[GIT PULL] erofs updates for 6.5-rc1

[Gao Xiang]

Hi Linus,

Could you consider this pull request for 6.5-rc1?

No outstanding new feature available for this cycle.  Most of these
commits are decompression cleanups which are part of the ongoing
development for subpage/folio compression support as well as xattr
cleanups for the upcoming xattr bloom filter optimization [1].

In addition, there are bugfixes to address some corner cases of
compressed images due to global data de-duplication and arm64 16k
pages.

All commits have been in -next for a while and no potential merge
conflict is observed.

Thanks,
Gao Xiang

[1] https://lore.kernel.org/r/20230621083209.116024-1-jefflexu@linux.alibaba.com

The following changes since commit 7877cb91f1081754a1487c144d85dc0d2e2e7fc4:

  Linux 6.4-rc4 (2023-05-28 07:49:00 -0400)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git tags/erofs-for-6.5-rc1

for you to fetch changes up to 8241fdd3cdfe88e31a3de09a72b5bff661e4534a:

  erofs: clean up zmap.c (2023-06-22 21:16:34 +0800)

----------------------------------------------------------------
Changes since last update:

 - Fix rare I/O hang on deduplicated compressed images due to loop
   hooked chains;

 - Fix compact compression layout of 16k blocks on arm64 devices;

 - Fix atomic context detection of async decompression;

 - Decompression/Xattr code cleanups.

----------------------------------------------------------------
Gao Xiang (8):
      erofs: allocate extra bvec pages directly instead of retrying
      erofs: avoid on-stack pagepool directly passed by arguments
      erofs: kill hooked chains to avoid loops on deduplicated compressed images
      erofs: adapt managed inode operations into folios
      erofs: use struct lockref to replace handcrafted approach
      erofs: use poison pointer to replace the hard-coded address
      erofs: fix compact 4B support for 16k block size
      erofs: clean up zmap.c

Jingbo Xu (6):
      erofs: convert erofs_read_metabuf() to erofs_bread() for xattr
      erofs: use absolute position in xattr iterator
      erofs: unify xattr_iter structures
      erofs: make the size of read data stored in buffer_ofs
      erofs: unify inline/shared xattr iterators for listxattr/getxattr
      erofs: use separate xattr parsers for listxattr/getxattr

Sandeep Dhavale (1):
      erofs: Fix detection of atomic context

Yangtao Li (1):
      erofs: remove unnecessary goto

Yue Hu (3):
      erofs: fold in z_erofs_decompress()
      erofs: remove the member readahead from struct z_erofs_decompress_frontend
      erofs: clean up z_erofs_pcluster_readmore()

 fs/erofs/compress.h     |   3 +-
 fs/erofs/decompressor.c |   8 +-
 fs/erofs/internal.h     |  41 +--
 fs/erofs/super.c        |  69 +----
 fs/erofs/utils.c        |  86 +++----
 fs/erofs/xattr.c        | 670 +++++++++++++++++-------------------------------
 fs/erofs/zdata.c        | 269 +++++++++----------
 fs/erofs/zmap.c         |  75 +++---
 8 files changed, 438 insertions(+), 783 deletions(-)