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fs: Remove page_mkwrite_check_truncate()

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All callers of this function have now been converted to use
folio_mkwrite_check_truncate().

Signed-off-by: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Link: https://lore.kernel.org/r/20250221204421.3590340-1-willy@infradead.org
Tested-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2025-02-21 20:44:19 +00:00 committed by Christian Brauner
parent d1b452673a
commit 9dcef93363
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1 changed files with 0 additions and 28 deletions
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28
include/linux/pagemap.h
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@ -1602,34 +1602,6 @@ static inline ssize_t folio_mkwrite_check_truncate(struct folio *folio,
return offset;
}
/**
* page_mkwrite_check_truncate - check if page was truncated
* @page: the page to check
* @inode: the inode to check the page against
*
* Returns the number of bytes in the page up to EOF,
* or -EFAULT if the page was truncated.
*/
static inline int page_mkwrite_check_truncate(struct page *page,
struct inode *inode)
{
loff_t size = i_size_read(inode);
pgoff_t index = size >> PAGE_SHIFT;
int offset = offset_in_page(size);
if (page->mapping != inode->i_mapping)
return -EFAULT;
/* page is wholly inside EOF */
if (page->index < index)
return PAGE_SIZE;
/* page is wholly past EOF */
if (page->index > index || !offset)
return -EFAULT;
/* page is partially inside EOF */
return offset;
}
/**
* i_blocks_per_folio - How many blocks fit in this folio.
* @inode: The inode which contains the blocks.