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procfs_read/write(): rewrite synchronization for scalability and correctness

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This commit is contained in:
Balazs Gerofi
2016-12-28 14:17:17 +09:00
parent 536ce9f927
commit 40978d162e
6 changed files with 162 additions and 152 deletions
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3
executer/kernel/mcctrl/ikc.c
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@ -80,7 +80,7 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
break;
case SCD_MSG_PROCFS_ANSWER:
procfs_answer(pisp->arg, pisp->err);
procfs_answer(usrdata, pisp->pid);
break;
case SCD_MSG_SEND_SIGNAL:
@ -288,6 +288,7 @@ int prepare_ikc_channels(ihk_os_t os)
ihk_ikc_listen_port(os, &usrdata->listen_param);
memcpy(&usrdata->listen_param2, &listen_param2, sizeof listen_param2);
ihk_ikc_listen_port(os, &usrdata->listen_param2);
init_waitqueue_head(&usrdata->wq_procfs);
for (i = 0; i < MCCTRL_PER_PROC_DATA_HASH_SIZE; ++i) {
INIT_LIST_HEAD(&usrdata->per_proc_data_hash[i]);