162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci 362306a36Sopenharmony_ci#include "messages.h" 462306a36Sopenharmony_ci#include "ctree.h" 562306a36Sopenharmony_ci#include "fs.h" 662306a36Sopenharmony_ci#include "accessors.h" 762306a36Sopenharmony_ci 862306a36Sopenharmony_civoid __btrfs_set_fs_incompat(struct btrfs_fs_info *fs_info, u64 flag, 962306a36Sopenharmony_ci const char *name) 1062306a36Sopenharmony_ci{ 1162306a36Sopenharmony_ci struct btrfs_super_block *disk_super; 1262306a36Sopenharmony_ci u64 features; 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci disk_super = fs_info->super_copy; 1562306a36Sopenharmony_ci features = btrfs_super_incompat_flags(disk_super); 1662306a36Sopenharmony_ci if (!(features & flag)) { 1762306a36Sopenharmony_ci spin_lock(&fs_info->super_lock); 1862306a36Sopenharmony_ci features = btrfs_super_incompat_flags(disk_super); 1962306a36Sopenharmony_ci if (!(features & flag)) { 2062306a36Sopenharmony_ci features |= flag; 2162306a36Sopenharmony_ci btrfs_set_super_incompat_flags(disk_super, features); 2262306a36Sopenharmony_ci btrfs_info(fs_info, 2362306a36Sopenharmony_ci "setting incompat feature flag for %s (0x%llx)", 2462306a36Sopenharmony_ci name, flag); 2562306a36Sopenharmony_ci } 2662306a36Sopenharmony_ci spin_unlock(&fs_info->super_lock); 2762306a36Sopenharmony_ci set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags); 2862306a36Sopenharmony_ci } 2962306a36Sopenharmony_ci} 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_civoid __btrfs_clear_fs_incompat(struct btrfs_fs_info *fs_info, u64 flag, 3262306a36Sopenharmony_ci const char *name) 3362306a36Sopenharmony_ci{ 3462306a36Sopenharmony_ci struct btrfs_super_block *disk_super; 3562306a36Sopenharmony_ci u64 features; 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci disk_super = fs_info->super_copy; 3862306a36Sopenharmony_ci features = btrfs_super_incompat_flags(disk_super); 3962306a36Sopenharmony_ci if (features & flag) { 4062306a36Sopenharmony_ci spin_lock(&fs_info->super_lock); 4162306a36Sopenharmony_ci features = btrfs_super_incompat_flags(disk_super); 4262306a36Sopenharmony_ci if (features & flag) { 4362306a36Sopenharmony_ci features &= ~flag; 4462306a36Sopenharmony_ci btrfs_set_super_incompat_flags(disk_super, features); 4562306a36Sopenharmony_ci btrfs_info(fs_info, 4662306a36Sopenharmony_ci "clearing incompat feature flag for %s (0x%llx)", 4762306a36Sopenharmony_ci name, flag); 4862306a36Sopenharmony_ci } 4962306a36Sopenharmony_ci spin_unlock(&fs_info->super_lock); 5062306a36Sopenharmony_ci set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags); 5162306a36Sopenharmony_ci } 5262306a36Sopenharmony_ci} 5362306a36Sopenharmony_ci 5462306a36Sopenharmony_civoid __btrfs_set_fs_compat_ro(struct btrfs_fs_info *fs_info, u64 flag, 5562306a36Sopenharmony_ci const char *name) 5662306a36Sopenharmony_ci{ 5762306a36Sopenharmony_ci struct btrfs_super_block *disk_super; 5862306a36Sopenharmony_ci u64 features; 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_ci disk_super = fs_info->super_copy; 6162306a36Sopenharmony_ci features = btrfs_super_compat_ro_flags(disk_super); 6262306a36Sopenharmony_ci if (!(features & flag)) { 6362306a36Sopenharmony_ci spin_lock(&fs_info->super_lock); 6462306a36Sopenharmony_ci features = btrfs_super_compat_ro_flags(disk_super); 6562306a36Sopenharmony_ci if (!(features & flag)) { 6662306a36Sopenharmony_ci features |= flag; 6762306a36Sopenharmony_ci btrfs_set_super_compat_ro_flags(disk_super, features); 6862306a36Sopenharmony_ci btrfs_info(fs_info, 6962306a36Sopenharmony_ci "setting compat-ro feature flag for %s (0x%llx)", 7062306a36Sopenharmony_ci name, flag); 7162306a36Sopenharmony_ci } 7262306a36Sopenharmony_ci spin_unlock(&fs_info->super_lock); 7362306a36Sopenharmony_ci set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags); 7462306a36Sopenharmony_ci } 7562306a36Sopenharmony_ci} 7662306a36Sopenharmony_ci 7762306a36Sopenharmony_civoid __btrfs_clear_fs_compat_ro(struct btrfs_fs_info *fs_info, u64 flag, 7862306a36Sopenharmony_ci const char *name) 7962306a36Sopenharmony_ci{ 8062306a36Sopenharmony_ci struct btrfs_super_block *disk_super; 8162306a36Sopenharmony_ci u64 features; 8262306a36Sopenharmony_ci 8362306a36Sopenharmony_ci disk_super = fs_info->super_copy; 8462306a36Sopenharmony_ci features = btrfs_super_compat_ro_flags(disk_super); 8562306a36Sopenharmony_ci if (features & flag) { 8662306a36Sopenharmony_ci spin_lock(&fs_info->super_lock); 8762306a36Sopenharmony_ci features = btrfs_super_compat_ro_flags(disk_super); 8862306a36Sopenharmony_ci if (features & flag) { 8962306a36Sopenharmony_ci features &= ~flag; 9062306a36Sopenharmony_ci btrfs_set_super_compat_ro_flags(disk_super, features); 9162306a36Sopenharmony_ci btrfs_info(fs_info, 9262306a36Sopenharmony_ci "clearing compat-ro feature flag for %s (0x%llx)", 9362306a36Sopenharmony_ci name, flag); 9462306a36Sopenharmony_ci } 9562306a36Sopenharmony_ci spin_unlock(&fs_info->super_lock); 9662306a36Sopenharmony_ci set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags); 9762306a36Sopenharmony_ci } 9862306a36Sopenharmony_ci} 99