diff options
Diffstat (limited to 'kernel/acct.c')
| -rw-r--r-- | kernel/acct.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/kernel/acct.c b/kernel/acct.c index 0aad5ca36a8..70d0d88e555 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -89,7 +89,8 @@ struct acct_glbs { struct timer_list timer; }; -static struct acct_glbs acct_globals __cacheline_aligned = {SPIN_LOCK_UNLOCKED}; +static struct acct_glbs acct_globals __cacheline_aligned = + {__SPIN_LOCK_UNLOCKED(acct_globals.lock)}; /* * Called whenever the timer says to check the free space. @@ -117,7 +118,7 @@ static int check_free_space(struct file *file) spin_unlock(&acct_globals.lock); /* May block */ - if (vfs_statfs(file->f_dentry, &sbuf)) + if (vfs_statfs(file->f_path.dentry, &sbuf)) return res; suspend = sbuf.f_blocks * SUSPEND; resume = sbuf.f_blocks * RESUME; @@ -193,7 +194,7 @@ static void acct_file_reopen(struct file *file) add_timer(&acct_globals.timer); } if (old_acct) { - mnt_unpin(old_acct->f_vfsmnt); + mnt_unpin(old_acct->f_path.mnt); spin_unlock(&acct_globals.lock); do_acct_process(old_acct); filp_close(old_acct, NULL); @@ -211,7 +212,7 @@ static int acct_on(char *name) if (IS_ERR(file)) return PTR_ERR(file); - if (!S_ISREG(file->f_dentry->d_inode->i_mode)) { + if (!S_ISREG(file->f_path.dentry->d_inode->i_mode)) { filp_close(file, NULL); return -EACCES; } @@ -228,11 +229,11 @@ static int acct_on(char *name) } spin_lock(&acct_globals.lock); - mnt_pin(file->f_vfsmnt); + mnt_pin(file->f_path.mnt); acct_file_reopen(file); spin_unlock(&acct_globals.lock); - mntput(file->f_vfsmnt); /* it's pinned, now give up active reference */ + mntput(file->f_path.mnt); /* it's pinned, now give up active reference */ return 0; } @@ -282,7 +283,7 @@ asmlinkage long sys_acct(const char __user *name) void acct_auto_close_mnt(struct vfsmount *m) { spin_lock(&acct_globals.lock); - if (acct_globals.file && acct_globals.file->f_vfsmnt == m) + if (acct_globals.file && acct_globals.file->f_path.mnt == m) acct_file_reopen(NULL); spin_unlock(&acct_globals.lock); } @@ -298,7 +299,7 @@ void acct_auto_close(struct super_block *sb) { spin_lock(&acct_globals.lock); if (acct_globals.file && - acct_globals.file->f_vfsmnt->mnt_sb == sb) { + acct_globals.file->f_path.mnt->mnt_sb == sb) { acct_file_reopen(NULL); } spin_unlock(&acct_globals.lock); @@ -427,6 +428,7 @@ static void do_acct_process(struct file *file) u64 elapsed; u64 run_time; struct timespec uptime; + struct tty_struct *tty; /* * First check to see if there is enough free_space to continue @@ -483,16 +485,9 @@ static void do_acct_process(struct file *file) ac.ac_ppid = current->parent->tgid; #endif - mutex_lock(&tty_mutex); - /* FIXME: Whoever is responsible for current->signal locking needs - to use the same locking all over the kernel and document it */ - read_lock(&tasklist_lock); - ac.ac_tty = current->signal->tty ? - old_encode_dev(tty_devnum(current->signal->tty)) : 0; - read_unlock(&tasklist_lock); - mutex_unlock(&tty_mutex); - spin_lock_irq(¤t->sighand->siglock); + tty = current->signal->tty; + ac.ac_tty = tty ? old_encode_dev(tty_devnum(tty)) : 0; ac.ac_utime = encode_comp_t(jiffies_to_AHZ(cputime_to_jiffies(pacct->ac_utime))); ac.ac_stime = encode_comp_t(jiffies_to_AHZ(cputime_to_jiffies(pacct->ac_stime))); ac.ac_flag = pacct->ac_flag; |