On 11/14/23 11:32 AM, Oleg Nesterov wrote:
Compile tested. Every lockless usage of next_thread() was wrong, bpf/task_iter.c is the last user and is no exception.
It would be great if you can give more information in the commit message about why the usage of next_thread() is wrong in bpf/task_iter.c. IIUC, some information is presented in : https://lore.kernel.org/all/20230824143112.GA31208@xxxxxxxxxx/ Also, please add 'bpf' in the subject tag ([PATCH bpf 0/3]) to make it clear the patch should be applied to bpf tree.
Oleg. --- kernel/bpf/task_iter.c | 29 +++++++++++------------------ 1 file changed, 11 insertions(+), 18 deletions(-)