From 5fb9bfe01c88788ca3a99c44e44d52abb138595d Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Wed, 9 Feb 2022 12:58:22 -0500 Subject: scsicam: Fix use of page cache Convert scsicam to use a folio instead of a page. There is no need to check the error flag here; read_cache_folio() will return -EIO if the folio cannot be read correctly. Signed-off-by: Matthew Wilcox (Oracle) --- drivers/scsi/scsicam.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers/scsi/scsicam.c') diff --git a/drivers/scsi/scsicam.c b/drivers/scsi/scsicam.c index acdc0aceca5e..e2c7d8ef205f 100644 --- a/drivers/scsi/scsicam.c +++ b/drivers/scsi/scsicam.c @@ -34,15 +34,14 @@ unsigned char *scsi_bios_ptable(struct block_device *dev) { struct address_space *mapping = bdev_whole(dev)->bd_inode->i_mapping; unsigned char *res = NULL; - struct page *page; + struct folio *folio; - page = read_mapping_page(mapping, 0, NULL); - if (IS_ERR(page)) + folio = read_mapping_folio(mapping, 0, NULL); + if (IS_ERR(folio)) return NULL; - if (!PageError(page)) - res = kmemdup(page_address(page) + 0x1be, 66, GFP_KERNEL); - put_page(page); + res = kmemdup(folio_address(folio) + 0x1be, 66, GFP_KERNEL); + folio_put(folio); return res; } EXPORT_SYMBOL(scsi_bios_ptable); -- cgit v1.2.3