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authorMike Waychison <mikew@google.com>2005-09-06 15:17:10 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-07 16:57:26 -0700
commit19b4946ca9d1e35d4c641dcebe27378de34f3ddd (patch)
treeadd66dd24e7a30441bbe26a4cc35e1124434e5b9 /ipc/sem.c
parentae7817745eef3b4ed3c2e36cb403e0c50f17d4e4 (diff)
downloadlinux-linaro-19b4946ca9d1e35d4c641dcebe27378de34f3ddd.tar.gz
[PATCH] ipc: convert /proc/sysvipc/* to generic seq_file interface
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>
Diffstat (limited to 'ipc/sem.c')
-rw-r--r--ipc/sem.c73
1 files changed, 23 insertions, 50 deletions
diff --git a/ipc/sem.c b/ipc/sem.c
index 70975ce0784..19af028a3e3 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -73,6 +73,7 @@
#include <linux/security.h>
#include <linux/syscalls.h>
#include <linux/audit.h>
+#include <linux/seq_file.h>
#include <asm/uaccess.h>
#include "util.h"
@@ -89,7 +90,7 @@ static struct ipc_ids sem_ids;
static int newary (key_t, int, int);
static void freeary (struct sem_array *sma, int id);
#ifdef CONFIG_PROC_FS
-static int sysvipc_sem_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data);
+static int sysvipc_sem_proc_show(struct seq_file *s, void *it);
#endif
#define SEMMSL_FAST 256 /* 512 bytes on stack */
@@ -116,10 +117,10 @@ void __init sem_init (void)
{
used_sems = 0;
ipc_init_ids(&sem_ids,sc_semmni);
-
-#ifdef CONFIG_PROC_FS
- create_proc_read_entry("sysvipc/sem", 0, NULL, sysvipc_sem_read_proc, NULL);
-#endif
+ ipc_init_proc_interface("sysvipc/sem",
+ " key semid perms nsems uid gid cuid cgid otime ctime\n",
+ &sem_ids,
+ sysvipc_sem_proc_show);
}
/*
@@ -193,6 +194,7 @@ static int newary (key_t key, int nsems, int semflg)
}
used_sems += nsems;
+ sma->sem_id = sem_buildid(id, sma->sem_perm.seq);
sma->sem_base = (struct sem *) &sma[1];
/* sma->sem_pending = NULL; */
sma->sem_pending_last = &sma->sem_pending;
@@ -201,7 +203,7 @@ static int newary (key_t key, int nsems, int semflg)
sma->sem_ctime = get_seconds();
sem_unlock(sma);
- return sem_buildid(id, sma->sem_perm.seq);
+ return sma->sem_id;
}
asmlinkage long sys_semget (key_t key, int nsems, int semflg)
@@ -1328,50 +1330,21 @@ next_entry:
}
#ifdef CONFIG_PROC_FS
-static int sysvipc_sem_read_proc(char *buffer, char **start, off_t offset, int length, int *eof, void *data)
+static int sysvipc_sem_proc_show(struct seq_file *s, void *it)
{
- off_t pos = 0;
- off_t begin = 0;
- int i, len = 0;
-
- len += sprintf(buffer, " key semid perms nsems uid gid cuid cgid otime ctime\n");
- down(&sem_ids.sem);
-
- for(i = 0; i <= sem_ids.max_id; i++) {
- struct sem_array *sma;
- sma = sem_lock(i);
- if(sma) {
- len += sprintf(buffer + len, "%10d %10d %4o %10lu %5u %5u %5u %5u %10lu %10lu\n",
- sma->sem_perm.key,
- sem_buildid(i,sma->sem_perm.seq),
- sma->sem_perm.mode,
- sma->sem_nsems,
- sma->sem_perm.uid,
- sma->sem_perm.gid,
- sma->sem_perm.cuid,
- sma->sem_perm.cgid,
- sma->sem_otime,
- sma->sem_ctime);
- sem_unlock(sma);
-
- pos += len;
- if(pos < offset) {
- len = 0;
- begin = pos;
- }
- if(pos > offset + length)
- goto done;
- }
- }
- *eof = 1;
-done:
- up(&sem_ids.sem);
- *start = buffer + (offset - begin);
- len -= (offset - begin);
- if(len > length)
- len = length;
- if(len < 0)
- len = 0;
- return len;
+ struct sem_array *sma = it;
+
+ return seq_printf(s,
+ "%10d %10d %4o %10lu %5u %5u %5u %5u %10lu %10lu\n",
+ sma->sem_perm.key,
+ sma->sem_id,
+ sma->sem_perm.mode,
+ sma->sem_nsems,
+ sma->sem_perm.uid,
+ sma->sem_perm.gid,
+ sma->sem_perm.cuid,
+ sma->sem_perm.cgid,
+ sma->sem_otime,
+ sma->sem_ctime);
}
#endif