author: Jan Kara <jack@suse.cz> 2019-11-05 17:44:26 +0100
committer: Theodore Ts'o <tytso@mit.edu> 2019-11-05 16:00:48 -0500
commit: fdc3ef882a5d59c1709a13b5486ae2b1632e12b6
parent: 77444ac4f9537bc4211f928959d5231445e30c6e
Commit Summary:
Diffstat:
1 file changed, 6 insertions, 0 deletions
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index f08073d7bbf5..fa608788b93d 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -371,6 +371,11 @@ int jbd2_journal_revoke(handle_t *handle, unsigned long long blocknr,
}
#endif
+ if (WARN_ON_ONCE(handle->h_revoke_credits <= 0)) {
+ if (!bh_in)
+ brelse(bh);
+ return -EIO;
+ }
/* We really ought not ever to revoke twice in a row without
first having the revoke cancelled: it's illegal to free a
block twice without allocating it in between! */
@@ -391,6 +396,7 @@ int jbd2_journal_revoke(handle_t *handle, unsigned long long blocknr,
__brelse(bh);
}
}
+ handle->h_revoke_credits--;
jbd_debug(2, "insert revoke for block %llu, bh_in=%p\n",blocknr, bh_in);
err = insert_revoke_hash(journal, blocknr,