Patch 1-3: fix a potential filesystem inconsistency problem.
Patch 4-8: add a shrinker to release journal_head and remove
bdev_try_to_free_page() callback, and also do some cleanup.
Changes since v2:
- Fix some comments and spelling mistakes on patch 2 and 3.
- Give up the solution of add refcount on super_block and fix the
use-after-free issue in bdev_try_to_free_page(), switch to introduce
a shrinker to free checkpoint buffers' journal_head and remove the
whole callback at all.
Thanks,
Yi.
---------
Changes since v1:
- Do not use j_checkpoint_mutex to fix the filesystem inconsistency
problem, introduce a new mark instead.
- Fix superblock use-after-free issue in blkdev_releasepage().
- Avoid race between bdev_try_to_free_page() and ext4_put_super().
Zhang Yi (8):
jbd2: remove the out label in __jbd2_journal_remove_checkpoint()
jbd2: ensure abort the journal if detect IO error when writing
original buffer back
jbd2: don't abort the journal when freeing buffers
jbd2: remove redundant buffer io error checks
jbd2,ext4: add a shrinker to release checkpointed buffers
jbd2: simplify journal_clean_one_cp_list()
ext4: remove bdev_try_to_free_page() callback
fs: remove bdev_try_to_free_page callback
fs/block_dev.c | 15 ---
fs/ext4/super.c | 29 ++----
fs/jbd2/checkpoint.c | 200 ++++++++++++++++++++++++++++++------
fs/jbd2/journal.c | 101 ++++++++++++++++++
fs/jbd2/transaction.c | 17 ---
include/linux/fs.h | 1 -
include/linux/jbd2.h | 37 +++++++
include/trace/events/jbd2.h | 101 ++++++++++++++++++
8 files changed, 413 insertions(+), 88 deletions(-)
--
2.25.4
