From: Qu Wenruo Date: Tue, 10 May 2022 07:10:18 +0000 (+0800) Subject: btrfs: add "0x" prefix for unsupported optional features X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d5321a0fa8bc49f11bea0b470800962c17d92d8f;p=linux.git btrfs: add "0x" prefix for unsupported optional features The following error message lack the "0x" obviously: cannot mount because of unsupported optional features (4000) Add the prefix to make it less confusing. This can happen on older kernels that try to mount a filesystem with newer features so it makes sense to backport to older trees. CC: stable@vger.kernel.org # 4.14+ Reviewed-by: Nikolay Borisov Signed-off-by: Qu Wenruo Reviewed-by: David Sterba Signed-off-by: David Sterba --- diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 26446d6215c71..f33093513360d 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3612,7 +3612,7 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device ~BTRFS_FEATURE_INCOMPAT_SUPP; if (features) { btrfs_err(fs_info, - "cannot mount because of unsupported optional features (%llx)", + "cannot mount because of unsupported optional features (0x%llx)", features); err = -EINVAL; goto fail_alloc; @@ -3650,7 +3650,7 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device ~BTRFS_FEATURE_COMPAT_RO_SUPP; if (!sb_rdonly(sb) && features) { btrfs_err(fs_info, - "cannot mount read-write because of unsupported optional features (%llx)", + "cannot mount read-write because of unsupported optional features (0x%llx)", features); err = -EINVAL; goto fail_alloc;