99 lines
2.7 KiB
C
99 lines
2.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#include "messages.h"
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#include "ctree.h"
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#include "fs.h"
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#include "accessors.h"
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void __btrfs_set_fs_incompat(struct btrfs_fs_info *fs_info, u64 flag,
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const char *name)
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{
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struct btrfs_super_block *disk_super;
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u64 features;
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disk_super = fs_info->super_copy;
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features = btrfs_super_incompat_flags(disk_super);
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if (!(features & flag)) {
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spin_lock(&fs_info->super_lock);
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features = btrfs_super_incompat_flags(disk_super);
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if (!(features & flag)) {
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features |= flag;
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btrfs_set_super_incompat_flags(disk_super, features);
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btrfs_info(fs_info,
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"setting incompat feature flag for %s (0x%llx)",
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name, flag);
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}
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spin_unlock(&fs_info->super_lock);
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set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags);
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}
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}
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void __btrfs_clear_fs_incompat(struct btrfs_fs_info *fs_info, u64 flag,
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const char *name)
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{
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struct btrfs_super_block *disk_super;
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u64 features;
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disk_super = fs_info->super_copy;
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features = btrfs_super_incompat_flags(disk_super);
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if (features & flag) {
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spin_lock(&fs_info->super_lock);
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features = btrfs_super_incompat_flags(disk_super);
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if (features & flag) {
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features &= ~flag;
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btrfs_set_super_incompat_flags(disk_super, features);
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btrfs_info(fs_info,
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"clearing incompat feature flag for %s (0x%llx)",
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name, flag);
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}
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spin_unlock(&fs_info->super_lock);
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set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags);
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}
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}
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void __btrfs_set_fs_compat_ro(struct btrfs_fs_info *fs_info, u64 flag,
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const char *name)
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{
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struct btrfs_super_block *disk_super;
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u64 features;
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disk_super = fs_info->super_copy;
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features = btrfs_super_compat_ro_flags(disk_super);
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if (!(features & flag)) {
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spin_lock(&fs_info->super_lock);
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features = btrfs_super_compat_ro_flags(disk_super);
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if (!(features & flag)) {
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features |= flag;
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btrfs_set_super_compat_ro_flags(disk_super, features);
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btrfs_info(fs_info,
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"setting compat-ro feature flag for %s (0x%llx)",
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name, flag);
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}
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spin_unlock(&fs_info->super_lock);
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set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags);
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}
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}
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void __btrfs_clear_fs_compat_ro(struct btrfs_fs_info *fs_info, u64 flag,
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const char *name)
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{
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struct btrfs_super_block *disk_super;
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u64 features;
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disk_super = fs_info->super_copy;
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features = btrfs_super_compat_ro_flags(disk_super);
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if (features & flag) {
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spin_lock(&fs_info->super_lock);
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features = btrfs_super_compat_ro_flags(disk_super);
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if (features & flag) {
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features &= ~flag;
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btrfs_set_super_compat_ro_flags(disk_super, features);
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btrfs_info(fs_info,
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"clearing compat-ro feature flag for %s (0x%llx)",
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name, flag);
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}
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spin_unlock(&fs_info->super_lock);
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set_bit(BTRFS_FS_FEATURE_CHANGED, &fs_info->flags);
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}
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}
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