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proc: move /proc/slabinfo boilerplate to mm/slub.c, mm/slab.c

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Lose dummy ->write hook in case of SLUB, it's possible now.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
This commit is contained in:
Alexey Dobriyan 2008-10-06 02:42:17 +04:00
parent a0ec95a8e6
commit 7b3c3a50a3
4 changed files with 35 additions and 32 deletions
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17
fs/proc/proc_misc.c
View File

@ -132,20 +132,6 @@ static const struct file_operations proc_modules_operations = {
};
#endif
#ifdef CONFIG_SLABINFO
static int slabinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &slabinfo_op);
}
static const struct file_operations proc_slabinfo_operations = {
.open = slabinfo_open,
.read = seq_read,
.write = slabinfo_write,
.llseek = seq_lseek,
.release = seq_release,
};
#endif
#ifdef CONFIG_MMU
static int vmalloc_open(struct inode *inode, struct file *file)
{
@ -309,9 +295,6 @@ void __init proc_misc_init(void)
proc_symlink("mounts", NULL, "self/mounts");
/* And now for trickier ones */
#ifdef CONFIG_SLABINFO
proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
#endif
#ifdef CONFIG_MMU
proc_create("vmallocinfo", S_IRUSR, NULL, &proc_vmalloc_operations);
#endif

5
include/linux/slab.h
View File

@ -288,9 +288,4 @@ static inline void *kzalloc_node(size_t size, gfp_t flags, int node)
return kmalloc_node(size, flags | __GFP_ZERO, node);
}
#ifdef CONFIG_SLABINFO
extern const struct seq_operations slabinfo_op;
ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *);
#endif
#endif /* _LINUX_SLAB_H */

16
mm/slab.c
View File

@ -4259,7 +4259,7 @@ static int s_show(struct seq_file *m, void *p)
* + further values on SMP and with statistics enabled
*/
const struct seq_operations slabinfo_op = {
static const struct seq_operations slabinfo_op = {
.start = s_start,
.next = s_next,
.stop = s_stop,
@ -4316,6 +4316,19 @@ ssize_t slabinfo_write(struct file *file, const char __user * buffer,
return res;
}
static int slabinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &slabinfo_op);
}
static const struct file_operations proc_slabinfo_operations = {
.open = slabinfo_open,
.read = seq_read,
.write = slabinfo_write,
.llseek = seq_lseek,
.release = seq_release,
};
#ifdef CONFIG_DEBUG_SLAB_LEAK
static void *leaks_start(struct seq_file *m, loff_t *pos)
@ -4478,6 +4491,7 @@ static const struct file_operations proc_slabstats_operations = {
static int __init slab_proc_init(void)
{
proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
#ifdef CONFIG_DEBUG_SLAB_LEAK
proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
#endif

29
mm/slub.c
View File

@ -14,6 +14,7 @@
#include <linux/interrupt.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/cpu.h>
#include <linux/cpuset.h>
@ -4417,14 +4418,6 @@ __initcall(slab_sysfs_init);
* The /proc/slabinfo ABI
*/
#ifdef CONFIG_SLABINFO
ssize_t slabinfo_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
return -EINVAL;
}
static void print_slabinfo_header(struct seq_file *m)
{
seq_puts(m, "slabinfo - version: 2.1\n");
@ -4492,11 +4485,29 @@ static int s_show(struct seq_file *m, void *p)
return 0;
}
const struct seq_operations slabinfo_op = {
static const struct seq_operations slabinfo_op = {
.start = s_start,
.next = s_next,
.stop = s_stop,
.show = s_show,
};
static int slabinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &slabinfo_op);
}
static const struct file_operations proc_slabinfo_operations = {
.open = slabinfo_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static int __init slab_proc_init(void)
{
proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
return 0;
}
module_init(slab_proc_init);
#endif /* CONFIG_SLABINFO */