From: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> Use ZONEFS_SUPER_SIZE constant instead of PAGE_SIZE allocating memory for reading the super block in zonefs_read_super(). While PAGE_SIZE technically isn't incorrect as Linux doesn't support pages smaller than 4k ZONEFS_SUPER_SIZE is semantically more correct. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> --- This patch is based on top of Christoph's series titled "add more bio helper" specifically on top of "[PATCH 16/17] zonefs: use bdev_rw_virt in zonefs_read_super" --- fs/zonefs/super.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index d165eb979f21..4dc7f967c861 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -1113,11 +1113,12 @@ static int zonefs_read_super(struct super_block *sb) u32 crc, stored_crc; int ret; - super = kmalloc(PAGE_SIZE, GFP_KERNEL); + super = kmalloc(ZONEFS_SUPER_SIZE, GFP_KERNEL); if (!super) return -ENOMEM; - ret = bdev_rw_virt(sb->s_bdev, 0, super, PAGE_SIZE, REQ_OP_READ); + ret = bdev_rw_virt(sb->s_bdev, 0, super, ZONEFS_SUPER_SIZE, + REQ_OP_READ); if (ret) goto free_super; -- 2.43.0
