2008-02-08 18:08:39

by Joe Perches

[permalink] [raw]
Subject: [PATCH] mm/slub.c - Use print_hex_dump

Use the library function to dump memory

old:
$ size mm/slub.o
text data bss dec hex filename
16165 5782 80 22027 560b mm/slub.o


new:
$ size mm/slub.o
text data bss dec hex filename
15990 5782 80 21852 555c mm/slub.o

Signed-off-by: Joe Perches <[email protected]>

diff --git a/mm/slub.c b/mm/slub.c
index e2989ae..5f1a5e5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -378,36 +378,10 @@ static char *slub_debug_slabs;
/*
* Object debugging
*/
-static void print_section(char *text, u8 *addr, unsigned int length)
+static void print_section(const char *text, const u8 *addr, size_t length)
{
- int i, offset;
- int newline = 1;
- char ascii[17];
-
- ascii[16] = 0;
-
- for (i = 0; i < length; i++) {
- if (newline) {
- printk(KERN_ERR "%8s 0x%p: ", text, addr + i);
- newline = 0;
- }
- printk(KERN_CONT " %02x", addr[i]);
- offset = i % 16;
- ascii[offset] = isgraph(addr[i]) ? addr[i] : '.';
- if (offset == 15) {
- printk(KERN_CONT " %s\n", ascii);
- newline = 1;
- }
- }
- if (!newline) {
- i %= 16;
- while (i < 16) {
- printk(KERN_CONT " ");
- ascii[i] = ' ';
- i++;
- }
- printk(KERN_CONT " %s\n", ascii);
- }
+ print_hex_dump(KERN_ERR, text, DUMP_PREFIX_ADDRESS, 16, 1,
+ addr, length, true);
}

static struct track *get_track(struct kmem_cache *s, void *object,
@@ -517,12 +491,12 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
p, p - addr, get_freepointer(s, p));

if (p > addr + 16)
- print_section("Bytes b4", p - 16, 16);
+ print_section("Bytes b4: ", p - 16, 16);

- print_section("Object", p, min(s->objsize, 128));
+ print_section("Object: ", p, min(s->objsize, 128));

if (s->flags & SLAB_RED_ZONE)
- print_section("Redzone", p + s->objsize,
+ print_section("Redzone: ", p + s->objsize,
s->inuse - s->objsize);

if (s->offset)
@@ -535,7 +509,7 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)

if (off != s->size)
/* Beginning of the filler is the free pointer */
- print_section("Padding", p + off, s->size - off);
+ print_section("Padding: ", p + off, s->size - off);

dump_stack();
}
@@ -699,7 +673,7 @@ static int slab_pad_check(struct kmem_cache *s, struct page *page)
end--;

slab_err(s, page, "Padding overwritten. 0x%p-0x%p", fault, end - 1);
- print_section("Padding", start, length);
+ print_section("Padding: ", start, length);

restore_bytes(s, "slab padding", POISON_INUSE, start, end);
return 0;
@@ -829,7 +803,7 @@ static void trace(struct kmem_cache *s, struct page *page, void *object, int all
page->freelist);

if (!alloc)
- print_section("Object", (void *)object, s->objsize);
+ print_section("Object: ", (void *)object, s->objsize);

dump_stack();
}


2008-02-08 18:10:22

by Christoph Lameter

[permalink] [raw]
Subject: Re: [PATCH] mm/slub.c - Use print_hex_dump

On Fri, 8 Feb 2008, Joe Perches wrote:

> Use the library function to dump memory

Could you please compare the formatting of the output before and
after? Last time we tried this we had issues because it became a bit ugly.

2008-02-08 18:25:42

by Joe Perches

[permalink] [raw]
Subject: Re: [PATCH] mm/slub.c - Use print_hex_dump

On Fri, 2008-02-08 at 10:07 -0800, Christoph Lameter wrote:
> On Fri, 8 Feb 2008, Joe Perches wrote:
> > Use the library function to dump memory
> Could you please compare the formatting of the output before and
> after? Last time we tried this we had issues because it became a bit ugly.

The difference is the last line of the ascii is not aligned
if the length is non modulo 16.

I have sent a patch to print_hex_dump to always align.
http://lkml.org/lkml/2007/12/6/304

2008-02-08 18:32:51

by Christoph Lameter

[permalink] [raw]
Subject: Re: [PATCH] mm/slub.c - Use print_hex_dump

On Fri, 8 Feb 2008, Joe Perches wrote:

> On Fri, 2008-02-08 at 10:07 -0800, Christoph Lameter wrote:
> > On Fri, 8 Feb 2008, Joe Perches wrote:
> > > Use the library function to dump memory
> > Could you please compare the formatting of the output before and
> > after? Last time we tried this we had issues because it became a bit ugly.
>
> The difference is the last line of the ascii is not aligned
> if the length is non modulo 16.
>
> I have sent a patch to print_hex_dump to always align.
> http://lkml.org/lkml/2007/12/6/304

Could you group these together for review? I think we are okay with the
slub changes if the print_hex_dump is fixed.

2008-02-08 20:17:33

by Joe Perches

[permalink] [raw]
Subject: Re: [PATCH] mm/slub.c - Use print_hex_dump

On Fri, 2008-02-08 at 10:32 -0800, Christoph Lameter wrote:
> On Fri, 8 Feb 2008, Joe Perches wrote:
> > On Fri, 2008-02-08 at 10:07 -0800, Christoph Lameter wrote:
> > > On Fri, 8 Feb 2008, Joe Perches wrote:
> > > > Use the library function to dump memory
> > > Could you please compare the formatting of the output before and
> > > after? Last time we tried this we had issues because it became a bit ugly.
> > The difference is the last line of the ascii is not aligned
> > if the length is non modulo 16.
> > I have sent a patch to print_hex_dump to always align.
> > http://lkml.org/lkml/2007/12/6/304
> Could you group these together for review? I think we are okay with the
> slub changes if the print_hex_dump is fixed.

hex_dump_to_buffer:
Removes casts to type for non-1 group sizes
Used by: fs/ext(3|4)super.c, fs/jfs
If someone really dislikes this change, please say so.
I think casting to type in a hex dump odd, especially
for mixed type structures.
If you want an array of type dumper, it probably
shouldn't be called hex_dump_to_buffer.
Groups by arbitrary size
print_hex_dump:
Removes rowsize argument
Reduces linebuf stack use to ~120 bytes
prefix:25 + address:20 + data:48 + ascii:20)
Aligns multiline ascii output
Changes return to size_t, number of bytes actually output

include/linux/kernel.h
Removes hex_asc define
Updates hex_dump prototypes
mm/slub.c
Use print_hex_dump

The rest are trivial conversions to new argument list.

size before:
text data bss dec hex filename
1142 0 0 1142 476 lib/hexdump.o

size after:
text data bss dec hex filename
823 0 0 823 337 lib/hexdump.o

Signed-off-by: Joe Perches <[email protected]>
---
include/linux/ide.h | 2 +-
include/linux/kernel.h | 13 +-
lib/hexdump.c | 164 ++++++++++++---------------
mm/slub.c | 44 ++------
drivers/mtd/ubi/debug.c | 4 +-
drivers/mtd/ubi/io.c | 4 +-
drivers/net/e1000/e1000_main.c | 2 +-
drivers/net/enc28j60.c | 4 +-
drivers/net/wireless/iwlwifi/iwl3945-base.c | 4 +-
drivers/net/wireless/iwlwifi/iwl4965-base.c | 4 +-
drivers/s390/cio/device_fsm.c | 17 ++--
drivers/scsi/ide-scsi.c | 2 +-
drivers/usb/gadget/file_storage.c | 8 +-
fs/ext3/super.c | 6 +-
fs/ext4/super.c | 6 +-
fs/jffs2/wbuf.c | 8 +-
fs/jfs/jfs_imap.c | 4 +-
fs/jfs/jfs_logmgr.c | 15 ++-
fs/jfs/jfs_metapage.c | 4 +-
fs/jfs/jfs_txnmgr.c | 17 ++--
fs/jfs/xattr.c | 4 +-
fs/xfs/support/debug.c | 2 +-
crypto/tcrypt.c | 3 +-
23 files changed, 150 insertions(+), 191 deletions(-)

diff --git a/include/linux/ide.h b/include/linux/ide.h
index acec99d..bf2e621 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1288,7 +1288,7 @@ extern struct bus_type ide_bus_type;

static inline void ide_dump_identify(u8 *id)
{
- print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0);
+ print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 2, id, 512, false);
}

static inline int hwif_to_node(ide_hwif_t *hwif)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 9e01f37..44ada01 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -252,15 +252,14 @@ enum {
DUMP_PREFIX_ADDRESS,
DUMP_PREFIX_OFFSET
};
-extern void hex_dump_to_buffer(const void *buf, size_t len,
- int rowsize, int groupsize,
- char *linebuf, size_t linebuflen, bool ascii);
+extern size_t hex_dump_to_buffer(const void *buf, size_t len,
+ size_t rowsize, size_t groupsize,
+ char *linebuf, size_t linebuflen, bool ascii);
extern void print_hex_dump(const char *level, const char *prefix_str,
- int prefix_type, int rowsize, int groupsize,
- const void *buf, size_t len, bool ascii);
+ int prefix_type, size_t groupsize,
+ const void *buf, size_t len, bool ascii);
extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
- const void *buf, size_t len);
-#define hex_asc(x) "0123456789abcdef"[x]
+ const void *buf, size_t len);

#define pr_emerg(fmt, arg...) \
printk(KERN_EMERG fmt, ##arg)
diff --git a/lib/hexdump.c b/lib/hexdump.c
index 3435465..dbe9335 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -12,18 +12,21 @@
#include <linux/kernel.h>
#include <linux/module.h>

+#define ROWSIZE ((size_t)16)
+#define MAX_PREFIX_LEN ((size_t)20)
+
/**
* hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
* @buf: data blob to dump
* @len: number of bytes in the @buf
- * @rowsize: number of bytes to print per line; must be 16 or 32
+ * @rowsize: maximum number of bytes to output (aligns ascii)
* @groupsize: number of bytes to print at a time (1, 2, 4, 8; default = 1)
* @linebuf: where to put the converted data
* @linebuflen: total size of @linebuf, including space for terminating NUL
* @ascii: include ASCII after the hex output
*
* hex_dump_to_buffer() works on one "line" of output at a time, i.e.,
- * 16 or 32 bytes of input data converted to hex + ASCII output.
+ * input data converted to hex + ASCII output.
*
* Given a buffer of u8 data, hex_dump_to_buffer() converts the input data
* to a hex + ASCII dump at the supplied memory location.
@@ -31,85 +34,54 @@
*
* E.g.:
* hex_dump_to_buffer(frame->data, frame->len, 16, 1,
- * linebuf, sizeof(linebuf), 1);
+ * linebuf, sizeof(linebuf), true);
*
* example output buffer:
* 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f @ABCDEFGHIJKLMNO
*/
-void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
- int groupsize, char *linebuf, size_t linebuflen,
- bool ascii)
+size_t hex_dump_to_buffer(const void *buf, size_t len,
+ size_t rowsize, size_t groupsize,
+ char *linebuf, size_t linebuflen, bool ascii)
{
const u8 *ptr = buf;
- u8 ch;
- int j, lx = 0;
- int ascii_column;
-
- if (rowsize != 16 && rowsize != 32)
- rowsize = 16;
-
+ int i, lx = 0;
+ size_t ascii_column;
+ size_t ngroups;
if (!len)
goto nil;
- if (len > rowsize) /* limit to one line at a time */
- len = rowsize;
- if ((len % groupsize) != 0) /* no mixed size output */
- groupsize = 1;
-
- switch (groupsize) {
- case 8: {
- const u64 *ptr8 = buf;
- int ngroups = len / groupsize;
-
- for (j = 0; j < ngroups; j++)
- lx += scnprintf(linebuf + lx, linebuflen - lx,
- "%16.16llx ", (unsigned long long)*(ptr8 + j));
- ascii_column = 17 * ngroups + 2;
- break;
- }
-
- case 4: {
- const u32 *ptr4 = buf;
- int ngroups = len / groupsize;
-
- for (j = 0; j < ngroups; j++)
- lx += scnprintf(linebuf + lx, linebuflen - lx,
- "%8.8x ", *(ptr4 + j));
- ascii_column = 9 * ngroups + 2;
- break;
- }

- case 2: {
- const u16 *ptr2 = buf;
- int ngroups = len / groupsize;
+ if (groupsize == 0)
+ groupsize = 1;
+ else if (groupsize > rowsize)
+ groupsize = rowsize;

- for (j = 0; j < ngroups; j++)
- lx += scnprintf(linebuf + lx, linebuflen - lx,
- "%4.4x ", *(ptr2 + j));
- ascii_column = 5 * ngroups + 2;
- break;
- }
+ ngroups = rowsize / groupsize;
+ ascii_column = (2 * groupsize + 1) * ngroups + 2;
+ if (len > (ngroups * groupsize))
+ len = ngroups * groupsize;

- default:
- for (j = 0; (j < rowsize) && (j < len) && (lx + 4) < linebuflen;
- j++) {
- ch = ptr[j];
- linebuf[lx++] = hex_asc(ch >> 4);
- linebuf[lx++] = hex_asc(ch & 0x0f);
+ for (i = 0; i < len; i++) {
+ if (i && (i % groupsize) == 0)
linebuf[lx++] = ' ';
- }
- ascii_column = 3 * rowsize + 2;
- break;
+ lx += scnprintf(linebuf + lx, linebuflen - lx,
+ "%02x", ptr[i] & 0xff);
}
+
if (!ascii)
goto nil;

while (lx < (linebuflen - 1) && lx < (ascii_column - 1))
linebuf[lx++] = ' ';
- for (j = 0; (j < rowsize) && (j < len) && (lx + 2) < linebuflen; j++)
- linebuf[lx++] = (isascii(ptr[j]) && isprint(ptr[j])) ? ptr[j]
- : '.';
+
+ for (i = 0; i < len && (lx + 2) < linebuflen; i++) {
+ if (i > 0 && groupsize > 1 && (i % groupsize) == 0)
+ linebuf[lx++] = ' ';
+ linebuf[lx++] = (isascii(ptr[i]) && isprint(ptr[i]))
+ ? ptr[i] : '.';
+ }
nil:
- linebuf[lx++] = '\0';
+ linebuf[lx] = '\0';
+ return len;
}
EXPORT_SYMBOL(hex_dump_to_buffer);

@@ -120,7 +92,6 @@ EXPORT_SYMBOL(hex_dump_to_buffer);
* caller supplies trailing spaces for alignment if desired
* @prefix_type: controls whether prefix of an offset, address, or none
* is printed (%DUMP_PREFIX_OFFSET, %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_NONE)
- * @rowsize: number of bytes to print per line; must be 16 or 32
* @groupsize: number of bytes to print at a time (1, 2, 4, 8; default = 1)
* @buf: data blob to dump
* @len: number of bytes in the @buf
@@ -131,48 +102,60 @@ EXPORT_SYMBOL(hex_dump_to_buffer);
* leading prefix.
*
* print_hex_dump() works on one "line" of output at a time, i.e.,
- * 16 or 32 bytes of input data converted to hex + ASCII output.
+ * 16 bytes of input data converted to hex + ASCII output.
* print_hex_dump() iterates over the entire input @buf, breaking it into
- * "line size" chunks to format and print.
+ * groups of up to 16 byte chunks to format and print.
*
* E.g.:
- * print_hex_dump(KERN_DEBUG, "raw data: ", DUMP_PREFIX_ADDRESS,
- * 16, 1, frame->data, frame->len, 1);
+ * print_hex_dump(KERN_DEBUG, "raw data: ", DUMP_PREFIX_ADDRESS, 1,
+ * frame->data, frame->len, 1);
*
* Example output using %DUMP_PREFIX_OFFSET and 1-byte mode:
- * 0009ab42: 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f @ABCDEFGHIJKLMNO
- * Example output using %DUMP_PREFIX_ADDRESS and 4-byte mode:
- * ffffffff88089af0: 73727170 77767574 7b7a7978 7f7e7d7c pqrstuvwxyz{|}~.
+ * 00000000: 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f @ABCDEFGHIJKLMNO
+ * Example output using %DUMP_PREFIX_ADDRESS and 4-byte mode on BE 64 bit:
+ * ffffffff88089af0: 70717273 74757677 78797a7b 7c7d7e7f pqrs tuvw xyz{ |}~.
+ * Example output using %DUMP_PREFIX_ADDRESS and 5-byte mode on LE 32 bit:
+ * 88089af0: 7071727374 7576777879 7a7b7d7d7e pqrst uvwxy z{|}~
*/
+
void print_hex_dump(const char *level, const char *prefix_str, int prefix_type,
- int rowsize, int groupsize,
- const void *buf, size_t len, bool ascii)
+ size_t groupsize, const void *buf, size_t len, bool ascii)
{
const u8 *ptr = buf;
- int i, linelen, remaining = len;
- unsigned char linebuf[200];
-
- if (rowsize != 16 && rowsize != 32)
- rowsize = 16;
-
- for (i = 0; i < len; i += rowsize) {
- linelen = min(remaining, rowsize);
- remaining -= rowsize;
- hex_dump_to_buffer(ptr + i, linelen, rowsize, groupsize,
- linebuf, sizeof(linebuf), ascii);
+ size_t i;
+ size_t linelen;
+ size_t prefix_len = strlen(prefix_str);
+ unsigned char linebuf[sizeof(KERN_INFO) +
+ MAX_PREFIX_LEN +
+ (2 * sizeof(void *) + 4) +
+ (3 * ROWSIZE) +
+ (3 * ROWSIZE / 2) + 1];
+ if (prefix_len > MAX_PREFIX_LEN)
+ prefix_len = MAX_PREFIX_LEN;
+
+ i = 0;
+ while (i < len) {
+ size_t bytes;
+ linelen = min(len - i, ROWSIZE);
+ bytes = hex_dump_to_buffer(ptr + i, linelen, ROWSIZE, groupsize,
+ linebuf, sizeof(linebuf), ascii);

switch (prefix_type) {
case DUMP_PREFIX_ADDRESS:
- printk("%s%s%*p: %s\n", level, prefix_str,
- (int)(2 * sizeof(void *)), ptr + i, linebuf);
+ printk("%s%-.*s%*p: %s\n", level,
+ prefix_len, prefix_str,
+ (int)(2 * sizeof(void *)), ptr + i, linebuf);
break;
case DUMP_PREFIX_OFFSET:
- printk("%s%s%.8x: %s\n", level, prefix_str, i, linebuf);
+ printk("%s%-.*s%.8x: %s\n", level,
+ prefix_len, prefix_str, i, linebuf);
break;
default:
- printk("%s%s%s\n", level, prefix_str, linebuf);
+ printk("%s%-.*s%s\n", level,
+ prefix_len, prefix_str, linebuf);
break;
}
+ i += bytes;
}
}
EXPORT_SYMBOL(print_hex_dump);
@@ -187,12 +170,11 @@ EXPORT_SYMBOL(print_hex_dump);
* @len: number of bytes in the @buf
*
* Calls print_hex_dump(), with log level of KERN_DEBUG,
- * rowsize of 16, groupsize of 1, and ASCII output included.
+ * groupsize of 1, and ASCII output included.
*/
void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
- const void *buf, size_t len)
+ const void *buf, size_t len)
{
- print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, 16, 1,
- buf, len, 1);
+ print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, 1, buf, len, true);
}
EXPORT_SYMBOL(print_hex_dump_bytes);
diff --git a/mm/slub.c b/mm/slub.c
index e2989ae..a9324c6 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -378,36 +378,10 @@ static char *slub_debug_slabs;
/*
* Object debugging
*/
-static void print_section(char *text, u8 *addr, unsigned int length)
+static void print_section(const char *text, const u8 *addr, size_t length)
{
- int i, offset;
- int newline = 1;
- char ascii[17];
-
- ascii[16] = 0;
-
- for (i = 0; i < length; i++) {
- if (newline) {
- printk(KERN_ERR "%8s 0x%p: ", text, addr + i);
- newline = 0;
- }
- printk(KERN_CONT " %02x", addr[i]);
- offset = i % 16;
- ascii[offset] = isgraph(addr[i]) ? addr[i] : '.';
- if (offset == 15) {
- printk(KERN_CONT " %s\n", ascii);
- newline = 1;
- }
- }
- if (!newline) {
- i %= 16;
- while (i < 16) {
- printk(KERN_CONT " ");
- ascii[i] = ' ';
- i++;
- }
- printk(KERN_CONT " %s\n", ascii);
- }
+ print_hex_dump(KERN_ERR, text, DUMP_PREFIX_ADDRESS, 1,
+ addr, length, true);
}

static struct track *get_track(struct kmem_cache *s, void *object,
@@ -517,12 +491,12 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
p, p - addr, get_freepointer(s, p));

if (p > addr + 16)
- print_section("Bytes b4", p - 16, 16);
+ print_section("Bytes b4: ", p - 16, 16);

- print_section("Object", p, min(s->objsize, 128));
+ print_section("Object: ", p, min(s->objsize, 128));

if (s->flags & SLAB_RED_ZONE)
- print_section("Redzone", p + s->objsize,
+ print_section("Redzone: ", p + s->objsize,
s->inuse - s->objsize);

if (s->offset)
@@ -535,7 +509,7 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)

if (off != s->size)
/* Beginning of the filler is the free pointer */
- print_section("Padding", p + off, s->size - off);
+ print_section("Padding: ", p + off, s->size - off);

dump_stack();
}
@@ -699,7 +673,7 @@ static int slab_pad_check(struct kmem_cache *s, struct page *page)
end--;

slab_err(s, page, "Padding overwritten. 0x%p-0x%p", fault, end - 1);
- print_section("Padding", start, length);
+ print_section("Padding: ", start, length);

restore_bytes(s, "slab padding", POISON_INUSE, start, end);
return 0;
@@ -829,7 +803,7 @@ static void trace(struct kmem_cache *s, struct page *page, void *object, int all
page->freelist);

if (!alloc)
- print_section("Object", (void *)object, s->objsize);
+ print_section("Object: ", (void *)object, s->objsize);

dump_stack();
}
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index 56956ec..2e6e987 100644
--- a/drivers/mtd/ubi/debug.c
+++ b/drivers/mtd/ubi/debug.c
@@ -42,8 +42,8 @@ void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
dbg_msg("data_offset %d", be32_to_cpu(ec_hdr->data_offset));
dbg_msg("hdr_crc %#08x", be32_to_cpu(ec_hdr->hdr_crc));
dbg_msg("erase counter header hexdump:");
- print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
- ec_hdr, UBI_EC_HDR_SIZE, 1);
+ print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 1,
+ ec_hdr, UBI_EC_HDR_SIZE, true);
}

/**
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index db3efde..8cc5edb 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -1253,8 +1253,8 @@ static int paranoid_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
fail:
ubi_err("paranoid check failed for PEB %d", pnum);
dbg_msg("hex dump of the %d-%d region", offset, offset + len);
- print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
- ubi->dbg_peb_buf, len, 1);
+ print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 1,
+ ubi->dbg_peb_buf, len, true);
err = 1;
error:
ubi_dbg_dump_stack();
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 7c5b05a..fcdfa04 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -886,7 +886,7 @@ static void e1000_dump_eeprom(struct e1000_adapter *adapter)

printk(KERN_ERR "Offset Values\n");
printk(KERN_ERR "======== ======\n");
- print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0);
+ print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 1, data, 128, false);

printk(KERN_ERR "Include this output when contacting your support "
"provider.\n");
diff --git a/drivers/net/enc28j60.c b/drivers/net/enc28j60.c
index 0809a6a..c71e446 100644
--- a/drivers/net/enc28j60.c
+++ b/drivers/net/enc28j60.c
@@ -835,8 +835,8 @@ static void enc28j60_dump_rsv(struct enc28j60_net *priv, const char *msg,
static void dump_packet(const char *msg, int len, const char *data)
{
printk(KERN_DEBUG DRV_NAME ": %s - packet len:%d\n", msg, len);
- print_hex_dump(KERN_DEBUG, "pk data: ", DUMP_PREFIX_OFFSET, 16, 1,
- data, len, true);
+ print_hex_dump(KERN_DEBUG, "pk data: ", DUMP_PREFIX_OFFSET, 1,
+ data, len, true);
}

/*
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 5ee1ad6..53167ee 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -174,8 +174,8 @@ static void iwl3945_print_hex_dump(int level, void *p, u32 len)
if (!(iwl3945_debug_level & level))
return;

- print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
- p, len, 1);
+ print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 1,
+ p, len, true);
#endif
}

diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index f423241..e83443b 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -173,8 +173,8 @@ static void iwl4965_print_hex_dump(int level, void *p, u32 len)
if (!(iwl4965_debug_level & level))
return;

- print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
- p, len, 1);
+ print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 1,
+ p, len, true);
#endif
}

diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 4b92c84..22b48f0 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -108,8 +108,8 @@ static void ccw_timeout_log(struct ccw_device *cdev)
printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
"device information:\n", get_clock());
printk(KERN_WARNING "cio: orb:\n");
- print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
- &private->orb, sizeof(private->orb), 0);
+ print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 1,
+ &private->orb, sizeof(private->orb), false);
printk(KERN_WARNING "cio: ccw device bus id: %s\n", cdev->dev.bus_id);
printk(KERN_WARNING "cio: subchannel bus id: %s\n", sch->dev.bus_id);
printk(KERN_WARNING "cio: subchannel lpm: %02x, opm: %02x, "
@@ -121,18 +121,19 @@ static void ccw_timeout_log(struct ccw_device *cdev)
else
printk(KERN_WARNING "cio: last channel program:\n");

- print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
+ print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 1,
(void *)(addr_t)private->orb.cpa,
- sizeof(struct ccw1), 0);
+ sizeof(struct ccw1), false);
printk(KERN_WARNING "cio: ccw device state: %d\n",
cdev->private->state);
printk(KERN_WARNING "cio: store subchannel returned: cc=%d\n", cc);
printk(KERN_WARNING "cio: schib:\n");
- print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
- &schib, sizeof(schib), 0);
+ print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 1,
+ &schib, sizeof(schib), false);
printk(KERN_WARNING "cio: ccw device flags:\n");
- print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
- &cdev->private->flags, sizeof(cdev->private->flags), 0);
+ print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 1,
+ &cdev->private->flags, sizeof(cdev->private->flags),
+ false);
}

/*
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 68e5c63..7030bb6 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -243,7 +243,7 @@ static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsign

static void ide_scsi_hex_dump(u8 *data, int len)
{
- print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, data, len, 0);
+ print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 1, data, len, false);
}

static int idescsi_check_condition(ide_drive_t *drive, struct request *failed_command)
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 3301167..7207359 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -718,8 +718,8 @@ static void dump_msg(struct fsg_dev *fsg, const char *label,
{
if (length < 512) {
DBG(fsg, "%s, length %u:\n", label, length);
- print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET,
- 16, 1, buf, length, 0);
+ print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 1,
+ buf, length, false);
}
}

@@ -736,8 +736,8 @@ static void dump_msg(struct fsg_dev *fsg, const char *label,

static void dump_cdb(struct fsg_dev *fsg)
{
- print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE,
- 16, 1, fsg->cmnd, fsg->cmnd_size, 0);
+ print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE, 1,
+ fsg->cmnd, fsg->cmnd_size, false);
}

#else
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index cf2a2c3..50734af 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -464,9 +464,9 @@ static void ext3_destroy_inode(struct inode *inode)
if (!list_empty(&(EXT3_I(inode)->i_orphan))) {
printk("EXT3 Inode %p: orphan list check failed!\n",
EXT3_I(inode));
- print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4,
- EXT3_I(inode), sizeof(struct ext3_inode_info),
- false);
+ print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 4,
+ EXT3_I(inode), sizeof(struct ext3_inode_info),
+ true);
dump_stack();
}
kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 93beb86..65d8b78 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -580,9 +580,9 @@ static void ext4_destroy_inode(struct inode *inode)
if (!list_empty(&(EXT4_I(inode)->i_orphan))) {
printk("EXT4 Inode %p: orphan list check failed!\n",
EXT4_I(inode));
- print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4,
- EXT4_I(inode), sizeof(struct ext4_inode_info),
- true);
+ print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 4,
+ EXT4_I(inode), sizeof(struct ext4_inode_info),
+ true);
dump_stack();
}
kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index d1d4f27..8f0edf2 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -248,12 +248,12 @@ static int jffs2_verify_write(struct jffs2_sb_info *c, unsigned char *buf,

printk(KERN_WARNING "Write verify error (ECC %s) at %08x. Wrote:\n",
eccstr, c->wbuf_ofs);
- print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1,
- c->wbuf, c->wbuf_pagesize, 0);
+ print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 1,
+ c->wbuf, c->wbuf_pagesize, false);

printk(KERN_WARNING "Read back:\n");
- print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1,
- c->wbuf_verify, c->wbuf_pagesize, 0);
+ print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 1,
+ c->wbuf_verify, c->wbuf_pagesize, false);

return -EIO;
}
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 9bf29f7..5946ef8 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -890,8 +890,8 @@ int diFree(struct inode *ip)
* the map.
*/
if (iagno >= imap->im_nextiag) {
- print_hex_dump(KERN_ERR, "imap: ", DUMP_PREFIX_ADDRESS, 16, 4,
- imap, 32, 0);
+ print_hex_dump(KERN_ERR, "imap: ", DUMP_PREFIX_ADDRESS, 4,
+ imap, 32, false);
jfs_error(ip->i_sb,
"diFree: inum = %d, iagno = %d, nextiag = %d",
(uint) inum, iagno, imap->im_nextiag);
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 325a967..4df3b0e 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1625,16 +1625,19 @@ void jfs_flush_journal(struct jfs_log *log, int wait)
if (lp->xflag & COMMIT_PAGE) {
struct metapage *mp = (struct metapage *)lp;
print_hex_dump(KERN_ERR, "metapage: ",
- DUMP_PREFIX_ADDRESS, 16, 4,
- mp, sizeof(struct metapage), 0);
+ DUMP_PREFIX_ADDRESS, 4,
+ mp, sizeof(struct metapage),
+ false);
print_hex_dump(KERN_ERR, "page: ",
- DUMP_PREFIX_ADDRESS, 16,
+ DUMP_PREFIX_ADDRESS,
sizeof(long), mp->page,
- sizeof(struct page), 0);
+ sizeof(struct page),
+ false);
} else
print_hex_dump(KERN_ERR, "tblock:",
- DUMP_PREFIX_ADDRESS, 16, 4,
- lp, sizeof(struct tblock), 0);
+ DUMP_PREFIX_ADDRESS, 4,
+ lp, sizeof(struct tblock),
+ false);
}
}
#else
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index d1e64f2..28f0b0c 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -466,8 +466,8 @@ add_failed:
printk(KERN_ERR "JFS: bio_add_page failed unexpectedly\n");
goto skip;
dump_bio:
- print_hex_dump(KERN_ERR, "JFS: dump of bio: ", DUMP_PREFIX_ADDRESS, 16,
- 4, bio, sizeof(*bio), 0);
+ print_hex_dump(KERN_ERR, "JFS: dump of bio: ", DUMP_PREFIX_ADDRESS, 4,
+ bio, sizeof(*bio), false);
skip:
bio_put(bio);
unlock_page(page);
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index e7c60ae..3835efd 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -830,15 +830,16 @@ struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp,
/* assert(jfs_ip->fileset == AGGREGATE_I); */
if (jfs_ip->fileset != AGGREGATE_I) {
printk(KERN_ERR "txLock: trying to lock locked page!");
- print_hex_dump(KERN_ERR, "ip: ", DUMP_PREFIX_ADDRESS, 16, 4,
- ip, sizeof(*ip), 0);
- print_hex_dump(KERN_ERR, "mp: ", DUMP_PREFIX_ADDRESS, 16, 4,
- mp, sizeof(*mp), 0);
+ print_hex_dump(KERN_ERR, "ip: ", DUMP_PREFIX_ADDRESS, 4,
+ ip, sizeof(*ip), false);
+ print_hex_dump(KERN_ERR, "mp: ", DUMP_PREFIX_ADDRESS, 4,
+ mp, sizeof(*mp), false);
print_hex_dump(KERN_ERR, "Locker's tblock: ",
- DUMP_PREFIX_ADDRESS, 16, 4, tid_to_tblock(tid),
- sizeof(struct tblock), 0);
- print_hex_dump(KERN_ERR, "Tlock: ", DUMP_PREFIX_ADDRESS, 16, 4,
- tlck, sizeof(*tlck), 0);
+ DUMP_PREFIX_ADDRESS, 4,
+ tid_to_tblock(tid), sizeof(struct tblock),
+ false);
+ print_hex_dump(KERN_ERR, "Tlock: ", DUMP_PREFIX_ADDRESS, 4,
+ tlck, sizeof(*tlck), false);
BUG();
}
INCREMENT(stattx.waitlock); /* statistics */
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 9b7f2cd..e45a061 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -590,8 +590,8 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
size_check:
if (EALIST_SIZE(ea_buf->xattr) != ea_size) {
printk(KERN_ERR "ea_get: invalid extended attribute\n");
- print_hex_dump(KERN_ERR, "", DUMP_PREFIX_ADDRESS, 16, 1,
- ea_buf->xattr, ea_size, 1);
+ print_hex_dump(KERN_ERR, "", DUMP_PREFIX_ADDRESS, 1,
+ ea_buf->xattr, ea_size, true);
ea_release(inode, ea_buf);
rc = -EIO;
goto clean_up;
diff --git a/fs/xfs/support/debug.c b/fs/xfs/support/debug.c
index c27abef..f74e059 100644
--- a/fs/xfs/support/debug.c
+++ b/fs/xfs/support/debug.c
@@ -84,5 +84,5 @@ assfail(char *expr, char *file, int line)
void
xfs_hex_dump(void *p, int length)
{
- print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_OFFSET, 16, 1, p, length, 1);
+ print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_OFFSET, 1, p, length, true);
}
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 1ab8c01..7724636 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -90,8 +90,7 @@ static char *check[] = {
static void hexdump(unsigned char *buf, unsigned int len)
{
print_hex_dump(KERN_CONT, "", DUMP_PREFIX_OFFSET,
- 16, 1,
- buf, len, false);
+ 1, buf, len, false);
}

static void tcrypt_complete(struct crypto_async_request *req, int err)

2008-02-08 20:25:34

by Christoph Lameter

[permalink] [raw]
Subject: Re: [PATCH] mm/slub.c - Use print_hex_dump

Argh. You need to cut that into small pieces so that it is easier to
review. CCing Randy who was involved with prior art in this area.


2008-02-08 20:33:57

by Joe Perches

[permalink] [raw]
Subject: Re: [PATCH] mm/slub.c - Use print_hex_dump

On Fri, 2008-02-08 at 12:25 -0800, Christoph Lameter wrote:
> Argh. You need to cut that into small pieces so that it is easier to
> review. CCing Randy who was involved with prior art in this area.

lib/hexdump is the major change.
mm/slub is a removal/conversion.
the rest are trivial.