iomap: Convert iomap_add_to_ioend() to take a folio

We still iterate one block at a time, but now we call compound_head()
less often.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Re

iomap: Convert iomap_add_to_ioend() to take a folio

We still iterate one block at a time, but now we call compound_head()
less often.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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iomap: Simplify iomap_do_writepage()

Rename end_offset to end_pos and offset_into_page to poff to match the
rest of the file. Simplify the handling of the last page straddling
i_size by doing the E

iomap: Simplify iomap_do_writepage()

Rename end_offset to end_pos and offset_into_page to poff to match the
rest of the file. Simplify the handling of the last page straddling
i_size by doing the EOF check based on the byte granularity i_size
instead of converting to a pgoff prematurely.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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iomap: Simplify iomap_writepage_map()

Rename end_offset to end_pos and file_offset to pos to match the rest
of the file. Simplify the loop by calculating nblocks up front instead
of each time aroun

iomap: Simplify iomap_writepage_map()

Rename end_offset to end_pos and file_offset to pos to match the rest
of the file. Simplify the loop by calculating nblocks up front instead
of each time around the loop.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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iomap,xfs: Convert ->discard_page to ->discard_folio

XFS has the only implementation of ->discard_page today, so convert it
to use folios in the same patch as converting the API.

Signed-off-by: Mat

iomap,xfs: Convert ->discard_page to ->discard_folio

XFS has the only implementation of ->discard_page today, so convert it
to use folios in the same patch as converting the API.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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iomap: Convert iomap_write_end_inline to take a folio

This conversion is only safe because iomap only supports writes to inline
data which starts at the beginning of the file.

Signed-off-by: Matthe

iomap: Convert iomap_write_end_inline to take a folio

This conversion is only safe because iomap only supports writes to inline
data which starts at the beginning of the file.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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iomap: Convert iomap_write_begin() and iomap_write_end() to folios

These functions still only work in PAGE_SIZE chunks, but there are
fewer conversions from tail to head pages as a result of this pa

iomap: Convert iomap_write_begin() and iomap_write_end() to folios

These functions still only work in PAGE_SIZE chunks, but there are
fewer conversions from tail to head pages as a result of this patch.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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iomap: Convert __iomap_zero_iter to use a folio

The zero iterator can work in folio-sized chunks instead of page-sized
chunks. This will save a lot of page cache lookups if the file is cached
in la

iomap: Convert __iomap_zero_iter to use a folio

The zero iterator can work in folio-sized chunks instead of page-sized
chunks. This will save a lot of page cache lookups if the file is cached
in large folios.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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iomap: Allow iomap_write_begin() to be called with the full length

In the future, we want write_begin to know the entire length of the
write so that it can choose to allocate large folios. Pass the

iomap: Allow iomap_write_begin() to be called with the full length

In the future, we want write_begin to know the entire length of the
write so that it can choose to allocate large folios. Pass the full
length in from __iomap_zero_iter() and limit it where necessary.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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Merge drm/drm-next into drm-misc-next-fixes

Backmerging to bring drm-misc-next-fixes up to the latest state for
the current release cycle.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

iomap: Convert iomap_page_mkwrite to use a folio

If we write to any page in a folio, we have to mark the entire
folio as dirty, and potentially COW the entire folio, because it'll
all get written ba

iomap: Convert iomap_page_mkwrite to use a folio

If we write to any page in a folio, we have to mark the entire
folio as dirty, and potentially COW the entire folio, because it'll
all get written back as one unit.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

show more ...

iomap: Convert readahead and readpage to use a folio

Handle folios of arbitrary size instead of working in PAGE_SIZE units.
readahead_folio() decreases the page refcount for you, so this is not
quit

iomap: Convert readahead and readpage to use a folio

Handle folios of arbitrary size instead of working in PAGE_SIZE units.
readahead_folio() decreases the page refcount for you, so this is not
quite a mechanical change.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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iomap: Convert iomap_read_inline_data to take a folio

We still only support up to a single page of inline data (at least,
per call to iomap_read_inline_data()), but it can now be written into
the mi

iomap: Convert iomap_read_inline_data to take a folio

We still only support up to a single page of inline data (at least,
per call to iomap_read_inline_data()), but it can now be written into
the middle of a folio in case we decide to allocate a 16KiB page for
a file that's 8.1KiB in size.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

show more ...

iomap: Use folio offsets instead of page offsets

Pass a folio around instead of the page, and make sure the offset
is relative to the start of the folio instead of the start of a page.
Also use size

iomap: Use folio offsets instead of page offsets

Pass a folio around instead of the page, and make sure the offset
is relative to the start of the folio instead of the start of a page.
Also use size_t for offset & length to make it clear that these are byte
counts, and to support >2GB folios in the future.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

show more ...

iomap: Convert bio completions to use folios

Use bio_for_each_folio() to iterate over each folio in the bio
instead of iterating over each page.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infrad

iomap: Convert bio completions to use folios

Use bio_for_each_folio() to iterate over each folio in the bio
instead of iterating over each page.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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iomap: Pass the iomap_page into iomap_set_range_uptodate

All but one caller already has the iomap_page, so we can avoid getting
it again.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org

iomap: Pass the iomap_page into iomap_set_range_uptodate

All but one caller already has the iomap_page, so we can avoid getting
it again.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

show more ...

iomap: Add iomap_invalidate_folio

Keep iomap_invalidatepage around as a wrapper for use in address_space
operations.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christ

iomap: Add iomap_invalidate_folio

Keep iomap_invalidatepage around as a wrapper for use in address_space
operations.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

show more ...

iomap: Convert iomap_releasepage to use a folio

This is an address_space operation, so its argument must remain as a
struct page, but we can use a folio internally.

Signed-off-by: Matthew Wilcox (O

iomap: Convert iomap_releasepage to use a folio

This is an address_space operation, so its argument must remain as a
struct page, but we can use a folio internally.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

show more ...

iomap: Convert iomap_page_release to take a folio

iomap_page_release() was also assuming that it was being passed a
head page.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-

iomap: Convert iomap_page_release to take a folio

iomap_page_release() was also assuming that it was being passed a
head page.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

show more ...

iomap: Convert iomap_page_create to take a folio

This function already assumed it was being passed a head page, so
just formalise that.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

iomap: Convert iomap_page_create to take a folio

This function already assumed it was being passed a head page, so
just formalise that.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

show more ...

iomap: Convert to_iomap_page to take a folio

The big comment about only using a head page can go away now that
it takes a folio argument.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org

iomap: Convert to_iomap_page to take a folio

The big comment about only using a head page can go away now that
it takes a folio argument.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

show more ...

fs/buffer: Convert __block_write_begin_int() to take a folio

There are no plans to convert buffer_head infrastructure to use large
folios, but __block_write_begin_int() is called from iomap, and it'

fs/buffer: Convert __block_write_begin_int() to take a folio

There are no plans to convert buffer_head infrastructure to use large
folios, but __block_write_begin_int() is called from iomap, and it's
more convenient and less error-prone if we pass in a folio from iomap.
It also has a nice saving of almost 200 bytes of code from removing
repeated calls to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

show more ...

Merge drm/drm-next into drm-misc-next

Backmerging for v5.16-rc5. Resolves a conflict between drm-misc-next
and drm-misc-fixes in the vc4 driver.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.d

Merge drm/drm-next into drm-misc-next

Backmerging for v5.16-rc5. Resolves a conflict between drm-misc-next
and drm-misc-fixes in the vc4 driver.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

show more ...

Merge tag 'v5.16-rc5' into rdma.git for-next

Required due to dependencies in following patches.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Merge v5.16-rc5 into drm-next

Thomas Zimmermann requested a fixes backmerge, specifically also for
96c5f82ef0a1 ("drm/vc4: fix error code in vc4_create_object()")

Just a bunch of adjacent changes c

Merge v5.16-rc5 into drm-next

Thomas Zimmermann requested a fixes backmerge, specifically also for
96c5f82ef0a1 ("drm/vc4: fix error code in vc4_create_object()")

Just a bunch of adjacent changes conflicts, even the big pile of them
in vc4.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Merge tag 'v5.16-rc5' into locking/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>