linux.git/fs/ext2/dir.c, branch v6.7

Merge tag 'fs_for_v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2023-11-02T18:19:51+00:00

Pull ext2, udf, and quota updates from Jan Kara:

 - conversion of ext2 directory code to use folios

 - cleanups in UDF declarations

 - bugfix for quota interaction with file encryption

* tag 'fs_for_v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  ext2: Convert ext2_prepare_chunk and ext2_commit_chunk to folios
  ext2: Convert ext2_make_empty() to use a folio
  ext2: Convert ext2_unlink() and ext2_rename() to use folios
  ext2: Convert ext2_delete_entry() to use folios
  ext2: Convert ext2_empty_dir() to use a folio
  ext2: Convert ext2_add_link() to use a folio
  ext2: Convert ext2_readdir to use a folio
  ext2: Add ext2_get_folio()
  ext2: Convert ext2_check_page to ext2_check_folio
  highmem: Add folio_release_kmap()
  udf: Avoid unneeded variable length array in struct fileIdentDesc
  udf: Annotate struct udf_bitmap with __counted_by
  quota: explicitly forbid quota files from being encrypted

ext2: Convert ext2_prepare_chunk and ext2_commit_chunk to folios

2023-10-25T18:31:51+00:00

All callers now have a folio, so pass it in.  Saves one call to
compound_head().

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara

ext2: Convert ext2_make_empty() to use a folio

2023-10-25T18:31:29+00:00

Remove two hidden calls to compound_head() by using the folio API.

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara 
Message-Id: <20230921200746.3303942-9-willy@infradead.org>

ext2: Convert ext2_unlink() and ext2_rename() to use folios

2023-10-25T18:31:29+00:00

This involves changing ext2_find_entry(), ext2_dotdot(),
ext2_inode_by_name(), ext2_set_link() and ext2_delete_entry() to
take a folio.  These were also the last users of ext2_get_page() and
ext2_put_page(), so remove those at the same time.

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara 
Message-Id: <20230921200746.3303942-8-willy@infradead.org>

ext2: Convert ext2_delete_entry() to use folios

2023-10-25T18:28:33+00:00

Save some calls to compound_head() by using the folio API.

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara 
Message-Id: <20230921200746.3303942-7-willy@infradead.org>

ext2: Convert ext2_empty_dir() to use a folio

2023-10-25T18:19:01+00:00

Save two calls to compound_head() by using the folio API.

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara 
Message-Id: <20230921200746.3303942-6-willy@infradead.org>

ext2: Convert ext2_add_link() to use a folio

2023-10-25T18:19:01+00:00

Remove five hidden calls to compound_head() and fix a couple of
places that assumed PAGE_SIZE.

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara 
Message-Id: <20230921200746.3303942-5-willy@infradead.org>

ext2: Convert ext2_readdir to use a folio

2023-10-25T18:19:00+00:00

Saves a hidden call to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara 
Message-Id: <20230921200746.3303942-4-willy@infradead.org>

ext2: Add ext2_get_folio()

2023-10-25T18:19:00+00:00

Convert ext2_get_page() into ext2_get_folio() and keep the original
function around as a temporary wrapper.

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara 
Message-Id: <20230921200746.3303942-3-willy@infradead.org>

ext2: Convert ext2_check_page to ext2_check_folio

2023-10-25T18:19:00+00:00

Support in this function for large folios is limited to supporting
filesystems with block size > PAGE_SIZE.  This new functionality will only
be supported on machines without HIGHMEM, so the problem of kmap_local
only being able to map a single page in the folio can be ignored.
We will not use large folios for ext2 directories on HIGHMEM machines.

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Jan Kara 
Message-Id: <20230921200746.3303942-2-willy@infradead.org>