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c3ece6b7ff
Currently the BTRFS_MOUNT_* flags are already beyond 32 bits, this is
going to cause compilation errors for some 32 bit systems, as their
unsigned long is only 32 bits long, thus flag
BTRFS_MOUNT_IGNORESUPERFLAGS overflows and can lead to errors.
Fix the problem by:
- Migrate all existing BTRFS_MOUNT_* flags to unsigned long long
- Migrate all mount option related variables to unsigned long long
* btrfs_fs_info::mount_opt
* btrfs_fs_context::mount_opt
* mount_opt parameter of btrfs_check_options()
* old_opts parameter of btrfs_remount_begin()
* old_opts parameter of btrfs_remount_cleanup()
* mount_opt parameter of btrfs_check_mountopts_zoned()
* mount_opt and opt parameters of check_ro_option()
Fixes: 32e6216512 ("btrfs: introduce new "rescue=ignoresuperflags" mount option")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
39 lines
948 B
C
39 lines
948 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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#include <linux/types.h>
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#include <linux/fs.h>
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#include "fs.h"
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struct super_block;
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struct btrfs_fs_info;
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bool btrfs_check_options(const struct btrfs_fs_info *info,
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unsigned long long *mount_opt,
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unsigned long 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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