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authorPeter Zijlstra <peterz@infradead.org>2021-06-11 10:28:17 +0200
committerPeter Zijlstra <peterz@infradead.org>2021-06-18 11:43:09 +0200
commit2f064a59a11ff9bc22e52e9678bc601404c7cb34 (patch)
treeacc246021cd9f158016247f00f238668963daed7 /lib
parent7c3edd6d9cb4d8ea8db5b167dc2eee94d7e4667b (diff)
sched: Change task_struct::state
Change the type and name of task_struct::state. Drop the volatile and shrink it to an 'unsigned int'. Rename it in order to find all uses such that we can use READ_ONCE/WRITE_ONCE as appropriate. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com> Acked-by: Will Deacon <will@kernel.org> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20210611082838.550736351@infradead.org
Diffstat (limited to 'lib')
-rw-r--r--lib/syscall.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/syscall.c b/lib/syscall.c
index ba13e924c430..006e256d2264 100644
--- a/lib/syscall.c
+++ b/lib/syscall.c
@@ -68,13 +68,13 @@ static int collect_syscall(struct task_struct *target, struct syscall_info *info
*/
int task_current_syscall(struct task_struct *target, struct syscall_info *info)
{
- long state;
unsigned long ncsw;
+ unsigned int state;
if (target == current)
return collect_syscall(target, info);
- state = target->state;
+ state = READ_ONCE(target->__state);
if (unlikely(!state))
return -EAGAIN;