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authorJohannes Thumshirn <johannes.thumshirn@wdc.com>2021-02-04 13:21:45 +0300
committerDavid Sterba <dsterba@suse.com>2021-02-09 04:32:20 +0300
commitb53429bad3a3555fdbda190192c6e9dfef8e7787 (patch)
treede5cf9539e43cc646910620e340106bba52bc6b4
parent4afd2fe835a0ff87fb88cba7a7daa881d8e14233 (diff)
downloadlinux-b53429bad3a3555fdbda190192c6e9dfef8e7787.tar.xz
btrfs: zoned: do not load fs_info::zoned from incompat flag
Don't set the zoned flag in fs_info as soon as we're encountering the incompat filesystem flag for a zoned filesystem on mount. The zoned flag in fs_info is in a union together with the zone_size, so setting it too early will result in setting an incorrect zone_size as well. Once the correct zone_size is read from the device, we can rely on the zoned flag in fs_info as well to determine if the filesystem is zoned. Reviewed-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/btrfs/disk-io.c2
-rw-r--r--fs/btrfs/zoned.c8
2 files changed, 8 insertions, 2 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 2b6a3df765cd..8551b0fc1b22 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3201,8 +3201,6 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
if (features & BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
btrfs_info(fs_info, "has skinny extents");
- fs_info->zoned = (features & BTRFS_FEATURE_INCOMPAT_ZONED);
-
/*
* flag our filesystem as having big metadata blocks if
* they are bigger than the page size
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 8b3868088c5e..c0840412ccb6 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -432,6 +432,14 @@ int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info)
fs_info->zone_size = zone_size;
fs_info->max_zone_append_size = max_zone_append_size;
+ /*
+ * Check mount options here, because we might change fs_info->zoned
+ * from fs_info->zone_size.
+ */
+ ret = btrfs_check_mountopts_zoned(fs_info);
+ if (ret)
+ goto out;
+
btrfs_info(fs_info, "zoned mode enabled with zone size %llu", zone_size);
out:
return ret;