diff mbox series

[v4,68/68] btrfs: support subpage read write for test

Message ID 20201021062554.68132-69-wqu@suse.com (mailing list archive)
State New, archived
Headers show
Series btrfs: add basic rw support for subpage sector size | expand

Commit Message

Qu Wenruo Oct. 21, 2020, 6:25 a.m. UTC 
Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 fs/btrfs/disk-io.c | 10 ----------
 fs/btrfs/super.c   |  7 -------
 2 files changed, 17 deletions(-)
diff mbox series

Patch

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 2ac980f739dc..8b5f65e6c5fa 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3335,16 +3335,6 @@  int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
 		goto fail_alloc;
 	}
 
-	/* For 4K sector size support, it's only read-only yet */
-	if (PAGE_SIZE == SZ_64K && sectorsize == SZ_4K) {
-		if (!sb_rdonly(sb) || btrfs_super_log_root(disk_super)) {
-			btrfs_err(fs_info,
-				"subpage sector size only support RO yet");
-			err = -EINVAL;
-			goto fail_alloc;
-		}
-	}
-
 	ret = btrfs_init_workqueues(fs_info, fs_devices);
 	if (ret) {
 		err = ret;
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 743a2fadf4ee..25967ecaaf0a 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1922,13 +1922,6 @@  static int btrfs_remount(struct super_block *sb, int *flags, char *data)
 			ret = -EINVAL;
 			goto restore;
 		}
-		if (btrfs_is_subpage(fs_info)) {
-			btrfs_warn(fs_info,
-	"read-write mount is not yet allowed for sector size %u page size %lu",
-				   fs_info->sectorsize, PAGE_SIZE);
-			ret = -EINVAL;
-			goto restore;
-		}
 
 		ret = btrfs_cleanup_fs_roots(fs_info);
 		if (ret)