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btrfs: set clear_cache if we use usebackuproot

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We're currently setting this when we try to load the roots and we see
that usebackuproot is set.  Instead set this at mount option parsing
time.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2023-11-22 12:17:54 -05:00 committed by David Sterba
parent 83e3a40a69
commit 9fb3b1a7fe
2 changed files with 9 additions and 3 deletions
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3
fs/btrfs/disk-io.c
View File

@ -2630,9 +2630,6 @@ static int __cold init_tree_roots(struct btrfs_fs_info *fs_info)
*/
btrfs_set_super_log_root(sb, 0);
/* We can't trust the free space cache either */
btrfs_set_opt(fs_info->mount_opt, CLEAR_CACHE);
btrfs_warn(fs_info, "try to load backup roots slot %d", i);
ret = read_backup_root(fs_info, i);
backup_index = ret;

9
fs/btrfs/super.c
View File

@ -452,6 +452,12 @@ static int btrfs_parse_param(struct fs_context *fc, struct fs_parameter *param)
btrfs_warn(NULL,
"'recovery' 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_nologreplay:
@ -550,6 +556,9 @@ static int btrfs_parse_param(struct fs_context *fc, struct fs_parameter *param)
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);