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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-03-04 12:02:54 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-09-27 09:27:30 -0400 |
| commit | 101c0bf67f50ca0e8b9da97b26f8dc7cb232b4d3 (patch) | |
| tree | da83e363252d5d54335c5ab52d552c06d715f99c /mm/page-writeback.c | |
| parent | a49d0c507759214a7cfd26555382c314db486792 (diff) | |
| download | linux-101c0bf67f50ca0e8b9da97b26f8dc7cb232b4d3.tar.bz2 | |
mm/filemap: Add folio_wait_bit()
Rename wait_on_page_bit() to folio_wait_bit(). We must always wait on
the folio, otherwise we won't be woken up due to the tail page hashing
to a different bucket from the head page.
This commit shrinks the kernel by 770 bytes, mostly due to moving
the page waitqueue lookup into folio_wait_bit_common().
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>
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 0b0b7cd81a93..1d8f2ee2e065 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2889,7 +2889,7 @@ void folio_wait_writeback(struct folio *folio) { while (folio_test_writeback(folio)) { trace_wait_on_page_writeback(&folio->page, folio_mapping(folio)); - wait_on_page_bit(&folio->page, PG_writeback); + folio_wait_bit(folio, PG_writeback); } } EXPORT_SYMBOL_GPL(folio_wait_writeback); @@ -2911,7 +2911,7 @@ int folio_wait_writeback_killable(struct folio *folio) { while (folio_test_writeback(folio)) { trace_wait_on_page_writeback(&folio->page, folio_mapping(folio)); - if (wait_on_page_bit_killable(&folio->page, PG_writeback)) + if (folio_wait_bit_killable(folio, PG_writeback)) return -EINTR; } |