diff options
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/ipc_sysctl.c | 35 | ||||
| -rw-r--r-- | ipc/mqueue.c | 19 |
2 files changed, 26 insertions, 28 deletions
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c index 2b14ce8ce73f..affd66537e87 100644 --- a/ipc/ipc_sysctl.c +++ b/ipc/ipc_sysctl.c @@ -113,9 +113,6 @@ static int proc_ipc_sem_dointvec(struct ctl_table *table, int write, #define proc_ipc_sem_dointvec NULL #endif -static int zero; -static int one = 1; -static int int_max = INT_MAX; int ipc_mni = IPCMNI; int ipc_mni_shift = IPCMNI_SHIFT; int ipc_min_cycle = RADIX_TREE_MAP_SIZE; @@ -141,7 +138,7 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(init_ipc_ns.shm_ctlmni), .mode = 0644, .proc_handler = proc_ipc_dointvec_minmax, - .extra1 = &zero, + .extra1 = SYSCTL_ZERO, .extra2 = &ipc_mni, }, { @@ -150,8 +147,8 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(init_ipc_ns.shm_rmid_forced), .mode = 0644, .proc_handler = proc_ipc_dointvec_minmax_orphans, - .extra1 = &zero, - .extra2 = &one, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, }, { .procname = "msgmax", @@ -159,8 +156,8 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(init_ipc_ns.msg_ctlmax), .mode = 0644, .proc_handler = proc_ipc_dointvec_minmax, - .extra1 = &zero, - .extra2 = &int_max, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_INT_MAX, }, { .procname = "msgmni", @@ -168,7 +165,7 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(init_ipc_ns.msg_ctlmni), .mode = 0644, .proc_handler = proc_ipc_dointvec_minmax, - .extra1 = &zero, + .extra1 = SYSCTL_ZERO, .extra2 = &ipc_mni, }, { @@ -177,8 +174,8 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_ipc_auto_msgmni, - .extra1 = &zero, - .extra2 = &one, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, }, { .procname = "msgmnb", @@ -186,8 +183,8 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(init_ipc_ns.msg_ctlmnb), .mode = 0644, .proc_handler = proc_ipc_dointvec_minmax, - .extra1 = &zero, - .extra2 = &int_max, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_INT_MAX, }, { .procname = "sem", @@ -203,8 +200,8 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(init_ipc_ns.ids[IPC_SEM_IDS].next_id), .mode = 0644, .proc_handler = proc_ipc_dointvec_minmax, - .extra1 = &zero, - .extra2 = &int_max, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_INT_MAX, }, { .procname = "msg_next_id", @@ -212,8 +209,8 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(init_ipc_ns.ids[IPC_MSG_IDS].next_id), .mode = 0644, .proc_handler = proc_ipc_dointvec_minmax, - .extra1 = &zero, - .extra2 = &int_max, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_INT_MAX, }, { .procname = "shm_next_id", @@ -221,8 +218,8 @@ static struct ctl_table ipc_kern_table[] = { .maxlen = sizeof(init_ipc_ns.ids[IPC_SHM_IDS].next_id), .mode = 0644, .proc_handler = proc_ipc_dointvec_minmax, - .extra1 = &zero, - .extra2 = &int_max, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_INT_MAX, }, #endif {} diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 216cad1ff0d0..65c351564ad0 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -438,7 +438,6 @@ static void mqueue_evict_inode(struct inode *inode) { struct mqueue_inode_info *info; struct user_struct *user; - unsigned long mq_bytes, mq_treesize; struct ipc_namespace *ipc_ns; struct msg_msg *msg, *nmsg; LIST_HEAD(tmp_msg); @@ -461,16 +460,18 @@ static void mqueue_evict_inode(struct inode *inode) free_msg(msg); } - /* Total amount of bytes accounted for the mqueue */ - mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) + - min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) * - sizeof(struct posix_msg_tree_node); - - mq_bytes = mq_treesize + (info->attr.mq_maxmsg * - info->attr.mq_msgsize); - user = info->user; if (user) { + unsigned long mq_bytes, mq_treesize; + + /* Total amount of bytes accounted for the mqueue */ + mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) + + min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) * + sizeof(struct posix_msg_tree_node); + + mq_bytes = mq_treesize + (info->attr.mq_maxmsg * + info->attr.mq_msgsize); + spin_lock(&mq_lock); user->mq_bytes -= mq_bytes; /* |