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author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-06-28 19:36:15 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 10:53:48 -0700 |
commit | 6e1cae881a0646f31fe2bda90297d820da1137eb (patch) | |
tree | ffc0c8f309aedb6033165dd2d60bcaf6f4c0c778 /mm/page-writeback.c | |
parent | 0af573780b0b13fceb7fabd49dc1b073cee9a507 (diff) | |
download | linux-6e1cae881a0646f31fe2bda90297d820da1137eb.tar.bz2 |
mm/writeback: move __set_page_dirty() to core mm
Patch series "Further set_page_dirty cleanups".
Prompted by Christoph's recent patches, here are some more patches to
improve the state of set_page_dirty(). They're all from the folio tree,
so they've been tested to a certain extent.
This patch (of 6):
Nothing in __set_page_dirty() is specific to buffer_head, so move it to
mm/page-writeback.c. That removes the only caller of
account_page_dirtied() outside of page-writeback.c, so make it static.
Link: https://lkml.kernel.org/r/20210615162342.1669332-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20210615162342.1669332-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page-writeback.c')
-rw-r--r-- | mm/page-writeback.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 21f4b5972311..1345882c428b 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2425,7 +2425,8 @@ int __set_page_dirty_no_writeback(struct page *page) * * NOTE: This relies on being atomic wrt interrupts. */ -void account_page_dirtied(struct page *page, struct address_space *mapping) +static void account_page_dirtied(struct page *page, + struct address_space *mapping) { struct inode *inode = mapping->host; @@ -2467,6 +2468,30 @@ void account_page_cleaned(struct page *page, struct address_space *mapping, } /* + * Mark the page dirty, and set it dirty in the page cache, and mark the inode + * dirty. + * + * If warn is true, then emit a warning if the page is not uptodate and has + * not been truncated. + * + * The caller must hold lock_page_memcg(). + */ +void __set_page_dirty(struct page *page, struct address_space *mapping, + int warn) +{ + unsigned long flags; + + xa_lock_irqsave(&mapping->i_pages, flags); + if (page->mapping) { /* Race with truncate? */ + WARN_ON_ONCE(warn && !PageUptodate(page)); + account_page_dirtied(page, mapping); + __xa_set_mark(&mapping->i_pages, page_index(page), + PAGECACHE_TAG_DIRTY); + } + xa_unlock_irqrestore(&mapping->i_pages, flags); +} + +/* * For address_spaces which do not use buffers. Just tag the page as dirty in * the xarray. * |