[PATCH v3 00/12] Some bugfixs for ubi/ubifs

From: Zhihao Cheng
Date: Fri Nov 12 2021 - 07:05:37 EST


v1->v2:
1. Add new fix for ubifs, "ubifs: Fix to add refcount once page is set
private"
2. Update "ubifs: Rename whiteout atomically":
1) Move inode mode in create_whiteout()
2) Don't check O_SYNC for whiteout, because it inherits from the old_dir
3) Remove useless 'synced_i_size ' assignment for whiteout, because
it's always be zero.
4) Remove unused variable 'ui' in create_whiteout()
3. Update "ubifs: setflags: Make dirtied_ino_d 8 bytes aligned":
1) Align dirtied_ino_d with 8 bytes.

v2->v3:
1. Update "ubifs: Rename whiteout atomically":
1) Fix misspelling 'have already check the old dir inode' ->
'have already checked the old dir inode'
2) Fix misspelling "Whiteout don't have non-zero size" ->
"Whiteout have non-zero size"
2. Update "ubifs: Fix to add refcount once page is set private"
1) Fix commit message to explain the root cause.
3. Update "ubi: fastmap: Add all fastmap pebs into 'ai->fastmap' when
fm->used_blocks>=2"
1) Add fastmap used pebs into 'ai' in for-loop, rather than in
two-steps(Add pebs [pnum<UBI_FM_MAX_START] then add pebs
[pnum>=UBI_FM_MAX_START] into 'ai').

Zhihao Cheng (12):
ubifs: rename_whiteout: Fix double free for whiteout_ui->data
ubifs: Fix deadlock in concurrent rename whiteout and inode writeback
ubifs: Fix wrong number of inodes locked by ui_mutex in ubifs_inode
comment
ubifs: Add missing iput if do_tmpfile() failed in rename whiteout
ubifs: Rename whiteout atomically
ubifs: Fix 'ui->dirty' race between do_tmpfile() and writeback work
ubifs: Rectify space amount budget for mkdir/tmpfile operations
ubifs: setflags: Make dirtied_ino_d 8 bytes aligned
ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock()
ubifs: Fix to add refcount once page is set private
ubi: fastmap: Return error code if memory allocation fails in
add_aeb()
ubi: fastmap: Add all fastmap pebs into 'ai->fastmap' when
fm->used_blocks>=2

drivers/mtd/ubi/fastmap.c | 63 ++++------
fs/ubifs/dir.c | 235 +++++++++++++++++++++++---------------
fs/ubifs/file.c | 14 +--
fs/ubifs/io.c | 34 +++++-
fs/ubifs/ioctl.c | 2 +-
fs/ubifs/journal.c | 52 +++++++--
fs/ubifs/ubifs.h | 2 +-
7 files changed, 249 insertions(+), 153 deletions(-)

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2.31.1