diff options
| author | Christian Brauner <brauner@kernel.org> | 2025-11-05 14:39:45 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-11-12 10:12:39 +0100 |
| commit | a3f8f8662771285511ae26c4c8d3ba1cd22159b9 (patch) | |
| tree | 69fe91bda4c59849ece99811a19d0a979a8ada33 /fs/super.c | |
| parent | 75fdd57499a392e97fc0cff8df64e44472c07f2f (diff) | |
power: always freeze efivarfs
The efivarfs filesystems must always be frozen and thawed to resync
variable state. Make it so.
Link: https://patch.msgid.link/20251105-vorbild-zutreffen-fe00d1dd98db@brauner
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/super.c')
| -rw-r--r-- | fs/super.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/super.c b/fs/super.c index 5bab94fb7e03..277b84e5c279 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1183,11 +1183,14 @@ static inline bool get_active_super(struct super_block *sb) static const char *filesystems_freeze_ptr = "filesystems_freeze"; -static void filesystems_freeze_callback(struct super_block *sb, void *unused) +static void filesystems_freeze_callback(struct super_block *sb, void *freeze_all_ptr) { if (!sb->s_op->freeze_fs && !sb->s_op->freeze_super) return; + if (freeze_all_ptr && !(sb->s_type->fs_flags & FS_POWER_FREEZE)) + return; + if (!get_active_super(sb)) return; @@ -1201,9 +1204,13 @@ static void filesystems_freeze_callback(struct super_block *sb, void *unused) deactivate_super(sb); } -void filesystems_freeze(void) +void filesystems_freeze(bool freeze_all) { - __iterate_supers(filesystems_freeze_callback, NULL, + void *freeze_all_ptr = NULL; + + if (freeze_all) + freeze_all_ptr = &freeze_all; + __iterate_supers(filesystems_freeze_callback, freeze_all_ptr, SUPER_ITER_UNLOCKED | SUPER_ITER_REVERSE); } |