diff options
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); } |