linux-toradex.git/fs/iomap, branch v6.5-rc4

iomap: micro optimize the ki_pos assignment in iomap_file_buffered_write

2023-07-17T15:49:57+00:00

We have the new value for ki_pos right at hand in iter.pos, so assign
that instead of recalculating it from ret.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Darrick J. Wong 
Signed-off-by: Darrick J. Wong 
Reviewed-by: Ritesh Harjani (IBM)

iomap: fix a regression for partial write errors

2023-07-17T15:49:57+00:00

When write* wrote some data it should return the amount of written data
and not the error code that caused it to stop.  Fix a recent regression
in iomap_file_buffered_write that caused it to return the errno instead.

Fixes: 219580eea1ee ("iomap: update ki_pos in iomap_file_buffered_write")
Reported-by: kernel test robot 
Reported-by: Cyril Hrubis 
Signed-off-by: Christoph Hellwig 
Reviewed-by: Darrick J. Wong 
Signed-off-by: Darrick J. Wong 
Reviewed-by: Ritesh Harjani (IBM)

Merge tag 'iomap-6.5-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

2023-07-02T18:14:54+00:00

Pull iomap updates from Darrick Wong:

 - Fix a type signature mismatch

 - Drop Christoph as maintainer

* tag 'iomap-6.5-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  iomap: drop me [hch] from MAINTAINERS for iomap
  fs: iomap: Change the type of blocksize from 'int' to 'unsigned int' in iomap_file_buffered_write_punch_delalloc

fs: iomap: Change the type of blocksize from 'int' to 'unsigned int' in iomap_file_buffered_write_punch_delalloc

2023-06-29T16:22:50+00:00

The return value type of i_blocksize() is 'unsigned int', so the
type of blocksize has been modified from 'int' to 'unsigned int'
to ensure data type consistency.

Signed-off-by: Lu Hongfei 
Reviewed-by: Darrick J. Wong 
Signed-off-by: Darrick J. Wong

Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-06-28T17:28:11+00:00

Pull mm updates from Andrew Morton:

 - Yosry Ahmed brought back some cgroup v1 stats in OOM logs

 - Yosry has also eliminated cgroup's atomic rstat flushing

 - Nhat Pham adds the new cachestat() syscall. It provides userspace
   with the ability to query pagecache status - a similar concept to
   mincore() but more powerful and with improved usability

 - Mel Gorman provides more optimizations for compaction, reducing the
   prevalence of page rescanning

 - Lorenzo Stoakes has done some maintanance work on the
   get_user_pages() interface

 - Liam Howlett continues with cleanups and maintenance work to the
   maple tree code. Peng Zhang also does some work on maple tree

 - Johannes Weiner has done some cleanup work on the compaction code

 - David Hildenbrand has contributed additional selftests for
   get_user_pages()

 - Thomas Gleixner has contributed some maintenance and optimization
   work for the vmalloc code

 - Baolin Wang has provided some compaction cleanups,

 - SeongJae Park continues maintenance work on the DAMON code

 - Huang Ying has done some maintenance on the swap code's usage of
   device refcounting

 - Christoph Hellwig has some cleanups for the filemap/directio code

 - Ryan Roberts provides two patch series which yield some
   rationalization of the kernel's access to pte entries - use the
   provided APIs rather than open-coding accesses

 - Lorenzo Stoakes has some fixes to the interaction between pagecache
   and directio access to file mappings

 - John Hubbard has a series of fixes to the MM selftesting code

 - ZhangPeng continues the folio conversion campaign

 - Hugh Dickins has been working on the pagetable handling code, mainly
   with a view to reducing the load on the mmap_lock

 - Catalin Marinas has reduced the arm64 kmalloc() minimum alignment
   from 128 to 8

 - Domenico Cerasuolo has improved the zswap reclaim mechanism by
   reorganizing the LRU management

 - Matthew Wilcox provides some fixups to make gfs2 work better with the
   buffer_head code

 - Vishal Moola also has done some folio conversion work

 - Matthew Wilcox has removed the remnants of the pagevec code - their
   functionality is migrated over to struct folio_batch

* tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (380 commits)
  mm/hugetlb: remove hugetlb_set_page_subpool()
  mm: nommu: correct the range of mmap_sem_read_lock in task_mem()
  hugetlb: revert use of page_cache_next_miss()
  Revert "page cache: fix page_cache_next/prev_miss off by one"
  mm/vmscan: fix root proactive reclaim unthrottling unbalanced node
  mm: memcg: rename and document global_reclaim()
  mm: kill [add|del]_page_to_lru_list()
  mm: compaction: convert to use a folio in isolate_migratepages_block()
  mm: zswap: fix double invalidate with exclusive loads
  mm: remove unnecessary pagevec includes
  mm: remove references to pagevec
  mm: rename invalidate_mapping_pagevec to mapping_try_invalidate
  mm: remove struct pagevec
  net: convert sunrpc from pagevec to folio_batch
  i915: convert i915_gpu_error to use a folio_batch
  pagevec: rename fbatch_count()
  mm: remove check_move_unevictable_pages()
  drm: convert drm_gem_put_pages() to use a folio_batch
  i915: convert shmem_sg_free_table() to use a folio_batch
  scatterlist: add sg_set_folio()
  ...

iomap: use kiocb_write_and_wait and kiocb_invalidate_pages

2023-06-09T23:25:53+00:00

Use the common helpers for direct I/O page invalidation instead of open
coding the logic.  This leads to a slight reordering of checks in
__iomap_dio_rw to keep the logic straight.

Link: https://lkml.kernel.org/r/20230601145904.1385409-9-hch@lst.de
Signed-off-by: Christoph Hellwig 
Reviewed-by: Damien Le Moal 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Darrick J. Wong 
Cc: Al Viro 
Cc: Andreas Gruenbacher 
Cc: Anna Schumaker 
Cc: Chao Yu 
Cc: Christian Brauner 
Cc: Ilya Dryomov 
Cc: Jaegeuk Kim 
Cc: Jens Axboe 
Cc: Johannes Thumshirn 
Cc: Matthew Wilcox 
Cc: Miklos Szeredi 
Cc: Miklos Szeredi 
Cc: Theodore Ts'o 
Cc: Trond Myklebust 
Cc: Xiubo Li 
Signed-off-by: Andrew Morton

iomap: update ki_pos in iomap_file_buffered_write

2023-06-09T23:25:53+00:00

All callers of iomap_file_buffered_write need to updated ki_pos, move it
into common code.

Link: https://lkml.kernel.org/r/20230601145904.1385409-8-hch@lst.de
Signed-off-by: Christoph Hellwig 
Reviewed-by: Andreas Gruenbacher 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Darrick J. Wong 
Acked-by: Damien Le Moal 
Cc: Al Viro 
Cc: Anna Schumaker 
Cc: Chao Yu 
Cc: Christian Brauner 
Cc: Ilya Dryomov 
Cc: Jaegeuk Kim 
Cc: Jens Axboe 
Cc: Johannes Thumshirn 
Cc: Matthew Wilcox 
Cc: Miklos Szeredi 
Cc: Miklos Szeredi 
Cc: Theodore Ts'o 
Cc: Trond Myklebust 
Cc: Xiubo Li 
Signed-off-by: Andrew Morton

filemap: add a kiocb_invalidate_post_direct_write helper

2023-06-09T23:25:53+00:00

Add a helper to invalidate page cache after a dio write.

Link: https://lkml.kernel.org/r/20230601145904.1385409-7-hch@lst.de
Signed-off-by: Christoph Hellwig 
Reviewed-by: Damien Le Moal 
Reviewed-by: Hannes Reinecke 
Acked-by: Darrick J. Wong 
Cc: Al Viro 
Cc: Andreas Gruenbacher 
Cc: Anna Schumaker 
Cc: Chao Yu 
Cc: Christian Brauner 
Cc: Ilya Dryomov 
Cc: Jaegeuk Kim 
Cc: Jens Axboe 
Cc: Johannes Thumshirn 
Cc: Matthew Wilcox 
Cc: Miklos Szeredi 
Cc: Miklos Szeredi 
Cc: Theodore Ts'o 
Cc: Trond Myklebust 
Cc: Xiubo Li 
Signed-off-by: Andrew Morton

iomap: update ki_pos a little later in iomap_dio_complete

2023-06-09T23:25:52+00:00

Move the ki_pos update down a bit to prepare for a better common helper
that invalidates pages based of an iocb.

Link: https://lkml.kernel.org/r/20230601145904.1385409-3-hch@lst.de
Signed-off-by: Christoph Hellwig 
Reviewed-by: Damien Le Moal 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Darrick J. Wong 
Cc: Al Viro 
Cc: Andreas Gruenbacher 
Cc: Anna Schumaker 
Cc: Chao Yu 
Cc: Christian Brauner 
Cc: Ilya Dryomov 
Cc: Jaegeuk Kim 
Cc: Jens Axboe 
Cc: Johannes Thumshirn 
Cc: Matthew Wilcox 
Cc: Miklos Szeredi 
Cc: Miklos Szeredi 
Cc: Theodore Ts'o 
Cc: Trond Myklebust 
Cc: Xiubo Li 
Signed-off-by: Andrew Morton

fs: iomap: use bio_add_folio_nofail where possible

2023-06-01T15:13:31+00:00

When the iomap buffered-io code can't add a folio to a bio, it allocates a
new bio and adds the folio to that one. This is done using bio_add_folio(),
but doesn't check for errors.

As adding a folio to a newly created bio can't fail, use the newly
introduced bio_add_folio_nofail() function.

Reviewed-by: Christoph Hellwig 
Reviewed-by: Matthew Wilcox (Oracle) 
Signed-off-by: Johannes Thumshirn 
Link: https://lore.kernel.org/r/58fa893c24c67340a63323f09a179fefdca07f2a.1685532726.git.johannes.thumshirn@wdc.com
Signed-off-by: Jens Axboe