Patch 1-2: fix a potential filesystem inconsistency problem.
Patch 3-7: fix two use after free problem.
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 (7):
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: do not free buffers in jbd2_journal_try_to_free_buffers()
ext4: use RCU to protect accessing superblock in blkdev_releasepage()
fs: introduce a usage count into the superblock
ext4: fix race between blkdev_releasepage() and ext4_put_super()
fs/block_dev.c | 13 ++++++----
fs/ext4/inode.c | 6 +++--
fs/ext4/super.c | 32 +++++++++++++++++++++----
fs/jbd2/checkpoint.c | 56 ++++++++++++++++++++++++-------------------
fs/jbd2/journal.c | 9 +++++++
fs/jbd2/transaction.c | 32 ++++++-------------------
include/linux/fs.h | 29 ++++++++++++++++++++++
include/linux/jbd2.h | 7 ++++++
8 files changed, 123 insertions(+), 61 deletions(-)
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2.25.4
