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fs: convert writepage_t callback to pass a folio

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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) <willy@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2023-01-26 20:12:54 +00:00
committed by Andrew Morton
parent 00cdf76012
commit d585bdbeb7
11 changed files with 44 additions and 44 deletions
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2
include/linux/writeback.h
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@@ -366,7 +366,7 @@ int balance_dirty_pages_ratelimited_flags(struct address_space *mapping,
bool wb_over_bg_thresh(struct bdi_writeback *wb);
typedef int (*writepage_t)(struct page *page, struct writeback_control *wbc,
typedef int (*writepage_t)(struct folio *folio, struct writeback_control *wbc,
void *data);
void tag_pages_for_writeback(struct address_space *mapping,