ext4 changes for 5.6

The following changes since commit 46cf053efec6a3a5f343fead837777efe8252a46:

Linux 5.5-rc3 (2019-12-22 17:02:23 -0800)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git tags/ext4_for_linus

for you to fetch changes up to 7f6225e446cc8dfa4c3c7959a4de3dd03ec277bf:

jbd2: clean __jbd2_journal_abort_hard() and __journal_abort_soft() (2020-01-25 03:01:56 -0500)

----------------------------------------------------------------
This merge window, we've added some performance improvements in how we handle inode locking in the read/write paths, and improving the performance of Direct I/O overwrites. We also now record the error code which caused the first and most recent ext4_error() report in the superblock, to make it easier to root cause problems in production systems. There are also many of the usual cleanups and miscellaneous bug fixes.

----------------------------------------------------------------
Chengguang Xu (2):
ext4: remove unnecessary assignment in ext4_htree_store_dirent()
ext4: choose hardlimit when softlimit is larger than hardlimit in ext4_statfs_project()

Dmitry Monakhov (3):
ext4: fix extent_status fragmentation for plain files
ext4: fix symbolic enum printing in trace output
ext4: fix extent_status trace points

Eric Biggers (20):
ext4: remove unnecessary ifdefs in htree_dirblock_to_tree()
ext4: uninline ext4_inode_journal_mode()
ext4: remove unnecessary selections from EXT3_FS
docs: ext4.rst: add encryption and verity to features list
ext4: handle decryption error in __ext4_block_zero_page_range()
ext4: allow ZERO_RANGE on encrypted files
ext4: only use fscrypt_zeroout_range() on regular files
ext4: re-enable extent zeroout optimization on encrypted files
ext4: fix deadlock allocating crypto bounce page from mempool
ext4: fix deadlock allocating bio_post_read_ctx from mempool
ext4: remove unneeded check for error allocating bio_post_read_ctx
ext4: remove ext4_{ind,ext}_calc_metadata_amount()
ext4: clean up len and offset checks in ext4_fallocate()
ext4: remove redundant S_ISREG() checks from ext4_fallocate()
ext4: make some functions static in extents.c
ext4: fix documentation for ext4_ext_try_to_merge()
ext4: remove obsolete comment from ext4_can_extents_be_merged()
ext4: fix some nonstandard indentation in extents.c
ext4: add missing braces in ext4_ext_drop_refs()
ext4: fix race conditions in ->d_compare() and ->d_hash()

Jan Kara (1):
ext4: Optimize ext4 DIO overwrites

Kai Li (1):
jbd2: clear JBD2_ABORT flag before journal_reset to update log tail info when load journal

Martijn Coenen (1):
ext4: Add EXT4_IOC_FSGETXATTR/EXT4_IOC_FSSETXATTR to compat_ioctl

Naoto Kobayashi (1):
ext4: Delete ext4_kvzvalloc()

Ritesh Harjani (4):
ext4: fix ext4_dax_read/write inode locking sequence for IOCB_NOWAIT
ext4: Start with shared i_rwsem in case of DIO instead of exclusive
ext4: Move to shared i_rwsem even without dioread_nolock mount opt
ext4: remove unused macro MPAGE_DA_EXTENT_TAIL

Shijie Luo (2):
ext4,jbd2: fix comment and code style
jbd2: remove pointless assertion in __journal_remove_journal_head

Theodore Ts'o (8):
ext4: treat buffers contining write errors as valid in ext4_sb_bread() Merge branch 'rk/inode_lock' into dev
ext4: save the error code which triggered an ext4_error() in the superblock
ext4: simulate various I/O and checksum errors when reading metadata
ext4: export information about first/last errors via /sys/fs/ext4/<dev>
ext4: avoid fetching btime in ext4_getattr() unless requested
ext4: drop ext4_kvmalloc()
ext4: make dioread_nolock the default

Vasily Averin (1):
jbd2_seq_info_next should increase position index

wangyan (1):
jbd2: delete the duplicated words in the comments

zhangyi (F) (4):
jbd2: switch to use jbd2_journal_abort() when failed to submit the commit record ext4, jbd2: ensure panic when aborting with zero errno
jbd2: make sure ESHUTDOWN to be recorded in the journal superblock
jbd2: clean __jbd2_journal_abort_hard() and __journal_abort_soft()

zhengbin (1):
ext4: use true,false for bool variable

 Documentation/admin-guide/ext4.rst    |   2 +
 Documentation/filesystems/fscrypt.rst |   6 +--
 fs/ext4/Kconfig                       |   6 ---
 fs/ext4/balloc.c                      |   5 +-
 fs/ext4/dir.c                         |  10 ++--
 fs/ext4/ext4.h                        |  81 +++++++++++++++++++++++++------
 fs/ext4/ext4_extents.h                |   5 --
 fs/ext4/ext4_jbd2.c                   |  25 ++++++++++
 fs/ext4/ext4_jbd2.h                   |  22 +--------
 fs/ext4/extents.c                     | 205 +++++++++++++++++++++++++++++-------------------------------------------------
 fs/ext4/extents_status.h              |   6 +++
 fs/ext4/file.c                        | 203 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------
 fs/ext4/ialloc.c                      |   6 ++-
 fs/ext4/indirect.c                    |  26 ----------
 fs/ext4/inline.c                      |   4 +-
 fs/ext4/inode.c                       |  53 +++++++++++++++-----
 fs/ext4/ioctl.c                       |   2 +
 fs/ext4/mballoc.c                     |   4 ++
 fs/ext4/mmp.c                         |   6 ++-
 fs/ext4/namei.c                       |  20 +++++---
 fs/ext4/page-io.c                     |  19 ++++++--
 fs/ext4/readpage.c                    |  42 ++++++++--------
 fs/ext4/resize.c                      |  10 ++--
 fs/ext4/super.c                       | 122 +++++++++++++++++++++++++++++++++-------------
 fs/ext4/sysfs.c                       |  88 +++++++++++++++++++++++++++++++++-
 fs/ext4/xattr.c                       |   6 ++-
 fs/jbd2/checkpoint.c                  |   2 +-
 fs/jbd2/commit.c                      |   4 +-
 fs/jbd2/journal.c                     | 119 +++++++++++++++++++--------------------------
 fs/jbd2/transaction.c                 |   4 +-
 include/linux/jbd2.h                  |   1 -
 include/trace/events/ext4.h           |  27 +++++++++--
 32 files changed, 709 insertions(+), 432 deletions(-)