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f2fs: Convert f2fs_finish_read_bio() to use folios

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Use bio_for_each_folio_all() to iterate over each folio in the bio.
This lets us use folio_end_read() which saves an atomic operation and
memory barrier compared to marking the folio uptodate and unlocking
it as two separate operations.  This also removes a few hidden calls
to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2024-11-28 04:58:22 +00:00
committed by Jaegeuk Kim
parent 1cf7460070
commit e0821645dd
1 changed files with 8 additions and 13 deletions
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21
fs/f2fs/data.c
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@@ -136,27 +136,22 @@ struct bio_post_read_ctx {
*/
static void f2fs_finish_read_bio(struct bio *bio, bool in_task)
{
struct bio_vec *bv;
struct bvec_iter_all iter_all;
struct folio_iter fi;
struct bio_post_read_ctx *ctx = bio->bi_private;
bio_for_each_segment_all(bv, bio, iter_all) {
struct page *page = bv->bv_page;
bio_for_each_folio_all(fi, bio) {
struct folio *folio = fi.folio;
if (f2fs_is_compressed_page(page)) {
if (f2fs_is_compressed_page(&folio->page)) {
if (ctx && !ctx->decompression_attempted)
f2fs_end_read_compressed_page(page, true, 0,
f2fs_end_read_compressed_page(&folio->page, true, 0,
in_task);
f2fs_put_page_dic(page, in_task);
f2fs_put_page_dic(&folio->page, in_task);
continue;
}
if (bio->bi_status)
ClearPageUptodate(page);
else
SetPageUptodate(page);
dec_page_count(F2FS_P_SB(page), __read_io_type(page));
unlock_page(page);
dec_page_count(F2FS_F_SB(folio), __read_io_type(&folio->page));
folio_end_read(folio, bio->bi_status == 0);
}
if (ctx)