From: Andrew Morton <akpm@digeo.com>
To: Simon Kirby <sim@netnation.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not 3.0 - (NUMA))
Date: Mon, 07 Oct 2002 20:00:30 -0700 [thread overview]
Message-ID: <3DA24A4E.87BEBD2C@digeo.com> (raw)
In-Reply-To: 20021008025457.GA26788@netnation.com
Simon Kirby wrote:
>
> On Mon, Oct 07, 2002 at 07:50:27PM -0700, Andrew Morton wrote:
>
> > Oh tell me about it.
> >
> > Appended is the offset->block mapping for my "linux-kernel" mailbox.
> > Read it and weep...
>
> Eep. :) Just out of interest, how did you get these mappings?
>
/*
* Show file blocks
*/
#include <unistd.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <linux/fs.h>
static const char *myname;
int main(int argc, char **argv)
{
int i, err = 0;
int fd;
long blksize;
off_t filesz;
long fileblks, blk;
long start = -1, end = -1;
long first_logical = -1;
myname = argv[0];
while((i = getopt(argc, argv, "")) != EOF) {
switch(i) {
default:
err++;
break;
}
}
if (err || optind != argc-1) {
fprintf(stderr, "Usage: %s file\n",
myname);
exit(1);
}
fd = open(argv[optind], O_RDONLY);
if (fd == -1) {
perror(argv[optind]);
exit(1);
}
if (ioctl(fd, FIGETBSZ, &blksize) == -1) {
perror("FIGETBSZ");
fprintf(stderr, "assuming 4096\n");
blksize = 4096;
}
filesz = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
fileblks = (filesz + blksize-1) / blksize;
err = 0;
for(blk = 0; blk < fileblks; blk++) {
long devblk = blk;
if (ioctl(fd, FIBMAP, &devblk) == -1) {
if (errno == -EPERM) {
fprintf(stderr, "got root?\n");
exit(1);
}
printf("%ld: %d (%s)\n",
blk, errno, strerror(errno));
err++;
} else {
if (start == -1) {
start = devblk;
end = devblk;
first_logical = blk;
} else {
if (devblk == end + 1) {
end++;
} else {
printf("%ld-%ld: %ld-%ld (%ld)\n",
first_logical,
first_logical+(end-start),
start, end,
end - start + 1);
start = devblk;
end = devblk;
first_logical = blk;
}
}
}
}
if (start != -1)
printf("%ld-%ld: %ld-%ld (%ld)\n",
first_logical,
first_logical+(end-start),
start, end,
end - start + 1);
exit(err ? 1 : 0);
}
next prev parent reply other threads:[~2002-10-08 2:55 UTC|newest]
Thread overview: 206+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-24 1:54 [PATCH-RFC] 4 of 4 - New problem logging macros, SCSI RAID device driver Larry Kessler
2002-09-24 2:22 ` Jeff Garzik
2002-09-26 15:52 ` Alan Cox
2002-09-26 22:55 ` [PATCH-RFC] 4 of 4 - New problem logging macros, SCSI RAIDdevice driver Larry Kessler
2002-09-26 22:58 ` Jeff Garzik
2002-09-26 23:07 ` Linus Torvalds
2002-09-27 2:27 ` Jeff Garzik
2002-09-27 4:45 ` Linus Torvalds
2002-09-28 7:46 ` Ingo Molnar
2002-09-28 9:16 ` jw schultz
2002-09-30 14:05 ` Denis Vlasenko
2002-09-30 10:22 ` Tomas Szepe
2002-09-30 11:10 ` jw schultz
2002-09-30 11:17 ` Adrian Bunk
2002-09-30 19:48 ` Rik van Riel
2002-09-30 20:30 ` Christoph Hellwig
2002-09-28 15:40 ` Kernel version [Was: Re: [PATCH-RFC] 4 of 4 - New problem logging macros, SCSI RAIDdevice driver] Horst von Brand
2002-09-29 1:31 ` v2.6 vs v3.0 Linus Torvalds
2002-09-29 6:14 ` james
2002-09-29 6:55 ` Andre Hedrick
2002-09-29 12:59 ` Gerhard Mack
2002-09-29 13:46 ` Dr. David Alan Gilbert
2002-09-29 14:06 ` Wakko Warner
2002-09-29 15:42 ` Jens Axboe
2002-09-29 16:21 ` Alan Cox
2002-09-29 16:17 ` Jens Axboe
2002-09-30 0:39 ` Jeff Chua
2002-09-29 16:22 ` Dave Jones
2002-09-29 16:26 ` Jens Axboe
2002-09-29 21:46 ` Matthias Andree
2002-09-30 7:05 ` Michael Clark
2002-09-30 7:22 ` Andrew Morton
2002-09-30 13:08 ` Kevin Corry
2002-09-30 13:05 ` Kevin Corry
2002-09-30 13:49 ` Michael Clark
2002-09-30 14:26 ` Kevin Corry
2002-09-30 13:59 ` Michael Clark
2002-09-30 15:50 ` Kevin Corry
2002-09-29 17:06 ` Jochen Friedrich
2002-09-29 15:18 ` Trever L. Adams
2002-09-29 15:45 ` Jens Axboe
2002-09-29 15:59 ` Trever L. Adams
2002-09-29 16:06 ` Jens Axboe
2002-09-29 16:13 ` Trever L. Adams
2002-09-30 6:54 ` Kai Henningsen
2002-09-30 18:40 ` Bill Davidsen
2002-10-01 12:38 ` Matthias Andree
2002-10-04 19:58 ` Bill Davidsen
2002-09-29 17:42 ` Linus Torvalds
2002-09-29 17:54 ` Rik van Riel
2002-09-29 18:24 ` Alan Cox
2002-09-30 7:56 ` Jens Axboe
2002-09-30 9:53 ` Andre Hedrick
2002-09-30 11:54 ` Jens Axboe
2002-09-30 12:58 ` Alan Cox
2002-09-30 13:05 ` Jens Axboe
2002-10-01 2:17 ` Andre Hedrick
2002-09-30 16:39 ` jbradford
2002-09-30 16:47 ` Pau Aliagas
2002-09-29 7:16 ` jbradford
2002-09-29 8:08 ` Jeff Garzik
2002-09-29 8:17 ` David S. Miller
2002-09-29 9:12 ` Jens Axboe
2002-09-29 11:19 ` Murray J. Root
2002-09-29 15:50 ` Jens Axboe
2002-09-30 7:01 ` Kai Henningsen
2002-09-29 16:04 ` Zwane Mwaikambo
2002-09-29 14:56 ` Alan Cox
2002-09-29 15:38 ` Jens Axboe
2002-09-29 16:30 ` Dave Jones
2002-09-29 16:42 ` Bjoern A. Zeeb
2002-09-29 21:16 ` Russell King
2002-09-29 21:32 ` Alan Cox
2002-09-29 21:49 ` steve
2002-09-29 21:52 ` Matthias Andree
2002-09-30 7:31 ` Tomas Szepe
2002-09-30 15:33 ` Jan Harkes
2002-09-30 18:13 ` Jeff Willis
2002-09-29 17:48 ` Linus Torvalds
2002-09-29 18:13 ` Jaroslav Kysela
2002-09-30 19:32 ` Bill Davidsen
2002-10-01 6:26 ` Jens Axboe
2002-10-01 7:54 ` Mikael Pettersson
2002-10-01 8:27 ` Jens Axboe
2002-10-01 8:44 ` jbradford
2002-10-01 11:31 ` Alan Cox
2002-10-01 11:25 ` Jens Axboe
2002-09-29 15:34 ` Andi Kleen
2002-09-29 17:26 ` Jochen Friedrich
2002-09-29 17:35 ` Jeff Garzik
2002-09-30 0:00 ` Andi Kleen
2002-10-01 19:28 ` IPv6 stability (success story ;) Petr Baudis
2002-09-29 9:15 ` v2.6 vs v3.0 Jens Axboe
2002-09-29 19:53 ` james
2002-09-29 15:26 ` Matthias Andree
2002-09-29 16:24 ` Alan Cox
2002-09-29 22:00 ` Matthias Andree
2002-09-30 19:02 ` Bill Davidsen
2002-09-30 18:37 ` Bill Davidsen
2002-10-03 15:51 ` [OT] 2.6 not 3.0 - (WAS Re: [PATCH-RFC] 4 of 4 - New problem logging macros, SCSI RAIDdevice) jbradford
2002-10-03 15:57 ` Linus Torvalds
2002-10-03 16:16 ` [OT] 2.6 not 3.0 - (WAS Re: [PATCH-RFC] 4 of 4 - New problem jbradford
2002-10-03 22:30 ` Greg KH
2002-10-04 6:33 ` jbradford
2002-10-04 6:37 ` Greg KH
2002-10-04 7:17 ` jbradford
2002-10-04 7:30 ` Greg KH
2002-10-03 16:37 ` [OT] 2.6 not 3.0 - (WAS Re: [PATCH-RFC] 4 of 4 - New problem logging macros, SCSI RAIDdevice) Alan Cox
2002-10-03 16:56 ` Linus Torvalds
2002-10-03 17:40 ` Alan Cox
2002-10-03 19:55 ` jlnance
2002-10-03 16:51 ` Dave Jones
2002-10-03 17:04 ` Alan Cox
2002-10-03 20:43 ` Andrew Morton
2002-10-03 22:05 ` Dave Jones
2002-10-04 3:46 ` Andreas Boman
2002-10-04 7:44 ` jbradford
2002-10-03 19:51 ` Rik van Riel
2002-10-04 22:26 ` [OT] 2.6 not 3.0 - (NUMA) Martin J. Bligh
2002-10-04 23:13 ` Linus Torvalds
2002-10-05 0:21 ` Martin J. Bligh
2002-10-05 0:36 ` Linus Torvalds
2002-10-05 1:25 ` Michael Hohnbaum
2002-10-05 20:30 ` The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not 3.0 - (NUMA)) Rob Landley
2002-10-06 2:15 ` Andrew Morton
2002-10-06 9:42 ` Russell King
2002-10-06 17:06 ` Alan Cox
2002-10-06 13:44 ` Oliver Neukum
2002-10-06 15:19 ` Martin J. Bligh
2002-10-06 15:14 ` Oliver Neukum
2002-10-07 8:08 ` Helge Hafting
2002-10-07 9:18 ` Oliver Neukum
2002-10-07 14:11 ` Jan Hudec
2002-10-07 15:01 ` Jesse Pollard
2002-10-07 15:34 ` Jan Hudec
2002-10-08 3:12 ` [OT] " Scott Mcdermott
2002-10-10 23:49 ` Mike Fedyk
2002-10-07 15:15 ` Martin J. Bligh
2002-10-08 13:49 ` Helge Hafting
2002-10-07 17:43 ` Daniel Phillips
2002-10-07 18:31 ` Andrew Morton
2002-10-07 18:51 ` Linus Torvalds
2002-10-07 20:14 ` Alan Cox
2002-10-07 20:31 ` The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not3.0 " Andrew Morton
2002-10-07 20:46 ` Linus Torvalds
2002-10-07 20:44 ` The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not 3.0 " Linus Torvalds
2002-10-07 21:16 ` The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not3.0 " Andrew Morton
2002-10-07 23:47 ` jw schultz
2002-10-11 0:02 ` Mike Fedyk
2002-10-07 18:58 ` The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not 3.0 " Chris Friesen
2002-10-07 19:21 ` Daniel Phillips
2002-10-07 19:35 ` Linus Torvalds
2002-10-08 0:39 ` Theodore Ts'o
2002-10-08 2:59 ` Andrew Morton
2002-10-08 16:15 ` Theodore Ts'o
2002-10-08 19:39 ` Andrew Morton
2002-10-08 17:06 ` Rob Landley
2002-10-07 19:36 ` Andrew Morton
2002-10-08 2:36 ` Simon Kirby
2002-10-08 2:47 ` Daniel Phillips
2002-10-08 2:50 ` Andrew Morton
2002-10-08 2:54 ` Simon Kirby
2002-10-08 3:00 ` Andrew Morton [this message]
2002-10-08 16:17 ` Theodore Ts'o
2002-10-08 12:49 ` jlnance
2002-10-08 17:09 ` Andrew Morton
2002-10-10 20:53 ` Thomas Zimmerman
2002-10-08 13:54 ` Helge Hafting
2002-10-08 15:31 ` Andreas Dilger
2002-10-07 19:05 ` Daniel Phillips
2002-10-07 19:24 ` Linus Torvalds
2002-10-07 20:02 ` Daniel Phillips
2002-10-07 20:14 ` Andrew Morton
2002-10-07 20:22 ` Daniel Phillips
2002-10-07 20:28 ` Linus Torvalds
2002-10-07 21:16 ` Daniel Phillips
2002-10-07 21:55 ` Linus Torvalds
2002-10-07 22:02 ` Daniel Phillips
2002-10-07 22:12 ` Andrew Morton
2002-10-08 8:49 ` Padraig Brady
2002-10-07 22:14 ` Charles Cazabon
2002-10-30 18:26 ` Lee Leahu
2002-10-06 6:33 ` Martin J. Bligh
2002-10-07 5:28 ` John Alvord
2002-10-07 8:39 ` The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 n Giuliano Pochini
2002-10-07 13:56 ` The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not 3.0 - (NUMA)) Jesse Pollard
2002-10-07 14:03 ` Rob Landley
2002-10-08 22:14 ` Jesse Pollard
2002-10-08 19:11 ` Rob Landley
2002-10-09 8:17 ` Alexander Kellett
2002-10-07 18:22 ` Daniel Phillips
2002-10-08 8:19 ` Jan Hudec
2002-10-11 23:53 ` Hans Reiser
2002-10-11 20:26 ` Rob Landley
2002-10-12 4:14 ` Nick LeRoy
2002-10-13 17:27 ` Rob Landley
2002-10-12 10:03 ` Hans Reiser
2002-10-13 17:32 ` Rob Landley
2002-10-13 23:51 ` Hans Reiser
2002-10-14 16:33 ` Rob Landley
2002-10-14 7:10 ` Nikita Danilov
2002-10-21 15:36 ` [OT] Please don't call it 3.0!! (was Re: The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not 3.0 - (NUMA))) Calin A. Culianu
2002-10-21 16:20 ` Wakko Warner
2002-10-12 11:42 ` The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not 3.0 - (NUMA)) Matthias Andree
2002-10-12 14:56 ` Hugh Dickins
2002-09-27 11:32 ` [PATCH-RFC] 4 of 4 - New problem logging macros, SCSI RAIDdevice driver Alan Cox
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