From: William Lee Irwin III <wli@holomorphy.com>
To: linux-kernel@vger.kernel.org
Cc: anton@samba.org, ak@muc.de
Subject: format_cpumask()
Date: Sun, 16 Nov 2003 19:35:04 -0800 [thread overview]
Message-ID: <20031117033504.GC19856@holomorphy.com> (raw)
I botched printing out cpumasks, and about a dozen times over.
This implements a generic format_cpumask() function and calls
it in various places. This time, without scrambling the bits.
-- wli
===== include/linux/cpumask.h 1.1 vs edited =====
--- 1.1/include/linux/cpumask.h Mon Aug 18 19:46:23 2003
+++ edited/include/linux/cpumask.h Sun Nov 16 19:28:33 2003
@@ -68,4 +68,23 @@
cpu < NR_CPUS; \
cpu = next_online_cpu(cpu,map))
+static inline int format_cpumask(char *buf, cpumask_t cpus)
+{
+ int k, len = 0;
+
+ for (k = sizeof(cpumask_t)/sizeof(long) - 1; k >= 0; ++k) {
+ int m;
+ cpumask_t tmp;
+
+ cpus_shift_right(tmp, cpus, BITS_PER_LONG*k);
+ if (BITS_PER_LONG == 32)
+ m = sprintf(buf, "%08lx", cpus_coerce(tmp));
+ else /* BITS_PER_LONG == 64 */
+ m = sprintf(buf, "%16lx", cpus_coerce(tmp));
+ len += m;
+ buf += m;
+ }
+ return len;
+}
+
#endif /* __LINUX_CPUMASK_H */
===== arch/i386/kernel/irq.c 1.45 vs edited =====
--- 1.45/arch/i386/kernel/irq.c Wed Oct 22 20:26:34 2003
+++ edited/arch/i386/kernel/irq.c Sun Nov 16 19:19:13 2003
@@ -949,19 +949,13 @@
static int irq_affinity_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- int k, len;
- cpumask_t tmp = irq_affinity[(long)data];
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- len = 0;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", (u16)cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
+ len = format_cpumask(page, irq_affinity[(long)data];
+ page += len;
len += sprintf(page, "\n");
return len;
}
@@ -1000,10 +994,16 @@
static int prof_cpu_mask_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- unsigned long *mask = (unsigned long *) data;
+ int len;
+ cpumask_t *mask = (cpumask_t *)data;
+
if (count < HEX_DIGITS+1)
return -EINVAL;
- return sprintf (page, "%08lx\n", *mask);
+
+ len = format_cpumask(page, *mask);
+ page += len;
+ len += sprintf (page, "\n");
+ return len;
}
static int prof_cpu_mask_write_proc (struct file *file, const char __user *buffer,
===== arch/ia64/kernel/irq.c 1.31 vs edited =====
--- 1.31/arch/ia64/kernel/irq.c Tue Nov 4 11:31:16 2003
+++ edited/arch/ia64/kernel/irq.c Sun Nov 16 19:07:19 2003
@@ -974,19 +974,13 @@
static int irq_affinity_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- int k, len;
- cpumask_t tmp = irq_affinity[(long)data];
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- len = 0;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", (u16)cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
+ len = format_cpumask(page, irq_affinity[(long)data]);
+ page += len;
len += sprintf(page, "\n");
return len;
}
@@ -1034,17 +1028,13 @@
int count, int *eof, void *data)
{
cpumask_t *mask = (cpumask_t *)data;
- int k, len = 0;
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", (u16)cpus_coerce(*mask));
- len += j;
- page += j;
- cpus_shift_right(*mask, *mask, 16);
- }
+ len = format_cpumask(page, *mask);
+ page += len;
len += sprintf(page, "\n");
return len;
}
===== arch/mips/kernel/irq.c 1.14 vs edited =====
--- 1.14/arch/mips/kernel/irq.c Tue Oct 7 19:53:39 2003
+++ edited/arch/mips/kernel/irq.c Sun Nov 16 19:07:59 2003
@@ -872,17 +872,13 @@
static int irq_affinity_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- int len, k;
- cpumask_t tmp = irq_affinity[(long)data];
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
+
+ len = format_cpumask(page, irq_affinity[(long)data]);
+ page += len;
len += sprintf(page, "\n");
return len;
}
@@ -918,19 +914,14 @@
static int prof_cpu_mask_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- int len, k;
- cpumask_t *mask = (cpumask_t *)data, tmp;
+ int len;
+ cpumask_t *mask = (cpumask_t *)data;
if (count < HEX_DIGITS+1)
return -EINVAL;
- tmp = *mask;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
+ len = format_cpumask(page, *mask);
+ page += len;
len += sprintf(page, "\n");
return len;
}
===== arch/ppc/kernel/irq.c 1.33 vs edited =====
--- 1.33/arch/ppc/kernel/irq.c Tue Oct 7 19:53:39 2003
+++ edited/arch/ppc/kernel/irq.c Sun Nov 16 19:08:36 2003
@@ -574,19 +574,13 @@
static int irq_affinity_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- cpumask_t tmp = irq_affinity[(long)data];
- int k, len = 0;
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", (u16)cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
-
+ len = format_cpumask(page, irq_affinity[(long)data]);
+ page += len;
len += sprintf(page, "\n");
return len;
}
@@ -665,17 +659,13 @@
int count, int *eof, void *data)
{
cpumask_t mask = *(cpumask_t *)data;
- int k, len = 0;
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", (u16)cpus_coerce(mask));
- len += j;
- page += j;
- cpus_shift_right(mask, mask, 16);
- }
+ len = format_cpumask(page, mask);
+ page += len;
len += sprintf(page, "\n");
return len;
}
===== arch/ppc64/kernel/irq.c 1.36 vs edited =====
--- 1.36/arch/ppc64/kernel/irq.c Wed Oct 15 18:43:36 2003
+++ edited/arch/ppc64/kernel/irq.c Sun Nov 16 19:11:59 2003
@@ -657,18 +657,13 @@
static int irq_affinity_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- int k, len;
- cpumask_t tmp = irq_affinity[(long)data];
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- for (k = 0; k < sizeof(cpumask_t) / sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", (u16)cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
+ len = format_cpumask(page, irq_affinity[(long)data]);
+ page += len;
len += sprintf(page, "\n");
return len;
}
@@ -744,10 +739,16 @@
static int prof_cpu_mask_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- unsigned long *mask = (unsigned long *) data;
+ int len;
+ cpumask_t *mask = (cpumask_t *) data;
+
if (count < HEX_DIGITS+1)
return -EINVAL;
- return sprintf (page, "%08lx\n", *mask);
+
+ len = format_cpumask(page, *mask);
+ page += len;
+ len += sprintf (page, "\n");
+ return len;
}
static int prof_cpu_mask_write_proc (struct file *file, const char __user *buffer,
===== arch/um/kernel/irq.c 1.11 vs edited =====
--- 1.11/arch/um/kernel/irq.c Tue Oct 7 19:53:41 2003
+++ edited/arch/um/kernel/irq.c Sun Nov 16 19:09:06 2003
@@ -577,9 +577,15 @@
static int irq_affinity_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
+ int len;
+
if (count < HEX_DIGITS+1)
return -EINVAL;
- return sprintf (page, "%08lx\n", irq_affinity[(long)data]);
+
+ len = format_cpumask(page, irq_affinity[(long)data]);
+ page += len;
+ len += sprinf(page, "\n");
+ return len;
}
static unsigned int parse_hex_value (const char *buffer,
@@ -652,18 +658,14 @@
static int prof_cpu_mask_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- cpumask_t tmp, *mask = (cpumask_t *) data;
- int k, len = 0;
+ cpumask_t *mask = (cpumask_t *)data;
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- tmp = *mask;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
+
+ len = format_cpumask(page, *mask);
+ page += len;
len += sprintf(page, "\n");
return len;
}
===== arch/x86_64/kernel/irq.c 1.18 vs edited =====
--- 1.18/arch/x86_64/kernel/irq.c Tue Oct 7 19:53:42 2003
+++ edited/arch/x86_64/kernel/irq.c Sun Nov 16 19:12:18 2003
@@ -850,18 +850,13 @@
static int irq_affinity_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- int k, len;
- cpumask_t tmp = irq_affinity[(long)data];
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- for (k = len = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", (u16)cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
+ len = format_cpumask(page, irq_affinity[(long)data]);
+ page += len;
len += sprintf(page, "\n");
return len;
}
@@ -897,19 +892,14 @@
static int prof_cpu_mask_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- cpumask_t tmp, *mask = (cpumask_t *) data;
- int k, len;
+ cpumask_t *mask = (cpumask_t *)data;
+ int len;
if (count < HEX_DIGITS+1)
return -EINVAL;
- tmp = *mask;
- for (k = len = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(page, "%04hx", (u16)cpus_coerce(tmp));
- len += j;
- page += j;
- cpus_shift_right(tmp, tmp, 16);
- }
+ len = format_cpumask(page, *mask);
+ page += len;
len += sprintf(page, "\n");
return len;
}
===== drivers/base/node.c 1.15 vs edited =====
--- 1.15/drivers/base/node.c Mon Aug 18 19:46:23 2003
+++ edited/drivers/base/node.c Sun Nov 16 19:20:29 2003
@@ -19,15 +19,11 @@
{
struct node *node_dev = to_node(dev);
cpumask_t tmp = node_dev->cpumap;
- int k, len = 0;
+ int len = 0;
- for (k = 0; k < sizeof(cpumask_t)/sizeof(u16); ++k) {
- int j = sprintf(buf, "%04hx", (u16)cpus_coerce(tmp));
- len += j;
- buf += j;
- cpus_shift_right(tmp, tmp, 16);
- }
- len += sprintf(buf, "\n");
+ len = format_cpumask(buf, node_dev->cpumap);
+ buf += len;
+ len += sprintf(buf, "\n");
return len;
}
static SYSDEV_ATTR(cpumap,S_IRUGO,node_read_cpumap,NULL);
next reply other threads:[~2003-11-17 3:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-17 3:35 William Lee Irwin III [this message]
2003-11-19 9:32 ` format_cpumask() Paul Jackson
2003-11-19 10:38 ` format_cpumask() William Lee Irwin III
-- strict thread matches above, loose matches on Subject: below --
2003-11-17 18:49 format_cpumask() Luck, Tony
2003-11-17 23:35 ` format_cpumask() William Lee Irwin III
2003-11-17 23:56 format_cpumask() Luck, Tony
2003-11-18 0:00 ` format_cpumask() William Lee Irwin III
2003-11-18 0:03 ` format_cpumask() William Lee Irwin III
[not found] ` <20031118002213.GA6272@tsunami.ccur.com>
2003-11-18 0:26 ` format_cpumask() William Lee Irwin III
2003-11-18 0:34 ` format_cpumask() Keith Owens
2003-11-18 0:56 ` format_cpumask() William Lee Irwin III
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20031117033504.GC19856@holomorphy.com \
--to=wli@holomorphy.com \
--cc=ak@muc.de \
--cc=anton@samba.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.