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| author |   Chengguang Xu <cgxu519@gmail.com> | 2019-05-10 21:15:47 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2019-05-10 21:15:47 -0400 |
| commit | 0d52154bb0a700abb459a2cbce0a30fc2549b67e (patch) | |
| tree | 77f16584704ea8a684a8f0bd70bc76bfd557e9a9 /include/linux/jbd2.h | |
| parent | ext4: zero out the unused memory region in the extent tree block (diff) | |
| download | wireguard-linux-0d52154bb0a700abb459a2cbce0a30fc2549b67e.tar.xz wireguard-linux-0d52154bb0a700abb459a2cbce0a30fc2549b67e.zip | |
jbd2: fix potential double free
When failing from creating cache jbd2_inode_cache, we will destroy the
previously created cache jbd2_handle_cache twice. This patch fixes
this by moving each cache initialization/destruction to its own
separate, individual function.
Signed-off-by: Chengguang Xu <cgxu519@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Diffstat (limited to 'include/linux/jbd2.h')
| -rw-r--r-- | include/linux/jbd2.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 0f919d5fe84f..2cf6e04b08fc 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1318,7 +1318,7 @@ extern void __wait_on_journal (journal_t *); /* Transaction cache support */ extern void jbd2_journal_destroy_transaction_cache(void); -extern int jbd2_journal_init_transaction_cache(void); +extern int __init jbd2_journal_init_transaction_cache(void); extern void jbd2_journal_free_transaction(transaction_t *); /* @@ -1446,8 +1446,10 @@ static inline void jbd2_free_inode(struct jbd2_inode *jinode) /* Primary revoke support */ #define JOURNAL_REVOKE_DEFAULT_HASH 256 extern int jbd2_journal_init_revoke(journal_t *, int); -extern void jbd2_journal_destroy_revoke_caches(void); -extern int jbd2_journal_init_revoke_caches(void); +extern void jbd2_journal_destroy_revoke_record_cache(void); +extern void jbd2_journal_destroy_revoke_table_cache(void); +extern int __init jbd2_journal_init_revoke_record_cache(void); +extern int __init jbd2_journal_init_revoke_table_cache(void); extern void jbd2_journal_destroy_revoke(journal_t *); extern int jbd2_journal_revoke (handle_t *, unsigned long long, struct buffer_head *); |