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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-11-03 19:05:47 +0100 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-12-16 21:49:51 +0100 |
| commit | d1bd0b4ebfe0521964e6937195bd2f76866660c7 (patch) | |
| tree | e6c1401ff8a9455e31d7b922d580bc0439296c90 /fs/iomap/buffered-io.c | |
| parent | block: Add bio_for_each_folio_all() (diff) | |
| download | linux-d1bd0b4ebfe0521964e6937195bd2f76866660c7.tar.xz linux-d1bd0b4ebfe0521964e6937195bd2f76866660c7.zip | |
fs/buffer: Convert __block_write_begin_int() to take a folio
There are no plans to convert buffer_head infrastructure to use large
folios, but __block_write_begin_int() is called from iomap, and it's
more convenient and less error-prone if we pass in a folio from iomap.
It also has a nice saving of almost 200 bytes of code from removing
repeated calls to compound_head().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/iomap/buffered-io.c')
| -rw-r--r-- | fs/iomap/buffered-io.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 71a36ae120ee..ecb65167715b 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -603,6 +603,7 @@ static int iomap_write_begin(const struct iomap_iter *iter, loff_t pos, const struct iomap_page_ops *page_ops = iter->iomap.page_ops; const struct iomap *srcmap = iomap_iter_srcmap(iter); struct page *page; + struct folio *folio; int status = 0; BUG_ON(pos + len > iter->iomap.offset + iter->iomap.length); @@ -624,11 +625,12 @@ static int iomap_write_begin(const struct iomap_iter *iter, loff_t pos, status = -ENOMEM; goto out_no_page; } + folio = page_folio(page); if (srcmap->type == IOMAP_INLINE) status = iomap_write_begin_inline(iter, page); else if (srcmap->flags & IOMAP_F_BUFFER_HEAD) - status = __block_write_begin_int(page, pos, len, NULL, srcmap); + status = __block_write_begin_int(folio, pos, len, NULL, srcmap); else status = __iomap_write_begin(iter, pos, len, page); @@ -960,11 +962,12 @@ EXPORT_SYMBOL_GPL(iomap_truncate_page); static loff_t iomap_page_mkwrite_iter(struct iomap_iter *iter, struct page *page) { + struct folio *folio = page_folio(page); loff_t length = iomap_length(iter); int ret; if (iter->iomap.flags & IOMAP_F_BUFFER_HEAD) { - ret = __block_write_begin_int(page, iter->pos, length, NULL, + ret = __block_write_begin_int(folio, iter->pos, length, NULL, &iter->iomap); if (ret) return ret; |