diff options
| -rw-r--r-- | kernel/acct.c | 77 |
1 files changed, 39 insertions, 38 deletions
diff --git a/kernel/acct.c b/kernel/acct.c index fc71c13..72d4760 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -75,7 +75,8 @@ int acct_parm[3] = {4, 2, 30}; /* * External references and all of the globals. */ -static void do_acct_process(struct pid_namespace *ns, struct file *); +static void do_acct_process(struct bsd_acct_struct *acct, + struct pid_namespace *ns, struct file *); /* * This structure is used so that all the data protected by lock @@ -106,7 +107,7 @@ static void acct_timeout(unsigned long x) /* * Check the amount of free space and suspend/resume accordingly. */ -static int check_free_space(struct file *file) +static int check_free_space(struct bsd_acct_struct *acct, struct file *file) { struct kstatfs sbuf; int res; @@ -115,8 +116,8 @@ static int check_free_space(struct file *file) sector_t suspend; spin_lock(&acct_lock); - res = acct_globals.active; - if (!file || !acct_globals.needcheck) + res = acct->active; + if (!file || !acct->needcheck) goto out; spin_unlock(&acct_lock); @@ -137,33 +138,33 @@ static int check_free_space(struct file *file) act = 0; /* - * If some joker switched acct_globals.file under us we'ld better be + * If some joker switched acct->file under us we'ld better be * silent and _not_ touch anything. */ spin_lock(&acct_lock); - if (file != acct_globals.file) { + if (file != acct->file) { if (act) res = act>0; goto out; } - if (acct_globals.active) { + if (acct->active) { if (act < 0) { - acct_globals.active = 0; + acct->active = 0; printk(KERN_INFO "Process accounting paused\n"); } } else { if (act > 0) { - acct_globals.active = 1; + acct->active = 1; printk(KERN_INFO "Process accounting resumed\n"); } } - del_timer(&acct_globals.timer); - acct_globals.needcheck = 0; - acct_globals.timer.expires = jiffies + ACCT_TIMEOUT*HZ; - add_timer(&acct_globals.timer); - res = acct_globals.active; + del_timer(&acct->timer); + acct->needcheck = 0; + acct->timer.expires = jiffies + ACCT_TIMEOUT*HZ; + add_timer(&acct->timer); + res = acct->active; out: spin_unlock(&acct_lock); return res; @@ -175,34 +176,33 @@ out: * * NOTE: acct_lock MUST be held on entry and exit. */ -static void acct_file_reopen(struct file *file) +static void acct_file_reopen(struct bsd_acct_struct *acct, struct file *file) { struct file *old_acct = NULL; struct pid_namespace *old_ns = NULL; - if (acct_globals.file) { - old_acct = acct_globals.file; - old_ns = acct_globals.ns; - del_timer(&acct_globals.timer); - acct_globals.active = 0; - acct_globals.needcheck = 0; - acct_globals.file = NULL; + if (acct->file) { + old_acct = acct->file; + old_ns = acct->ns; + del_timer(&acct->timer); + acct->active = 0; + acct->needcheck = 0; + acct->file = NULL; } if (file) { - acct_globals.file = file; - acct_globals.ns = get_pid_ns(task_active_pid_ns(current)); - acct_globals.needcheck = 0; - acct_globals.active = 1; + acct->file = file; + acct->ns = get_pid_ns(task_active_pid_ns(current)); + acct->needcheck = 0; + acct->active = 1; /* It's been deleted if it was used before so this is safe */ - setup_timer(&acct_globals.timer, acct_timeout, - (unsigned long)&acct_globals); - acct_globals.timer.expires = jiffies + ACCT_TIMEOUT*HZ; - add_timer(&acct_globals.timer); + setup_timer(&acct->timer, acct_timeout, (unsigned long)acct); + acct->timer.expires = jiffies + ACCT_TIMEOUT*HZ; + add_timer(&acct->timer); } if (old_acct) { mnt_unpin(old_acct->f_path.mnt); spin_unlock(&acct_lock); - do_acct_process(old_ns, old_acct); + do_acct_process(acct, old_ns, old_acct); filp_close(old_acct, NULL); put_pid_ns(old_ns); spin_lock(&acct_lock); @@ -237,7 +237,7 @@ static int acct_on(char *name) spin_lock(&acct_lock); mnt_pin(file->f_path.mnt); - acct_file_reopen(file); + acct_file_reopen(&acct_globals, file); spin_unlock(&acct_lock); mntput(file->f_path.mnt); /* it's pinned, now give up active reference */ @@ -273,7 +273,7 @@ asmlinkage long sys_acct(const char __user *name) error = security_acct(NULL); if (!error) { spin_lock(&acct_lock); - acct_file_reopen(NULL); + acct_file_reopen(&acct_globals, NULL); spin_unlock(&acct_lock); } } @@ -291,7 +291,7 @@ void acct_auto_close_mnt(struct vfsmount *m) { spin_lock(&acct_lock); if (acct_globals.file && acct_globals.file->f_path.mnt == m) - acct_file_reopen(NULL); + acct_file_reopen(&acct_globals, NULL); spin_unlock(&acct_lock); } @@ -307,7 +307,7 @@ void acct_auto_close(struct super_block *sb) spin_lock(&acct_lock); if (acct_globals.file && acct_globals.file->f_path.mnt->mnt_sb == sb) { - acct_file_reopen(NULL); + acct_file_reopen(&acct_globals, NULL); } spin_unlock(&acct_lock); } @@ -426,7 +426,8 @@ static u32 encode_float(u64 value) /* * do_acct_process does all actual work. Caller holds the reference to file. */ -static void do_acct_process(struct pid_namespace *ns, struct file *file) +static void do_acct_process(struct bsd_acct_struct *acct, + struct pid_namespace *ns, struct file *file) { struct pacct_struct *pacct = ¤t->signal->pacct; acct_t ac; @@ -441,7 +442,7 @@ static void do_acct_process(struct pid_namespace *ns, struct file *file) * First check to see if there is enough free_space to continue * the process accounting system. */ - if (!check_free_space(file)) + if (!check_free_space(acct, file)) return; /* @@ -604,7 +605,7 @@ void acct_process(void) ns = get_pid_ns(acct_globals.ns); spin_unlock(&acct_lock); - do_acct_process(ns, file); + do_acct_process(&acct_globals, ns, file); fput(file); put_pid_ns(ns); } |
