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annotate toys/other/partprobe.c @ 1746:b11f536bac74 draft

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install -D bugfix from David Halls. (I tweaked some comment text while I was there.)
author Rob Landley <rob@landley.net>
date Sat, 21 Mar 2015 15:49:38 -0500
parents 5662f0664060
children
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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1 /* partprobe.c - Tell the kernel about partition table changes
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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2 *
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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3 * Copyright 2014 Bertold Van den Bergh <vandenbergh@bertold.org>
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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4 *
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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5 * see http://man7.org/linux/man-pages/man8/partprobe.8.html
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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6
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a498d143be72 Cleanup partprobe.
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7 USE_PARTPROBE(NEWTOY(partprobe, "<1", TOYFLAG_SBIN))
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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8
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
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9 config PARTPROBE
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
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10 bool "partprobe"
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5662f0664060 Promote partprobe.
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11 default y
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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12 help
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13 usage: partprobe DEVICE...
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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14
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a498d143be72 Cleanup partprobe.
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15 Tell the kernel about partition table changes
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16
a498d143be72 Cleanup partprobe.
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17 Ask the kernel to re-read the partition table on the specified devices.
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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18 */
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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20 #include "toys.h"
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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21
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22 static void do_partprobe(int fd, char *name)
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
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23 {
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24 if (ioctl(fd, BLKRRPART, 0)) perror_msg("ioctl failed");
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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25 }
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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27 void partprobe_main(void)
94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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28 {
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29 loopfiles(toys.optargs, do_partprobe);
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94e143a0089f I have attached a patch adding a program that allows re-reading the partition table. This is often used on embedded systems booting from SD/USB devices that need to resize partitions on first boot.
Bertold Van den Bergh <vandenbergh@bertold.org>
parents:
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30 }