From 059c01039c0185dbee7ed080f1f2bd22cb1e4dab Mon Sep 17 00:00:00 2001 From: Shin'ichiro Kawasaki Date: Wed, 17 Feb 2021 18:58:11 +0900 Subject: [PATCH] zonefs: Fix file size of zones in full condition Per ZBC/ZAC/ZNS specifications, write pointers may not have valid values when zones are in full condition. However, when zonefs mounts a zoned block device, zonefs refers write pointers to set file size even when the zones are in full condition. This results in wrong file size. To fix this, refer maximum file size in place of write pointers for zones in full condition. Signed-off-by: Shin'ichiro Kawasaki Fixes: 8dcc1a9d90c1 ("fs: New zonefs file system") Cc: # 5.6+ Signed-off-by: Damien Le Moal --- fs/zonefs/super.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index 96f0cb0c29aa..2e2a234d387b 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -256,6 +256,9 @@ static loff_t zonefs_check_zone_condition(struct inode *inode, } inode->i_mode &= ~0222; return i_size_read(inode); + case BLK_ZONE_COND_FULL: + /* The write pointer of full zones is invalid. */ + return zi->i_max_size; default: if (zi->i_ztype == ZONEFS_ZTYPE_CNV) return zi->i_max_size;