projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| c7f13d42 JB |
1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | ||
| 9b569ea0 | 3 | #include "messages.h" |
| c7f13d42 JB |
4 | #include "ctree.h" |
| 5 | #include "fs.h" | |
| 07e81dc9 | 6 | #include "accessors.h" |
| c7f13d42 JB |
7 | |
| 8 | void __btrfs_set_fs_incompat(struct btrfs_fs_info *fs_info, u64 flag, | |
| 9 | const char *name) | |
| 10 | { | |
| 11 | struct btrfs_super_block *disk_super; | |
| 12 | u64 features; | |
| 13 | ||
| 14 | disk_super = fs_info->super_copy; | |
| 15 | features = btrfs_super_incompat_flags(disk_super); | |
| 16 | if (!(features & flag)) { | |
| 17 | spin_lock(&fs_info->super_lock); | |
| 18 | features = btrfs_super_incompat_flags(disk_super); | |
| 19 | if (!(features & flag)) { | |
| 20 | features |= flag; | |
| 21 | btrfs_set_super_incompat_flags(disk_super, features); | |
| 22 | btrfs_info(fs_info, | |
| 23 | "setting incompat feature flag for %s (0x%llx)", | |
| 24 | name, flag); | |
| 25 | } | |
| 26 | spin_unlock(&fs_info->super_lock); | |
| b7625f46 | 27 | set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags); |
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28 | } |
| 29 | } | |
| 30 | ||
| 31 | void __btrfs_clear_fs_incompat(struct btrfs_fs_info *fs_info, u64 flag, | |
| 32 | const char *name) | |
| 33 | { | |
| 34 | struct btrfs_super_block *disk_super; | |
| 35 | u64 features; | |
| 36 | ||
| 37 | disk_super = fs_info->super_copy; | |
| 38 | features = btrfs_super_incompat_flags(disk_super); | |
| 39 | if (features & flag) { | |
| 40 | spin_lock(&fs_info->super_lock); | |
| 41 | features = btrfs_super_incompat_flags(disk_super); | |
| 42 | if (features & flag) { | |
| 43 | features &= ~flag; | |
| 44 | btrfs_set_super_incompat_flags(disk_super, features); | |
| 45 | btrfs_info(fs_info, | |
| 46 | "clearing incompat feature flag for %s (0x%llx)", | |
| 47 | name, flag); | |
| 48 | } | |
| 49 | spin_unlock(&fs_info->super_lock); | |
| b7625f46 | 50 | set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags); |
| c7f13d42 JB |
51 | } |
| 52 | } | |
| 53 | ||
| 54 | void __btrfs_set_fs_compat_ro(struct btrfs_fs_info *fs_info, u64 flag, | |
| 55 | const char *name) | |
| 56 | { | |
| 57 | struct btrfs_super_block *disk_super; | |
| 58 | u64 features; | |
| 59 | ||
| 60 | disk_super = fs_info->super_copy; | |
| 61 | features = btrfs_super_compat_ro_flags(disk_super); | |
| 62 | if (!(features & flag)) { | |
| 63 | spin_lock(&fs_info->super_lock); | |
| 64 | features = btrfs_super_compat_ro_flags(disk_super); | |
| 65 | if (!(features & flag)) { | |
| 66 | features |= flag; | |
| 67 | btrfs_set_super_compat_ro_flags(disk_super, features); | |
| 68 | btrfs_info(fs_info, | |
| 69 | "setting compat-ro feature flag for %s (0x%llx)", | |
| 70 | name, flag); | |
| 71 | } | |
| 72 | spin_unlock(&fs_info->super_lock); | |
| b7625f46 | 73 | set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags); |
| c7f13d42 JB |
74 | } |
| 75 | } | |
| 76 | ||
| 77 | void __btrfs_clear_fs_compat_ro(struct btrfs_fs_info *fs_info, u64 flag, | |
| 78 | const char *name) | |
| 79 | { | |
| 80 | struct btrfs_super_block *disk_super; | |
| 81 | u64 features; | |
| 82 | ||
| 83 | disk_super = fs_info->super_copy; | |
| 84 | features = btrfs_super_compat_ro_flags(disk_super); | |
| 85 | if (features & flag) { | |
| 86 | spin_lock(&fs_info->super_lock); | |
| 87 | features = btrfs_super_compat_ro_flags(disk_super); | |
| 88 | if (features & flag) { | |
| 89 | features &= ~flag; | |
| 90 | btrfs_set_super_compat_ro_flags(disk_super, features); | |
| 91 | btrfs_info(fs_info, | |
| 92 | "clearing compat-ro feature flag for %s (0x%llx)", | |
| 93 | name, flag); | |
| 94 | } | |
| 95 | spin_unlock(&fs_info->super_lock); | |
| b7625f46 | 96 | set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags); |
| c7f13d42 JB |
97 | } |
| 98 | } |