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UBIFS: small amendments in the LEB scanning code

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This patch fixes few minor things I've spotted while going through
code:

1. Better document return codes
2. If 'ubifs_scan_a_node()' returns some thing we do not expect,
   treat this as an error.
3. Try to do recovery only when 'ubifs_scan()' returns %-EUCLEAN,
   not on any error.
4. If empty space starts at a non-aligned address, print a message.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Reviewed-by: Adrian Hunter <Adrian.Hunter@nokia.com>
This commit is contained in:
Artem Bityutskiy
2009-06-29 17:59:23 +03:00
parent 086b3640c1
commit ed43f2f06c
3 changed files with 17 additions and 11 deletions
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7
fs/ubifs/replay.c
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@@ -837,9 +837,10 @@ static int replay_log_leb(struct ubifs_info *c, int lnum, int offs, void *sbuf)
dbg_mnt("replay log LEB %d:%d", lnum, offs);
sleb = ubifs_scan(c, lnum, offs, sbuf);
if (IS_ERR(sleb)) {
if (c->need_recovery)
sleb = ubifs_recover_log_leb(c, lnum, offs, sbuf);
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);
if (IS_ERR(sleb))
return PTR_ERR(sleb);
}