diff options
Diffstat (limited to 'fs/proc/base.c')
-rw-r--r-- | fs/proc/base.c | 114 |
1 files changed, 63 insertions, 51 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 3f3d7ae..093ca14 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -169,7 +169,7 @@ static int get_task_root(struct task_struct *task, struct path *root) static int proc_cwd_link(struct dentry *dentry, struct path *path) { - struct task_struct *task = get_proc_task(dentry->d_inode); + struct task_struct *task = get_proc_task(d_inode(dentry)); int result = -ENOENT; if (task) { @@ -186,7 +186,7 @@ static int proc_cwd_link(struct dentry *dentry, struct path *path) static int proc_root_link(struct dentry *dentry, struct path *path) { - struct task_struct *task = get_proc_task(dentry->d_inode); + struct task_struct *task = get_proc_task(d_inode(dentry)); int result = -ENOENT; if (task) { @@ -238,13 +238,15 @@ static int proc_pid_wchan(struct seq_file *m, struct pid_namespace *ns, wchan = get_wchan(task); - if (lookup_symbol_name(wchan, symname) < 0) + if (lookup_symbol_name(wchan, symname) < 0) { if (!ptrace_may_access(task, PTRACE_MODE_READ)) return 0; - else - return seq_printf(m, "%lu", wchan); - else - return seq_printf(m, "%s", symname); + seq_printf(m, "%lu", wchan); + } else { + seq_printf(m, "%s", symname); + } + + return 0; } #endif /* CONFIG_KALLSYMS */ @@ -309,10 +311,12 @@ static int proc_pid_stack(struct seq_file *m, struct pid_namespace *ns, static int proc_pid_schedstat(struct seq_file *m, struct pid_namespace *ns, struct pid *pid, struct task_struct *task) { - return seq_printf(m, "%llu %llu %lu\n", - (unsigned long long)task->se.sum_exec_runtime, - (unsigned long long)task->sched_info.run_delay, - task->sched_info.pcount); + seq_printf(m, "%llu %llu %lu\n", + (unsigned long long)task->se.sum_exec_runtime, + (unsigned long long)task->sched_info.run_delay, + task->sched_info.pcount); + + return 0; } #endif @@ -387,7 +391,9 @@ static int proc_oom_score(struct seq_file *m, struct pid_namespace *ns, points = oom_badness(task, NULL, NULL, totalpages) * 1000 / totalpages; read_unlock(&tasklist_lock); - return seq_printf(m, "%lu\n", points); + seq_printf(m, "%lu\n", points); + + return 0; } struct limit_names { @@ -432,15 +438,15 @@ static int proc_pid_limits(struct seq_file *m, struct pid_namespace *ns, * print the file header */ seq_printf(m, "%-25s %-20s %-20s %-10s\n", - "Limit", "Soft Limit", "Hard Limit", "Units"); + "Limit", "Soft Limit", "Hard Limit", "Units"); for (i = 0; i < RLIM_NLIMITS; i++) { if (rlim[i].rlim_cur == RLIM_INFINITY) seq_printf(m, "%-25s %-20s ", - lnames[i].name, "unlimited"); + lnames[i].name, "unlimited"); else seq_printf(m, "%-25s %-20lu ", - lnames[i].name, rlim[i].rlim_cur); + lnames[i].name, rlim[i].rlim_cur); if (rlim[i].rlim_max == RLIM_INFINITY) seq_printf(m, "%-20s ", "unlimited"); @@ -462,7 +468,9 @@ static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns, { long nr; unsigned long args[6], sp, pc; - int res = lock_trace(task); + int res; + + res = lock_trace(task); if (res) return res; @@ -477,7 +485,8 @@ static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns, args[0], args[1], args[2], args[3], args[4], args[5], sp, pc); unlock_trace(task); - return res; + + return 0; } #endif /* CONFIG_HAVE_ARCH_TRACEHOOK */ @@ -505,7 +514,7 @@ static int proc_fd_access_allowed(struct inode *inode) int proc_setattr(struct dentry *dentry, struct iattr *attr) { int error; - struct inode *inode = dentry->d_inode; + struct inode *inode = d_inode(dentry); if (attr->ia_valid & ATTR_MODE) return -EPERM; @@ -1353,7 +1362,7 @@ static int proc_exe_link(struct dentry *dentry, struct path *exe_path) struct mm_struct *mm; struct file *exe_file; - task = get_proc_task(dentry->d_inode); + task = get_proc_task(d_inode(dentry)); if (!task) return -ENOENT; mm = get_task_mm(task); @@ -1373,7 +1382,7 @@ static int proc_exe_link(struct dentry *dentry, struct path *exe_path) static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) { - struct inode *inode = dentry->d_inode; + struct inode *inode = d_inode(dentry); struct path path; int error = -EACCES; @@ -1418,7 +1427,7 @@ static int do_proc_readlink(struct path *path, char __user *buffer, int buflen) static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int buflen) { int error = -EACCES; - struct inode *inode = dentry->d_inode; + struct inode *inode = d_inode(dentry); struct path path; /* Are we allowed to snoop on the tasks file descriptors? */ @@ -1488,7 +1497,7 @@ out_unlock: int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) { - struct inode *inode = dentry->d_inode; + struct inode *inode = d_inode(dentry); struct task_struct *task; const struct cred *cred; struct pid_namespace *pid = dentry->d_sb->s_fs_info; @@ -1545,7 +1554,7 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags) if (flags & LOOKUP_RCU) return -ECHILD; - inode = dentry->d_inode; + inode = d_inode(dentry); task = get_proc_task(inode); if (task) { @@ -1579,7 +1588,7 @@ int pid_delete_dentry(const struct dentry *dentry) * If so, then don't put the dentry on the lru list, * kill it immediately. */ - return proc_inode_is_dead(dentry->d_inode); + return proc_inode_is_dead(d_inode(dentry)); } const struct dentry_operations pid_dentry_operations = @@ -1617,12 +1626,12 @@ bool proc_fill_cache(struct file *file, struct dir_context *ctx, child = d_alloc(dir, &qname); if (!child) goto end_instantiate; - if (instantiate(dir->d_inode, child, task, ptr) < 0) { + if (instantiate(d_inode(dir), child, task, ptr) < 0) { dput(child); goto end_instantiate; } } - inode = child->d_inode; + inode = d_inode(child); ino = inode->i_ino; type = inode->i_mode >> 12; dput(child); @@ -1665,7 +1674,7 @@ static int map_files_d_revalidate(struct dentry *dentry, unsigned int flags) goto out_notask; } - inode = dentry->d_inode; + inode = d_inode(dentry); task = get_proc_task(inode); if (!task) goto out_notask; @@ -1718,7 +1727,7 @@ static int proc_map_files_get_link(struct dentry *dentry, struct path *path) int rc; rc = -ENOENT; - task = get_proc_task(dentry->d_inode); + task = get_proc_task(d_inode(dentry)); if (!task) goto out; @@ -2002,12 +2011,13 @@ static int show_timer(struct seq_file *m, void *v) notify = timer->it_sigev_notify; seq_printf(m, "ID: %d\n", timer->it_id); - seq_printf(m, "signal: %d/%p\n", timer->sigq->info.si_signo, - timer->sigq->info.si_value.sival_ptr); + seq_printf(m, "signal: %d/%p\n", + timer->sigq->info.si_signo, + timer->sigq->info.si_value.sival_ptr); seq_printf(m, "notify: %s/%s.%d\n", - nstr[notify & ~SIGEV_THREAD_ID], - (notify & SIGEV_THREAD_ID) ? "tid" : "pid", - pid_nr_ns(timer->it_pid, tp->ns)); + nstr[notify & ~SIGEV_THREAD_ID], + (notify & SIGEV_THREAD_ID) ? "tid" : "pid", + pid_nr_ns(timer->it_pid, tp->ns)); seq_printf(m, "ClockID: %d\n", timer->it_clock); return 0; @@ -2352,21 +2362,23 @@ static int do_io_accounting(struct task_struct *task, struct seq_file *m, int wh unlock_task_sighand(task, &flags); } - result = seq_printf(m, - "rchar: %llu\n" - "wchar: %llu\n" - "syscr: %llu\n" - "syscw: %llu\n" - "read_bytes: %llu\n" - "write_bytes: %llu\n" - "cancelled_write_bytes: %llu\n", - (unsigned long long)acct.rchar, - (unsigned long long)acct.wchar, - (unsigned long long)acct.syscr, - (unsigned long long)acct.syscw, - (unsigned long long)acct.read_bytes, - (unsigned long long)acct.write_bytes, - (unsigned long long)acct.cancelled_write_bytes); + seq_printf(m, + "rchar: %llu\n" + "wchar: %llu\n" + "syscr: %llu\n" + "syscw: %llu\n" + "read_bytes: %llu\n" + "write_bytes: %llu\n" + "cancelled_write_bytes: %llu\n", + (unsigned long long)acct.rchar, + (unsigned long long)acct.wchar, + (unsigned long long)acct.syscr, + (unsigned long long)acct.syscw, + (unsigned long long)acct.read_bytes, + (unsigned long long)acct.write_bytes, + (unsigned long long)acct.cancelled_write_bytes); + result = 0; + out_unlock: mutex_unlock(&task->signal->cred_guard_mutex); return result; @@ -2851,13 +2863,13 @@ int proc_pid_readdir(struct file *file, struct dir_context *ctx) return 0; if (pos == TGID_OFFSET - 2) { - struct inode *inode = ns->proc_self->d_inode; + struct inode *inode = d_inode(ns->proc_self); if (!dir_emit(ctx, "self", 4, inode->i_ino, DT_LNK)) return 0; ctx->pos = pos = pos + 1; } if (pos == TGID_OFFSET - 1) { - struct inode *inode = ns->proc_thread_self->d_inode; + struct inode *inode = d_inode(ns->proc_thread_self); if (!dir_emit(ctx, "thread-self", 11, inode->i_ino, DT_LNK)) return 0; ctx->pos = pos = pos + 1; @@ -3176,7 +3188,7 @@ static int proc_task_readdir(struct file *file, struct dir_context *ctx) static int proc_task_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) { - struct inode *inode = dentry->d_inode; + struct inode *inode = d_inode(dentry); struct task_struct *p = get_proc_task(inode); generic_fillattr(inode, stat); |