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btrfs: remove "usebackuproot" mount option

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This mount option is marked deprecated since the introduction of
"rescue=" mount option group, in v5.9.

That's already a long time ago, and it should be safe to completely
remove the old "usebackuproot" mount option now.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2026-07-03 19:16:08 +09:30 committed by David Sterba
parent 2fd3f6a271
commit ee2851074b
1 changed files with 0 additions and 11 deletions
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11
fs/btrfs/super.c
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@ -129,7 +129,6 @@ enum {
/* Rescue options */
Opt_rescue,
Opt_usebackuproot,
/* Debugging options */
Opt_enospc_debug,
@ -249,8 +248,6 @@ static const struct fs_parameter_spec btrfs_fs_parameters[] = {
/* Rescue options. */
fsparam_enum("rescue", Opt_rescue, btrfs_parameter_rescue),
/* Deprecated, with alias rescue=usebackuproot */
__fsparam(NULL, "usebackuproot", Opt_usebackuproot, fs_param_deprecated, NULL),
/* For compatibility only, alias for "rescue=nologreplay". */
fsparam_flag("norecovery", Opt_norecovery),
@ -561,14 +558,6 @@ static int btrfs_parse_param(struct fs_context *fc, struct fs_parameter *param)
else
btrfs_set_opt(ctx->mount_opt, AUTO_DEFRAG);
break;
case Opt_usebackuproot:
btrfs_warn(NULL,
"'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead");
btrfs_set_opt(ctx->mount_opt, USEBACKUPROOT);
/* If we're loading the backup roots we can't trust the space cache. */
btrfs_set_opt(ctx->mount_opt, CLEAR_CACHE);
break;
case Opt_skip_balance:
btrfs_set_opt(ctx->mount_opt, SKIP_BALANCE);
break;