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-rw-r--r--kernel/seccomp.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 65f61077ad50..98b59b5db90b 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -13,7 +13,7 @@
* of Berkeley Packet Filters/Linux Socket Filters.
*/
-#include <linux/atomic.h>
+#include <linux/refcount.h>
#include <linux/audit.h>
#include <linux/compat.h>
#include <linux/coredump.h>
@@ -56,7 +56,7 @@
* to a task_struct (other than @usage).
*/
struct seccomp_filter {
- atomic_t usage;
+ refcount_t usage;
struct seccomp_filter *prev;
struct bpf_prog *prog;
};
@@ -378,7 +378,7 @@ static struct seccomp_filter *seccomp_prepare_filter(struct sock_fprog *fprog)
return ERR_PTR(ret);
}
- atomic_set(&sfilter->usage, 1);
+ refcount_set(&sfilter->usage, 1);
return sfilter;
}
@@ -465,7 +465,7 @@ void get_seccomp_filter(struct task_struct *tsk)
if (!orig)
return;
/* Reference count is bounded by the number of total processes. */
- atomic_inc(&orig->usage);
+ refcount_inc(&orig->usage);
}
static inline void seccomp_filter_free(struct seccomp_filter *filter)
@@ -481,7 +481,7 @@ void put_seccomp_filter(struct task_struct *tsk)
{
struct seccomp_filter *orig = tsk->seccomp.filter;
/* Clean up single-reference branches iteratively. */
- while (orig && atomic_dec_and_test(&orig->usage)) {
+ while (orig && refcount_dec_and_test(&orig->usage)) {
struct seccomp_filter *freeme = orig;
orig = orig->prev;
seccomp_filter_free(freeme);
@@ -641,11 +641,12 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
return 0;
case SECCOMP_RET_KILL:
- default: {
- siginfo_t info;
+ default:
audit_seccomp(this_syscall, SIGSYS, action);
/* Dump core only if this is the last remaining thread. */
if (get_nr_threads(current) == 1) {
+ siginfo_t info;
+
/* Show the original registers in the dump. */
syscall_rollback(current, task_pt_regs(current));
/* Trigger a manual coredump since do_exit skips it. */
@@ -654,7 +655,6 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
}
do_exit(SIGSYS);
}
- }
unreachable();