+ ufs-use-ufs_get_locked_folio-in-ufs_alloc_lastblock.patch added to mm-unstable branch

+ ufs-use-ufs_get_locked_folio-in-ufs_alloc_lastblock.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: ufs: use ufs_get_locked_folio() in ufs_alloc_lastblock()
has been added to the -mm mm-unstable branch.  Its filename is
     ufs-use-ufs_get_locked_folio-in-ufs_alloc_lastblock.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ufs-use-ufs_get_locked_folio-in-ufs_alloc_lastblock.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: ufs: use ufs_get_locked_folio() in ufs_alloc_lastblock()
Date: Mon, 16 Oct 2023 21:11:11 +0100

Switch to the folio APIs, saving one folio->page->folio conversion.

Link: https://lkml.kernel.org/r/20231016201114.1928083-25-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Pankaj Raghav <p.raghav@samsung.com>
Cc: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/ufs/inode.c |   25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

--- a/fs/ufs/inode.c~ufs-use-ufs_get_locked_folio-in-ufs_alloc_lastblock
+++ a/fs/ufs/inode.c
@@ -1057,7 +1057,7 @@ static int ufs_alloc_lastblock(struct in
 	struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
 	unsigned i, end;
 	sector_t lastfrag;
-	struct page *lastpage;
+	struct folio *folio;
 	struct buffer_head *bh;
 	u64 phys64;
 
@@ -1068,18 +1068,17 @@ static int ufs_alloc_lastblock(struct in
 
 	lastfrag--;
 
-	lastpage = ufs_get_locked_page(mapping, lastfrag >>
+	folio = ufs_get_locked_folio(mapping, lastfrag >>
 				       (PAGE_SHIFT - inode->i_blkbits));
-       if (IS_ERR(lastpage)) {
-               err = -EIO;
-               goto out;
-       }
-
-       end = lastfrag & ((1 << (PAGE_SHIFT - inode->i_blkbits)) - 1);
-       bh = page_buffers(lastpage);
-       for (i = 0; i < end; ++i)
-               bh = bh->b_this_page;
+	if (IS_ERR(folio)) {
+		err = -EIO;
+		goto out;
+	}
 
+	end = lastfrag & ((1 << (PAGE_SHIFT - inode->i_blkbits)) - 1);
+	bh = folio_buffers(folio);
+	for (i = 0; i < end; ++i)
+		bh = bh->b_this_page;
 
        err = ufs_getfrag_block(inode, lastfrag, bh, 1);
 
@@ -1095,7 +1094,7 @@ static int ufs_alloc_lastblock(struct in
 		*/
 	       set_buffer_uptodate(bh);
 	       mark_buffer_dirty(bh);
-	       set_page_dirty(lastpage);
+		folio_mark_dirty(folio);
        }
 
        if (lastfrag >= UFS_IND_FRAGMENT) {
@@ -1113,7 +1112,7 @@ static int ufs_alloc_lastblock(struct in
 	       }
        }
 out_unlock:
-       ufs_put_locked_page(lastpage);
+       ufs_put_locked_folio(folio);
 out:
        return err;
 }
_

Patches currently in -mm which might be from willy@infradead.org are

mm-make-lock_folio_maybe_drop_mmap-vma-lock-aware.patch
mm-call-wp_page_copy-under-the-vma-lock.patch
mm-handle-shared-faults-under-the-vma-lock.patch
mm-handle-cow-faults-under-the-vma-lock.patch
mm-handle-read-faults-under-the-vma-lock.patch
mm-handle-write-faults-to-ro-pages-under-the-vma-lock.patch
iomap-hold-state_lock-over-call-to-ifs_set_range_uptodate.patch
iomap-protect-read_bytes_pending-with-the-state_lock.patch
mm-add-folio_end_read.patch
ext4-use-folio_end_read.patch
buffer-use-folio_end_read.patch
iomap-use-folio_end_read.patch
bitops-add-xor_unlock_is_negative_byte.patch
alpha-implement-xor_unlock_is_negative_byte.patch
m68k-implement-xor_unlock_is_negative_byte.patch
mips-implement-xor_unlock_is_negative_byte.patch
powerpc-implement-arch_xor_unlock_is_negative_byte-on-32-bit.patch
riscv-implement-xor_unlock_is_negative_byte.patch
s390-implement-arch_xor_unlock_is_negative_byte.patch
mm-delete-checks-for-xor_unlock_is_negative_byte.patch
mm-add-folio_xor_flags_has_waiters.patch
mm-make-__end_folio_writeback-return-void.patch
mm-use-folio_xor_flags_has_waiters-in-folio_end_writeback.patch
filemap-remove-use-of-wait-bookmarks.patch
sched-remove-wait-bookmarks.patch
buffer-return-bool-from-grow_dev_folio.patch
buffer-make-folio_create_empty_buffers-return-a-buffer_head.patch
mpage-convert-map_buffer_to_folio-to-folio_create_empty_buffers.patch
ext4-convert-to-folio_create_empty_buffers.patch
buffer-add-get_nth_bh.patch
gfs2-convert-inode-unstuffing-to-use-a-folio.patch
gfs2-convert-gfs2_getbuf-to-folios.patch
gfs2-convert-gfs2_getjdatabuf-to-use-a-folio.patch
gfs2-convert-gfs2_write_buf_to_page-to-use-a-folio.patch
nilfs2-convert-nilfs_mdt_freeze_buffer-to-use-a-folio.patch
nilfs2-convert-nilfs_grab_buffer-to-use-a-folio.patch
nilfs2-convert-nilfs_copy_page-to-nilfs_copy_folio.patch
nilfs2-convert-nilfs_mdt_forget_block-to-use-a-folio.patch
nilfs2-convert-nilfs_mdt_get_frozen_buffer-to-use-a-folio.patch
nilfs2-remove-nilfs_page_get_nth_block.patch
nilfs2-convert-nilfs_lookup_dirty_data_buffers-to-use-folio_create_empty_buffers.patch
ntfs-convert-ntfs_read_block-to-use-a-folio.patch
ntfs-convert-ntfs_writepage-to-use-a-folio.patch
ntfs-convert-ntfs_prepare_pages_for_non_resident_write-to-folios.patch
ntfs3-convert-ntfs_zero_range-to-use-a-folio.patch
ocfs2-convert-ocfs2_map_page_blocks-to-use-a-folio.patch
reiserfs-convert-writepage-to-use-a-folio.patch
ufs-add-ufs_get_locked_folio-and-ufs_put_locked_folio.patch
ufs-use-ufs_get_locked_folio-in-ufs_alloc_lastblock.patch
ufs-convert-ufs_change_blocknr-to-use-folios.patch
ufs-remove-ufs_get_locked_page.patch
buffer-remove-folio_create_empty_buffers.patch