f2fs: Use a folio more in f2fs_submit_page_bio()

Cache the result of page_folio(fio->page) in a local variable so
we don't have to keep calling it.  Saves a couple of calls to
compound_head() and removes an access to page->mapping.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index aa08ab387e58e481ade70c708ff5a50e969cd41d..cae5fa895b971abe0b7642f9306ca9465e4a150a 100644 (file)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -684,6 +684,7 @@ void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi)
 int f2fs_submit_page_bio(struct f2fs_io_info *fio)
 {
        struct bio *bio;
+       struct folio *fio_folio = page_folio(fio->page);
        struct page *page = fio->encrypted_page ?
                        fio->encrypted_page : fio->page;
 
@@ -697,8 +698,8 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
        /* Allocate a new bio */
        bio = __bio_alloc(fio, 1);
 
-       f2fs_set_bio_crypt_ctx(bio, fio->page->mapping->host,
-                       page_folio(fio->page)->index, fio, GFP_NOIO);
+       f2fs_set_bio_crypt_ctx(bio, fio_folio->mapping->host,
+                       fio_folio->index, fio, GFP_NOIO);
 
        if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
                bio_put(bio);
@@ -706,8 +707,7 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
        }
 
        if (fio->io_wbc && !is_read_io(fio->op))
-               wbc_account_cgroup_owner(fio->io_wbc, page_folio(fio->page),
-                                        PAGE_SIZE);
+               wbc_account_cgroup_owner(fio->io_wbc, fio_folio, PAGE_SIZE);
 
        inc_page_count(fio->sbi, is_read_io(fio->op) ?
                        __read_io_type(page) : WB_DATA_TYPE(fio->page, false));