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[PATCH] ipc: convert /proc/sysvipc/* to generic seq_file interface

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Change the /proc/sysvipc/shm|sem|msg files to use the generic seq_file
implementation for struct ipc_ids.

Signed-off-by: Mike Waychison <mikew@google.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mike Waychison
2005-09-06 15:17:10 -07:00
committed by Linus Torvalds
parent ae7817745e
commit 19b4946ca9
5 changed files with 78 additions and 161 deletions
Download Patch File Download Diff File Expand all files Collapse all files
ipc/msg.c
+26 -54
View File
@@ -26,6 +26,7 @@
#include <linux/sched.h>
#include <linux/syscalls.h>
#include <linux/audit.h>
#include <linux/seq_file.h>
#include <asm/current.h>
#include <asm/uaccess.h>
#include "util.h"
@@ -74,16 +75,16 @@ static struct ipc_ids msg_ids;
static void freeque (struct msg_queue *msq, int id);
static int newque (key_t key, int msgflg);
#ifdef CONFIG_PROC_FS
static int sysvipc_msg_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data);
static int sysvipc_msg_proc_show(struct seq_file *s, void *it);
#endif
void __init msg_init (void)
{
ipc_init_ids(&msg_ids,msg_ctlmni);
#ifdef CONFIG_PROC_FS
create_proc_read_entry("sysvipc/msg", 0, NULL, sysvipc_msg_read_proc, NULL);
#endif
ipc_init_proc_interface("sysvipc/msg",
" key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n",
&msg_ids,
sysvipc_msg_proc_show);
}
static int newque (key_t key, int msgflg)
@@ -113,6 +114,7 @@ static int newque (key_t key, int msgflg)
return -ENOSPC;
}
msq->q_id = msg_buildid(id,msq->q_perm.seq);
msq->q_stime = msq->q_rtime = 0;
msq->q_ctime = get_seconds();
msq->q_cbytes = msq->q_qnum = 0;
@@ -123,7 +125,7 @@ static int newque (key_t key, int msgflg)
INIT_LIST_HEAD(&msq->q_senders);
msg_unlock(msq);
return msg_buildid(id,msq->q_perm.seq);
return msq->q_id;
}
static inline void ss_add(struct msg_queue* msq, struct msg_sender* mss)
@@ -808,55 +810,25 @@ out_unlock:
}
#ifdef CONFIG_PROC_FS
static int sysvipc_msg_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data)
static int sysvipc_msg_proc_show(struct seq_file *s, void *it)
{
off_t pos = 0;
off_t begin = 0;
int i, len = 0;
struct msg_queue *msq = it;
down(&msg_ids.sem);
len += sprintf(buffer, " key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n");
for(i = 0; i <= msg_ids.max_id; i++) {
struct msg_queue * msq;
msq = msg_lock(i);
if(msq != NULL) {
len += sprintf(buffer + len, "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n",
msq->q_perm.key,
msg_buildid(i,msq->q_perm.seq),
msq->q_perm.mode,
msq->q_cbytes,
msq->q_qnum,
msq->q_lspid,
msq->q_lrpid,
msq->q_perm.uid,
msq->q_perm.gid,
msq->q_perm.cuid,
msq->q_perm.cgid,
msq->q_stime,
msq->q_rtime,
msq->q_ctime);
msg_unlock(msq);
pos += len;
if(pos < offset) {
len = 0;
begin = pos;
}
if(pos > offset + length)
goto done;
}
}
*eof = 1;
done:
up(&msg_ids.sem);
*start = buffer + (offset - begin);
len -= (offset - begin);
if(len > length)
len = length;
if(len < 0)
len = 0;
return len;
return seq_printf(s,
"%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n",
msq->q_perm.key,
msq->q_id,
msq->q_perm.mode,
msq->q_cbytes,
msq->q_qnum,
msq->q_lspid,
msq->q_lrpid,
msq->q_perm.uid,
msq->q_perm.gid,
msq->q_perm.cuid,
msq->q_perm.cgid,
msq->q_stime,
msq->q_rtime,
msq->q_ctime);
}
#endif