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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-04-01 19:38:20 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-04-10 15:08:59 -0700 |
| commit | e03b07d9084d03e896b7f1a598a7f6aa18f6eeda (patch) | |
| tree | 430a37a5bd068ca4ba05c4f7cd256b85edc74d91 /fs/f2fs/recovery.c | |
| parent | 418f6c277011d89c394309e72df9ad058e0a3f7d (diff) | |
| download | linux-e03b07d9084d03e896b7f1a598a7f6aa18f6eeda.tar.gz linux-e03b07d9084d03e896b7f1a598a7f6aa18f6eeda.tar.bz2 linux-e03b07d9084d03e896b7f1a598a7f6aa18f6eeda.zip | |
f2fs: do not recover wrong data index
During the roll-forward recovery, if we found a new data index written fsync
lastly, we need to recover new block address.
But, if that address was corrupted, we should not recover that.
Otherwise, f2fs gets kernel panic from:
In check_index_in_prev_nodes(),
sentry = get_seg_entry(sbi, segno);
--------------------------> out-of-range segno.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/recovery.c')
| -rw-r--r-- | fs/f2fs/recovery.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c index 63b720bd7e75..4b742c96c223 100644 --- a/fs/f2fs/recovery.c +++ b/fs/f2fs/recovery.c @@ -395,7 +395,9 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode, src = datablock_addr(dn.node_page, dn.ofs_in_node); dest = datablock_addr(page, dn.ofs_in_node); - if (src != dest && dest != NEW_ADDR && dest != NULL_ADDR) { + if (src != dest && dest != NEW_ADDR && dest != NULL_ADDR && + dest >= MAIN_BLKADDR(sbi) && dest < MAX_BLKADDR(sbi)) { + if (src == NULL_ADDR) { err = reserve_new_block(&dn); /* We should not get -ENOSPC */ |