linux-stable.git/mm/page-writeback.c, branch linux-6.3.y

fs: convert writepage_t callback to pass a folio

2023-02-03T06:33:34+00:00

Patch series "Convert writepage_t to use a folio".

More folioisation.  I split out the mpage work from everything else
because it completely dominated the patch, but some implementations I just
converted outright.


This patch (of 2):

We always write back an entire folio, but that's currently passed as the
head page.  Convert all filesystems that use write_cache_pages() to expect
a folio instead of a page.

Link: https://lkml.kernel.org/r/20230126201255.1681189-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230126201255.1681189-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton

mm/fs: convert inode_attach_wb() to take a folio

2023-02-03T06:33:19+00:00

Patch series "Writeback folio conversions".

Remove more calls to compound_head() by passing folios around instead of
pages.


This patch (of 2):

The only caller of inode_attach_wb() which doesn't pass NULL already has a
folio, so convert the whole call-chain to take folios.

Link: https://lkml.kernel.org/r/20230116192507.2146150-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230116192507.2146150-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Andrew Morton

page-writeback: convert write_cache_pages() to use filemap_get_folios_tag()

2023-02-03T06:33:14+00:00

Convert function to use folios throughout.  This is in preparation for the
removal of find_get_pages_range_tag().  This change removes 8 calls to
compound_head(), and the function now supports large folios.

Link: https://lkml.kernel.org/r/20230104211448.4804-5-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) 
Reviewed-by: Matthew Wilcow (Oracle) 
Signed-off-by: Andrew Morton

mm: remove zap_page_range and create zap_vma_pages

2023-01-19T01:12:55+00:00

zap_page_range was originally designed to unmap pages within an address
range that could span multiple vmas.  While working on [1], it was
discovered that all callers of zap_page_range pass a range entirely within
a single vma.  In addition, the mmu notification call within zap_page
range does not correctly handle ranges that span multiple vmas.  When
crossing a vma boundary, a new mmu_notifier_range_init/end call pair with
the new vma should be made.

Instead of fixing zap_page_range, do the following:
- Create a new routine zap_vma_pages() that will remove all pages within
  the passed vma.  Most users of zap_page_range pass the entire vma and
  can use this new routine.
- For callers of zap_page_range not passing the entire vma, instead call
  zap_page_range_single().
- Remove zap_page_range.

[1] https://lore.kernel.org/linux-mm/20221114235507.294320-2-mike.kravetz@oracle.com/
Link: https://lkml.kernel.org/r/20230104002732.232573-1-mike.kravetz@oracle.com
Signed-off-by: Mike Kravetz 
Suggested-by: Peter Xu 
Acked-by: Michal Hocko 
Acked-by: Peter Xu 
Acked-by: Heiko Carstens 	[s390]
Reviewed-by: Christoph Hellwig 
Cc: Christian Borntraeger 
Cc: Christian Brauner 
Cc: Dave Hansen 
Cc: David Hildenbrand 
Cc: Eric Dumazet 
Cc: Matthew Wilcox 
Cc: Michael Ellerman 
Cc: Nadav Amit 
Cc: Palmer Dabbelt 
Cc: Rik van Riel 
Cc: Vlastimil Babka 
Cc: Will Deacon 
Signed-off-by: Andrew Morton

mm: remove generic_writepages

2023-01-19T01:12:51+00:00

Now that all external callers are gone, just fold it into do_writepages.

Link: https://lkml.kernel.org/r/20221229161031.391878-7-hch@lst.de
Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Cc: Joel Becker 
Cc: Joseph Qi 
Cc: Konstantin Komarov 
Cc: Mark Fasheh 
Cc: Matthew Wilcox 
Cc: Theodore Ts'o 
Signed-off-by: Andrew Morton

mm/swap: convert deactivate_page() to folio_deactivate()

2023-01-19T01:12:47+00:00

Deactivate_page() has already been converted to use folios, this change
converts it to take in a folio argument instead of calling page_folio(). 
It also renames the function folio_deactivate() to be more consistent with
other folio functions.

[akpm@linux-foundation.org: fix left-over comments, per Yu Zhao]
Link: https://lkml.kernel.org/r/20221221180848.20774-5-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) 
Reviewed-by: Matthew Wilcox (Oracle) 
Reviewed-by: SeongJae Park 
Signed-off-by: Andrew Morton

mm: add bdi_set_min_ratio_no_scale() function

2022-11-30T23:59:06+00:00

This introduces bdi_set_min_ratio_no_scale(). It uses the max
granularity for the ratio. This function by the new sysfs knob
min_ratio_fine.

Link: https://lkml.kernel.org/r/20221119005215.3052436-19-shr@devkernel.io
Signed-off-by: Stefan Roesch 
Cc: Chris Mason 
Cc: Jens Axboe 
Signed-off-by: Andrew Morton

mm: add bdi_set_max_ratio_no_scale() function

2022-11-30T23:59:06+00:00

This introduces bdi_set_max_ratio_no_scale(). It uses the max
granularity for the ratio. This function by the new sysfs knob
max_ratio_fine.

Link: https://lkml.kernel.org/r/20221119005215.3052436-16-shr@devkernel.io
Signed-off-by: Stefan Roesch 
Cc: Chris Mason 
Cc: Jens Axboe 
Signed-off-by: Andrew Morton

mm: add bdi_set_min_bytes() function

2022-11-30T23:59:05+00:00

This introduces the bdi_set_min_bytes() function. The min_bytes function
does not store the min_bytes value. Instead it converts the min_bytes
value into the corresponding ratio value.

Link: https://lkml.kernel.org/r/20221119005215.3052436-13-shr@devkernel.io
Signed-off-by: Stefan Roesch 
Cc: Chris Mason 
Cc: Jens Axboe 
Signed-off-by: Andrew Morton

mm: split off __bdi_set_min_ratio() function

2022-11-30T23:59:05+00:00

This splits off the __bdi_set_min_ratio() function from the
bdi_set_min_ratio() function. The __bdi_set_min_ratio() function will
also be called from the bdi_set_min_bytes() function, which will be
introduced in the next patch.

Link: https://lkml.kernel.org/r/20221119005215.3052436-12-shr@devkernel.io
Signed-off-by: Stefan Roesch 
Cc: Chris Mason 
Cc: Jens Axboe 
Signed-off-by: Andrew Morton