From: Chris Wright <chrisw@osdl.org>
Add mq_bytes field to user_struct, and make sure it's properly initialized.
---
25-akpm/include/linux/sched.h | 2 ++
25-akpm/kernel/user.c | 3 +++
2 files changed, 5 insertions(+)
diff -puN include/linux/sched.h~rlim-add-mq_bytes-to-user_struct include/linux/sched.h
--- 25/include/linux/sched.h~rlim-add-mq_bytes-to-user_struct 2004-05-18 18:31:55.432429712 -0700
+++ 25-akpm/include/linux/sched.h 2004-05-18 18:31:55.437428952 -0700
@@ -323,6 +323,8 @@ struct user_struct {
atomic_t processes; /* How many processes does this user have? */
atomic_t files; /* How many open files does this user have? */
atomic_t sigpending; /* How many pending signals does this user have? */
+ /* protected by mq_lock */
+ unsigned long mq_bytes; /* How many bytes can be allocated to mqueue? */
/* Hash table maintenance information */
struct list_head uidhash_list;
diff -puN kernel/user.c~rlim-add-mq_bytes-to-user_struct kernel/user.c
--- 25/kernel/user.c~rlim-add-mq_bytes-to-user_struct 2004-05-18 18:31:55.433429560 -0700
+++ 25-akpm/kernel/user.c 2004-05-18 18:31:55.438428800 -0700
@@ -32,6 +32,7 @@ struct user_struct root_user = {
.processes = ATOMIC_INIT(1),
.files = ATOMIC_INIT(0),
.sigpending = ATOMIC_INIT(0),
+ .mq_bytes = 0
};
/*
@@ -111,6 +112,8 @@ struct user_struct * alloc_uid(uid_t uid
atomic_set(&new->files, 0);
atomic_set(&new->sigpending, 0);
+ new->mq_bytes = 0;
+
/*
* Before adding this, check whether we raced
* on adding the same user already..
_