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ad21f15b0f
Now that we have all of the parts in place to use the new mount API, switch our fs_type to use the new callbacks. There are a few things that have to be done at the same time because of the order of operations changes that come along with the new mount API. These must be done in the same patch otherwise things will go wrong. 1. Export and use btrfs_check_options in open_ctree(). This is because the options are done ahead of time, and we need to check them once we have the feature flags loaded. 2. Update the free space cache settings. Since we're coming in with the options already set we need to make sure we don't undo what the user has asked for. 3. Set our sb_flags at init_fs_context time, the fs_context stuff is trying to manage the sb_flagss itself, so move that into init_fs_context and out of the fill super part. Additionally I've marked the unused functions with __maybe_unused and will remove them in a future patch. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.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>
33 lines
922 B
C
33 lines
922 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BTRFS_SUPER_H
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#define BTRFS_SUPER_H
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bool btrfs_check_options(struct btrfs_fs_info *info, unsigned long *mount_opt,
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unsigned long flags);
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int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
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unsigned long new_flags);
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int btrfs_sync_fs(struct super_block *sb, int wait);
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char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
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u64 subvol_objectid);
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void btrfs_set_free_space_cache_settings(struct btrfs_fs_info *fs_info);
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static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)
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{
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return sb->s_fs_info;
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}
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static inline void btrfs_set_sb_rdonly(struct super_block *sb)
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{
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sb->s_flags |= SB_RDONLY;
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set_bit(BTRFS_FS_STATE_RO, &btrfs_sb(sb)->fs_state);
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}
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static inline void btrfs_clear_sb_rdonly(struct super_block *sb)
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{
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sb->s_flags &= ~SB_RDONLY;
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clear_bit(BTRFS_FS_STATE_RO, &btrfs_sb(sb)->fs_state);
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}
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#endif
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