linux-next/mm/folio-compat.c
Matthew Wilcox (Oracle) 4268b48077 mm/filemap: Add folio_end_writeback()
Add an end_page_writeback() wrapper function for users that are not yet
converted to folios.

folio_end_writeback() is less than half the size of end_page_writeback()
at just 105 bytes compared to 228 bytes, due to removing all the
compound_head() calls.  The 30 byte wrapper function makes this a net
saving of 93 bytes.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
2021-09-27 09:27:30 -04:00

26 lines
569 B
C

/*
* Compatibility functions which bloat the callers too much to make inline.
* All of the callers of these functions should be converted to use folios
* eventually.
*/
#include <linux/pagemap.h>
struct address_space *page_mapping(struct page *page)
{
return folio_mapping(page_folio(page));
}
EXPORT_SYMBOL(page_mapping);
void unlock_page(struct page *page)
{
return folio_unlock(page_folio(page));
}
EXPORT_SYMBOL(unlock_page);
void end_page_writeback(struct page *page)
{
return folio_end_writeback(page_folio(page));
}
EXPORT_SYMBOL(end_page_writeback);