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authorMatthew Wilcox (Oracle) <willy@infradead.org>2021-03-04 19:25:25 +0300
committerMatthew Wilcox (Oracle) <willy@infradead.org>2021-09-27 16:27:30 +0300
commita49d0c507759214a7cfd26555382c314db486792 (patch)
treef4f571565c695d3bd8d10f623f0224ad5c54a7a1 /include/linux/pagemap.h
parent490e016f229a79dc7551e7f0e989d2304416c189 (diff)
downloadlinux-a49d0c507759214a7cfd26555382c314db486792.tar.xz
mm/writeback: Add folio_wait_stable()
Move wait_for_stable_page() into the folio compatibility file. folio_wait_stable() avoids a call to compound_head() and is 14 bytes smaller than wait_for_stable_page() was. The net text size grows by 16 bytes as a result of this patch. We can also remove thp_head() as this was the last user. 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>
Diffstat (limited to 'include/linux/pagemap.h')
-rw-r--r--include/linux/pagemap.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index e6013c063986..ee39ad7b42f1 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -771,6 +771,7 @@ int folio_wait_writeback_killable(struct folio *folio);
void end_page_writeback(struct page *page);
void folio_end_writeback(struct folio *folio);
void wait_for_stable_page(struct page *page);
+void folio_wait_stable(struct folio *folio);
void __set_page_dirty(struct page *, struct address_space *, int warn);
int __set_page_dirty_nobuffers(struct page *page);