Commit 20272c89 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc 

* 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc:
  proc: remove kernel.maps_protect
  proc: remove now unneeded ADDBUF macro
  [PATCH] proc: show personality via /proc/pid/personality
  [PATCH] signal, procfs: some lock_task_sighand() users do not need rcu_read_lock()
  proc: move PROC_PAGE_MONITOR to fs/proc/Kconfig
  proc: make grab_header() static
  proc: remove unused get_dma_list()
  proc: remove dummy vmcore_open()
  proc: proc_sys_root tweak
  proc: fix return value of proc_reg_open() in "too late" case

Fixed up trivial conflict in removed file arch/sparc/include/asm/dma_32.h
parents 8d71ff0b 3bbfe059

Documentation/filesystems/proc.txt

+0 −7
Original line number Diff line number Diff line
@@ -1331,13 +1331,6 @@ determine whether or not they are still functioning properly. 
Because the NMI watchdog shares registers with oprofile, by disabling the NMI

watchdog, oprofile may have more registers to utilize.



maps_protect

------------



Enables/Disables the protection of the per-process proc entries "maps" and

"smaps".  When enabled, the contents of these files are visible only to

readers that are allowed to ptrace() the given process.



msgmni

------

arch/arm/kernel/dma.c

+0 −17
Original line number Diff line number Diff line
@@ -25,23 +25,6 @@ EXPORT_SYMBOL(dma_spin_lock); 


static dma_t dma_chan[MAX_DMA_CHANNELS];



/*

 * Get dma list for /proc/dma

 */

int get_dma_list(char *buf)

{

	dma_t *dma;

	char *p = buf;

	int i;



	for (i = 0, dma = dma_chan; i < MAX_DMA_CHANNELS; i++, dma++)

		if (dma->lock)

			p += sprintf(p, "%2d: %14s %s\n", i,

				     dma->d_ops->type, dma->device_id);



	return p - buf;

}



/*

 * Request DMA channel

 *

fs/proc/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -57,3 +57,13 @@ config PROC_SYSCTL 
	  As it is generally a good thing, you should say Y here unless

	  building a kernel for install/rescue disks or your system is very

	  limited in memory.



config PROC_PAGE_MONITOR

 	default y

	depends on PROC_FS && MMU

	bool "Enable /proc page monitoring" if EMBEDDED

 	help

	  Various /proc files exist to monitor process memory utilization:

	  /proc/pid/smaps, /proc/pid/clear_refs, /proc/pid/pagemap,

	  /proc/kpagecount, and /proc/kpageflags. Disabling these

          interfaces will reduce the size of the kernel by approximately 4kb.

fs/proc/array.c

+0 −7
Original line number Diff line number Diff line
@@ -86,11 +86,6 @@ 
#include <asm/processor.h>

#include "internal.h"



/* Gcc optimizes away "strlen(x)" for constant x */

#define ADDBUF(buffer, string) \

do { memcpy(buffer, string, strlen(string)); \

     buffer += strlen(string); } while (0)



static inline void task_name(struct seq_file *m, struct task_struct *p)

{

	int i;
@@ -261,7 +256,6 @@ static inline void task_sig(struct seq_file *m, struct task_struct *p) 
	sigemptyset(&ignored);

	sigemptyset(&caught);



	rcu_read_lock();

	if (lock_task_sighand(p, &flags)) {

		pending = p->pending.signal;

		shpending = p->signal->shared_pending.signal;
@@ -272,7 +266,6 @@ static inline void task_sig(struct seq_file *m, struct task_struct *p) 
		qlim = p->signal->rlim[RLIMIT_SIGPENDING].rlim_cur;

		unlock_task_sighand(p, &flags);

	}

	rcu_read_unlock();



	seq_printf(m, "Threads:\t%d\n", num_threads);

	seq_printf(m, "SigQ:\t%lu/%lu\n", qsize, qlim);

fs/proc/base.c

+10 −11
Original line number Diff line number Diff line
@@ -148,9 +148,6 @@ static unsigned int pid_entry_count_dirs(const struct pid_entry *entries, 
	return count;

}



int maps_protect;

EXPORT_SYMBOL(maps_protect);



static struct fs_struct *get_fs_struct(struct task_struct *task)

{

	struct fs_struct *fs;
@@ -164,7 +161,6 @@ static struct fs_struct *get_fs_struct(struct task_struct *task) 


static int get_nr_threads(struct task_struct *tsk)

{

	/* Must be called with the rcu_read_lock held */

	unsigned long flags;

	int count = 0;
@@ -471,14 +467,10 @@ static int proc_pid_limits(struct task_struct *task, char *buffer) 


	struct rlimit rlim[RLIM_NLIMITS];



	rcu_read_lock();

	if (!lock_task_sighand(task,&flags)) {

		rcu_read_unlock();

	if (!lock_task_sighand(task, &flags))

		return 0;

	}

	memcpy(rlim, task->signal->rlim, sizeof(struct rlimit) * RLIM_NLIMITS);

	unlock_task_sighand(task, &flags);

	rcu_read_unlock();



	/*

	 * print the file header
@@ -2443,6 +2435,13 @@ static int proc_tgid_io_accounting(struct task_struct *task, char *buffer) 
}

#endif /* CONFIG_TASK_IO_ACCOUNTING */



static int proc_pid_personality(struct seq_file *m, struct pid_namespace *ns,

				struct pid *pid, struct task_struct *task)

{

	seq_printf(m, "%08x\n", task->personality);

	return 0;

}



/*

 * Thread groups

 */
@@ -2459,6 +2458,7 @@ static const struct pid_entry tgid_base_stuff[] = { 
	REG("environ",    S_IRUSR, environ),

	INF("auxv",       S_IRUSR, pid_auxv),

	ONE("status",     S_IRUGO, pid_status),

	ONE("personality", S_IRUSR, pid_personality),

	INF("limits",	  S_IRUSR, pid_limits),

#ifdef CONFIG_SCHED_DEBUG

	REG("sched",      S_IRUGO|S_IWUSR, pid_sched),
@@ -2794,6 +2794,7 @@ static const struct pid_entry tid_base_stuff[] = { 
	REG("environ",   S_IRUSR, environ),

	INF("auxv",      S_IRUSR, pid_auxv),

	ONE("status",    S_IRUGO, pid_status),

	ONE("personality", S_IRUSR, pid_personality),

	INF("limits",	 S_IRUSR, pid_limits),

#ifdef CONFIG_SCHED_DEBUG

	REG("sched",     S_IRUGO|S_IWUSR, pid_sched),
@@ -3088,9 +3089,7 @@ static int proc_task_getattr(struct vfsmount *mnt, struct dentry *dentry, struct 
	generic_fillattr(inode, stat);



	if (p) {

		rcu_read_lock();

		stat->nlink += get_nr_threads(p);

		rcu_read_unlock();

		put_task_struct(p);

	}

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