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| author |   Yongqiang Yang <xiaoqiangnk@gmail.com> | 2012-02-20 17:53:02 -0500 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2012-02-20 17:53:02 -0500 |
| commit | 0c2022eccb01630c037f2024531e9ff1afbe1564 (patch) | |
| tree | 704d54db298e64a84fd60330fd7985d27117d98c /include/linux/jbd2.h | |
| parent | ext4: expand commit callback and (diff) | |
| download | linux-dev-0c2022eccb01630c037f2024531e9ff1afbe1564.tar.xz linux-dev-0c2022eccb01630c037f2024531e9ff1afbe1564.zip | |
jbd2: allocate transaction from separate slab cache
There is normally only a handful of these active at any one time, but
putting them in a separate slab cache makes debugging memory
corruption problems easier. Manish Katiyar also wanted this make it
easier to test memory failure scenarios in the jbd2 layer.
Cc: Manish Katiyar <mkatiyar@gmail.com>
Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/linux/jbd2.h')
| -rw-r--r-- | include/linux/jbd2.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 5557baefed60..46eef77e6ab8 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1020,6 +1020,11 @@ jbd2_journal_write_metadata_buffer(transaction_t *transaction, /* Transaction locking */ 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 void jbd2_journal_free_transaction(transaction_t *); + /* * Journal locking. * |