f2fs: Use a folio in f2fs_wait_on_block_writeback()

Fetch a folio from the pagecache and use it.  Removes two 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>

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 059dacb..1fcf879 100644 (file)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -4184,7 +4184,7 @@ void f2fs_folio_wait_writeback(struct folio *folio, enum page_type type,
 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr)
 {
        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
-       struct page *cpage;
+       struct folio *cfolio;
 
        if (!f2fs_meta_inode_gc_required(inode))
                return;
@@ -4192,10 +4192,10 @@ void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr)
        if (!__is_valid_data_blkaddr(blkaddr))
                return;
 
-       cpage = find_lock_page(META_MAPPING(sbi), blkaddr);
-       if (cpage) {
-               f2fs_wait_on_page_writeback(cpage, DATA, true, true);
-               f2fs_put_page(cpage, 1);
+       cfolio = filemap_lock_folio(META_MAPPING(sbi), blkaddr);
+       if (!IS_ERR(cfolio)) {
+               f2fs_folio_wait_writeback(cfolio, DATA, true, true);
+               f2fs_folio_put(cfolio, true);
        }
 }