ext2, reiserfs, quota and writeback fixes and cleanups for 5.11-rc1

Hello Linus,

could you please pull from

git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git for_v5.11-rc1

The pull contains:
* couple of quota fixes (mostly for problems found by syzbot)
* several ext2 cleanups
* one fix for reiserfs crash on corrupted image
* a fix for spurious warning in writeback code

Top of the tree is f7387170339a. The full shortlog is:

Anant Thazhemadam (1):
fs: quota: fix array-index-out-of-bounds bug by passing correct argument to vfs_cleanup_quota_inode()

Christoph Hellwig (1):
writeback: don't warn on an unregistered BDI in __mark_inode_dirty

Gustavo A. R. Silva (1):
ext2: Fix fall-through warnings for Clang

Ira Weiny (1):
fs/ext2: Use ext2_put_page

Jan Kara (2):
quota: Don't overflow quota file offsets
quota: Sanity-check quota file headers on load

Jonathan Neuschäfer (1):
docs: filesystems: Reduce ext2.rst to one top-level heading

Roman Anufriev (1):
fs/quota: update quota state flags scheme with project quota flags

Rustam Kovhaev (1):
reiserfs: add check for an invalid ih_entry_count

Xianting Tian (1):
ext2: Remove unnecessary blank

The diffstat is

 Documentation/filesystems/ext2.rst |  1 +
 fs/ext2/dir.c                      | 14 ++++++++------
 fs/ext2/ext2.h                     |  7 +++++++
 fs/ext2/inode.c                    |  1 +
 fs/ext2/namei.c                    | 15 +++++----------
 fs/ext2/super.c                    |  2 +-
 fs/fs-writeback.c                  |  4 ----
 fs/quota/dquot.c                   |  2 +-
 fs/quota/quota_tree.c              |  8 ++++----
 fs/quota/quota_v2.c                | 19 +++++++++++++++++++
 fs/reiserfs/stree.c                |  6 ++++++
 include/linux/quota.h              | 15 ++++++++-------
 12 files changed, 61 insertions(+), 33 deletions(-)

Thanks
Honza

Jan Kara <[email protected]>
SUSE Labs, CR