leb *ubifs_recover_leb(struct ubifs_info *c, int lnum,
        if (grouped && drop_incomplete_group(sleb, &offs)) {
                buf = sbuf + offs;
                len = c->leb_size - offs;
-               clean_buf(c, &buf, lnum, &offs, &len);
        }
 
-       if (offs % c->min_io_size)
-               clean_buf(c, &buf, lnum, &offs, &len);
-
+       clean_buf(c, &buf, lnum, &offs, &len);
        ubifs_end_scan(c, sleb, lnum, offs);
 
        err = fix_unclean_leb(c, sleb, start);