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Blackfin: convert /proc/sram to seq_file

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->read_proc interface is going away, switch to seq_file.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Alexey Dobriyan 2011-05-14 19:51:54 +03:00 • committed by Mike Frysinger
parent 6362ec272c
commit 934fe05bf0
1 changed files with 26 additions and 17 deletions
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43
arch/blackfin/mm/sram-alloc.c
View file

@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
#include <linux/rtc.h>
#include <linux/slab.h>
@ -764,7 +765,7 @@ EXPORT_SYMBOL(sram_alloc_with_lsl);
/* Need to keep line of output the same. Currently, that is 44 bytes
* (including newline).
*/
static int _sram_proc_read(char *buf, int *len, int count, const char *desc,
static int _sram_proc_show(struct seq_file *m, const char *desc,
struct sram_piece *pfree_head,
struct sram_piece *pused_head)
{
@ -773,13 +774,13 @@ static int _sram_proc_read(char *buf, int *len, int count, const char *desc,
if (!pfree_head || !pused_head)
return -1;
*len += sprintf(&buf[*len], "--- SRAM %-14s Size PID State \n", desc);
seq_printf(m, "--- SRAM %-14s Size PID State \n", desc);
/* search the relevant memory slot */
pslot = pused_head->next;
while (pslot != NULL) {
*len += sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n",
seq_printf(m, "%p-%p %10i %5i %-10s\n",
pslot->paddr, pslot->paddr + pslot->size,
pslot->size, pslot->pid, "ALLOCATED");
@ -789,7 +790,7 @@ static int _sram_proc_read(char *buf, int *len, int count, const char *desc,
pslot = pfree_head->next;
while (pslot != NULL) {
*len += sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n",
seq_printf(m, "%p-%p %10i %5i %-10s\n",
pslot->paddr, pslot->paddr + pslot->size,
pslot->size, pslot->pid, "FREE");
@ -798,54 +799,62 @@ static int _sram_proc_read(char *buf, int *len, int count, const char *desc,
return 0;
}
static int sram_proc_read(char *buf, char **start, off_t offset, int count,
int *eof, void *data)
static int sram_proc_show(struct seq_file *m, void *v)
{
int len = 0;
unsigned int cpu;
for (cpu = 0; cpu < num_possible_cpus(); ++cpu) {
if (_sram_proc_read(buf, &len, count, "Scratchpad",
if (_sram_proc_show(m, "Scratchpad",
&per_cpu(free_l1_ssram_head, cpu), &per_cpu(used_l1_ssram_head, cpu)))
goto not_done;
#if L1_DATA_A_LENGTH != 0
if (_sram_proc_read(buf, &len, count, "L1 Data A",
if (_sram_proc_show(m, "L1 Data A",
&per_cpu(free_l1_data_A_sram_head, cpu),
&per_cpu(used_l1_data_A_sram_head, cpu)))
goto not_done;
#endif
#if L1_DATA_B_LENGTH != 0
if (_sram_proc_read(buf, &len, count, "L1 Data B",
if (_sram_proc_show(m, "L1 Data B",
&per_cpu(free_l1_data_B_sram_head, cpu),
&per_cpu(used_l1_data_B_sram_head, cpu)))
goto not_done;
#endif
#if L1_CODE_LENGTH != 0
if (_sram_proc_read(buf, &len, count, "L1 Instruction",
if (_sram_proc_show(m, "L1 Instruction",
&per_cpu(free_l1_inst_sram_head, cpu),
&per_cpu(used_l1_inst_sram_head, cpu)))
goto not_done;
#endif
}
#if L2_LENGTH != 0
if (_sram_proc_read(buf, &len, count, "L2", &free_l2_sram_head,
&used_l2_sram_head))
if (_sram_proc_show(m, "L2", &free_l2_sram_head, &used_l2_sram_head))
goto not_done;
#endif
*eof = 1;
not_done:
return len;
return 0;
}
static int sram_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, sram_proc_show, NULL);
}
static const struct file_operations sram_proc_ops = {
.open = sram_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int __init sram_proc_init(void)
{
struct proc_dir_entry *ptr;
ptr = create_proc_entry("sram", S_IFREG | S_IRUGO, NULL);
ptr = proc_create("sram", S_IRUGO, NULL, &sram_proc_ops);
if (!ptr) {
printk(KERN_WARNING "unable to create /proc/sram\n");
return -1;
}
ptr->read_proc = sram_proc_read;
return 0;
}
late_initcall(sram_proc_init);