diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-11 15:15:38 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-20 19:26:31 -0500 |
| commit | f9d6966b7f4182f612208f9dad9e2cfaaf667ba3 (patch) | |
| tree | d33c7d6d74661490e84970d68957fc7f804a3bcf | |
| parent | 1ef83969bb12e594fe44ceba406095e80a824c91 (diff) | |
refcount: Split out refcount_types.h
More trimming of sched.h dependencies.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | include/linux/refcount.h | 13 | ||||
| -rw-r--r-- | include/linux/refcount_types.h | 19 | ||||
| -rw-r--r-- | include/linux/sched.h | 2 | ||||
| -rw-r--r-- | include/linux/sched/task.h | 1 |
4 files changed, 22 insertions, 13 deletions
diff --git a/include/linux/refcount.h b/include/linux/refcount.h index a62fcca97486..85c6df0d1bef 100644 --- a/include/linux/refcount.h +++ b/include/linux/refcount.h @@ -96,22 +96,11 @@ #include <linux/bug.h> #include <linux/compiler.h> #include <linux/limits.h> +#include <linux/refcount_types.h> #include <linux/spinlock_types.h> struct mutex; -/** - * typedef refcount_t - variant of atomic_t specialized for reference counts - * @refs: atomic_t counter field - * - * The counter saturates at REFCOUNT_SATURATED and will not move once - * there. This avoids wrapping the counter and causing 'spurious' - * use-after-free bugs. - */ -typedef struct refcount_struct { - atomic_t refs; -} refcount_t; - #define REFCOUNT_INIT(n) { .refs = ATOMIC_INIT(n), } #define REFCOUNT_MAX INT_MAX #define REFCOUNT_SATURATED (INT_MIN / 2) diff --git a/include/linux/refcount_types.h b/include/linux/refcount_types.h new file mode 100644 index 000000000000..162004f06edf --- /dev/null +++ b/include/linux/refcount_types.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_REFCOUNT_TYPES_H +#define _LINUX_REFCOUNT_TYPES_H + +#include <linux/types.h> + +/** + * typedef refcount_t - variant of atomic_t specialized for reference counts + * @refs: atomic_t counter field + * + * The counter saturates at REFCOUNT_SATURATED and will not move once + * there. This avoids wrapping the counter and causing 'spurious' + * use-after-free bugs. + */ +typedef struct refcount_struct { + atomic_t refs; +} refcount_t; + +#endif /* _LINUX_REFCOUNT_TYPES_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 925711edd7f7..414e4df701ec 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -22,7 +22,7 @@ #include <linux/seccomp.h> #include <linux/nodemask_types.h> #include <linux/rcupdate.h> -#include <linux/refcount.h> +#include <linux/refcount_types.h> #include <linux/resource.h> #include <linux/latencytop.h> #include <linux/sched/prio.h> diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index a23af225c898..1880ae21a9cb 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -7,6 +7,7 @@ * functionality: */ +#include <linux/refcount.h> #include <linux/sched.h> #include <linux/uaccess.h> |