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-rw-r--r--block/fops.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/block/fops.c b/block/fops.c
index 0abaac705daf..0cf8cf72cdfa 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -410,9 +410,24 @@ static int blkdev_get_block(struct inode *inode, sector_t iblock,
return 0;
}
-static int blkdev_writepage(struct page *page, struct writeback_control *wbc)
+/*
+ * We cannot call mpage_writepages() as it does not take the buffer lock.
+ * We must use block_write_full_folio() directly which holds the buffer
+ * lock. The buffer lock provides the synchronisation with writeback
+ * that filesystems rely on when they use the blockdev's mapping.
+ */
+static int blkdev_writepages(struct address_space *mapping,
+ struct writeback_control *wbc)
{
- return block_write_full_page(page, blkdev_get_block, wbc);
+ struct blk_plug plug;
+ int err;
+
+ blk_start_plug(&plug);
+ err = write_cache_pages(mapping, wbc, block_write_full_folio,
+ blkdev_get_block);
+ blk_finish_plug(&plug);
+
+ return err;
}
static int blkdev_read_folio(struct file *file, struct folio *folio)
@@ -449,7 +464,7 @@ const struct address_space_operations def_blk_aops = {
.invalidate_folio = block_invalidate_folio,
.read_folio = blkdev_read_folio,
.readahead = blkdev_readahead,
- .writepage = blkdev_writepage,
+ .writepages = blkdev_writepages,
.write_begin = blkdev_write_begin,
.write_end = blkdev_write_end,
.migrate_folio = buffer_migrate_folio_norefs,
@@ -500,7 +515,7 @@ const struct address_space_operations def_blk_aops = {
.readahead = blkdev_readahead,
.writepages = blkdev_writepages,
.is_partially_uptodate = iomap_is_partially_uptodate,
- .error_remove_page = generic_error_remove_page,
+ .error_remove_folio = generic_error_remove_folio,
.migrate_folio = filemap_migrate_folio,
};
#endif /* CONFIG_BUFFER_HEAD */