Currently some new devices that have a bus but no class will
be missed by mdev coldplug device creation after boot. This
happens because mdev recursively searches /sys/class which will
by definition only find class devices.
Some important devices such as iio and gpiochip does not have
a class. But users will need them.
This switches from using /sys/class as the place to look for
devices to create to using /sys/dev where all char and block
devices are listed.
The subsystem lookup code that provide the G.subsystem
environment variable is changed from using the directory
name of the class device to instead dereference the
"subsystem" symlink for the device, and look at the last
element of the path of the symlink for the subsystem, which
will work with class devices and bus devices alike. (The new
bus-only devices only symlink to the /sys/bus/* hierarchy.)
We delete the legacy kernel v2.6.2x /sys/block device path
code as part of this change. It's too old to be kept alive.
Tested on kernel v4.6-rc2 with a bunch of devices, including
some IIO and gpiochip devices.
With a print inserted before make_device() the log looks
like so:
Create device from "/sys/dev/char/1:1", subsystem "mem"
Create device from "/sys/dev/char/1:2", subsystem "mem"
Create device from "/sys/dev/char/1:3", subsystem "mem"
Create device from "/sys/dev/char/1:5", subsystem "mem"
(...)
Create device from "/sys/dev/block/179:56", subsystem "block"
Create device from "/sys/dev/block/179:64", subsystem "block"
function old new delta
mdev_main 1388 1346 -42
dirAction 134 14 -120
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-162) Total: -162 bytes
Cc: Isaac Dunham <ibid.ag@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
"Total allocated sectors 2021315 greater than the maximum 2020356"
maximum what?
Turns out, that's the CHS size of the disk.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Before:
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 998 255471+ 6 FAT16
What are "blocks"? What is that "+"?
How big is this partition?
Is start/end shown came from LBA fields or CHS fields?
Why are we torturing the user??
After:
Device Boot StartCHS EndCHS StartLBA EndLBA Sectors Size Id Type
/dev/sdb1 * 0,1,1 996,15,32 32 510974 510943 249M 6 FAT16
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
The result of looking at "grep -F -B2 '*fill*' busybox_unstripped.map"
text data bss dec hex filename
829901 4086 1904 835891 cc133 busybox_before
829665 4086 1904 835655 cc047 busybox
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
function old new delta
blkdiscard_main - 264 +264
Signed-off-by: Ari Sundholm <ari@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
CC util-linux/swaponoff.o
cc1: warnings being treated as errors
util-linux/swaponoff.c: In function 'swap_enable_disable':
util-linux/swaponoff.c💯 warning: passing argument 1 of 'resolve_mount_spec' from incompatible pointer type
make[1]: *** [util-linux/swaponoff.o] Error 1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
The -e option should only apply to swapon, and it should swallow all
errors/warnings when the device does not exist. So delete the flag
from the swapoff patch and unify the check in the swapoff path.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit adds support for the -R flag of setarch, which disables
randomization of the virtual address space.
function old new delta
setarch_main 115 150 +35
packed_usage 30664 30651 -13
Signed-off-by: Jan Heylen <heyleke@gmail.com>
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Make umount -f more compatible with util-linux 2.22.2.
Before:
* 'umount -f': calls umount syscall,
if it fails calls umount2 with 'MNT_FORCE'
* 'mount -f -l': calls umount syscall,
if it fails calls umount2 with 'MNT_LAZY'. 'MNT_FORCE' dropped
After:
* 'umount -f': calls umount2 syscall with 'MNT_FORCE'
* 'mount -f -l': calls umount2 syscall with 'MNT_LAZY' and 'MNT_FORCE'
function old new delta
umount 45 - -45
umount_main 610 555 -55
Signed-off-by: Anton Bondarenko <anton.bondarenko@axis.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Similar to the "big" util-linux version. For !DMESG_PRETTY, the option is accepted
(but ignored) as well, for compatibility reasons.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
In commit b5c7220e7b
"fbset: respect rgba configuration lines in fb.modes"
I somehow managed to swap the offset/length markers around.
The man page for fb.modes says it should be offset/length
not length/offset as I was accidentally parsing it.
As my fb.modes file was also reversed I didn't notice
until I tried someone elses fb.modes file. Mea culpa.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Introduce a library routine to package the idiom:
p = xmalloc(b, n);
memcpy(p, b, n);
and use it where possible. The example in traceroute used xzalloc
but it didn't need to.
function old new delta
xmemdup - 32 +32
last_main 834 826 -8
make_device 2321 2311 -10
common_traceroute_main 3698 3685 -13
readtoken1 3182 3168 -14
procps_scan 1222 1206 -16
forkchild 655 638 -17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/6 up/down: 32/-78) Total: -46 bytes
Signed-off-by: Ron Yorston <rmy@frippery.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This was seen to happen if two mdevs are run in parallel,
mdev.seq is empty, and the "newer" one manages to write it first.
function old new delta
mdev_main 1366 1388 +22
atoll - 20 +20
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
function old new delta
mount_main 1221 1241 +20
packed_usage 30616 30610 -6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Isaac Dunham <ibid.ag@gmail.com>
Without this patch acpid can't log the events at all. Moreover it tries
to truncate log file every time.
Signed-off-by: Serj Kalichev <serj.kalichev@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
1) real swapon/swapoff handles also devices on the commandline with -a;
2) xstat(device) in swap_enable_disable aborts on error when cycling through
fstab so some devices are not handled;
3) duplicated code for ENABLE_FEATURE_SWAPON_DISCARD and
ENABLE_FEATURE_SWAPON_PRI was moved to functions.
4) silence some error messages with -a;
5) minor cleanups and code refactoring reduced the size as per bloat-check:
6) I also added support for /proc/swaps handling to swapoff:
"When the -a flag is given, swapping is disabled on all known swap devices
and files (as found in /proc/swaps or /etc/fstab)."
So now swapoff first cycles through /proc/swaps and then through fstab
to swapoff all devices.
function old new delta
set_discard_flag - 106 +106
swap_enable_disable 147 238 +91
set_priority_flag - 79 +79
retrieve_file_data 470 467 -3
swap_on_off_main 638 418 -220
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 1/2 up/down: 276/-223) Total: 53 bytes
Signed-off-by: Tito Ragusa <farmatito@tiscali.it>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Swap entries in /etc/fstab inherit the priority specified on the command line unless they have 'pri' in their mount options.
Signed-off-by: Matt Whitlock <busybox@mattwhitlock.name>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Also, the maximum allowable value of swap priority is technically SWAP_FLAG_PRIO_MASK >> SWAP_FLAG_PRIO_SHIFT.
Signed-off-by: Matt Whitlock <busybox@mattwhitlock.name>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
rand() is the most standard C library function,
and on uclibc they are the same. I guess
they are the same in most todays' libc...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Also, use the name of the block device we found, not necessarily the one
we got from the user:
fstrim -v /
/dev/sdj: 4711 bytes were trimmed
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
fstrim applet is a port from util-linux.
"Trimming" your NAND/eMMC storage will restore the write performance
back to normal after having slow down issues on sequential write and
random write due to usage over time.
Good reading on subject:
http://forum.xda-developers.com/showthread.php?t=1971852
(with long options and CLEAN_UP turned on)
function old new delta
.rodata 148494 148791 +297
fstrim_main - 283 +283
fstrim_sfx - 128 +128
packed_usage 28826 28903 +77
applet_main 2760 2768 +8
applet_names 2343 2350 +7
applet_nameofs 690 692 +2
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 5/0 up/down: 802/0) Total: 802 bytes
Signed-off-by: Malek Degachi <malek-degachi@laposte.net>
Cc: Eugene San (eugenesan) <eugenesan@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Config instructions for util-linux/volume_id are moved into the
source files according to the new config feature.
No code change.
Signed-off-by: Sven-Göran Bergh <sgb@systemasis.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Kbuild instructions for util-linux/volume_id are moved into the
source files according to the new build feature.
No code change.
Signed-off-by: Sven-Göran Bergh <sgb@systemasis.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
"losetup -d" was not complaining that LOOPDEV is missing.
"losetup -a" was listing only up to /dev/loop9.
"losetup -f" looped forever if llop0 was taken, and never tried
anything after /dev/loop9.
"-o" with other options (say, -r) had no effect.
function old new delta
losetup_main 376 419 +43
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
516530c932 uses $DEVNAME variable
for device node name. This is fine, but only works for hotplugging,
"mdev -s" will behave differently when DEVNAME and basename(path)
differ.
This patch extracts the DEVNAME from the uevent sysfs file in
make_device(), thus works for hot- and coldplugging; so using
the environment DEVNAME on hotplug events is no longer necessary.
Signed-off-by: Nikolaus Voss <n.voss@weinmann.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
len is declared as uint32_t but le16_to_cpu macro is used
Signed-off-by: Oliver Metz <oliver.metz@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Added -a support. Also made sure -f works as follows:
losetup [-r] [-o offset] {-f|loopdev} file
Removed support for 'losetup -r' with no arguments.
Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sequential run of concurrent mdev's was too simplistic:
they waited for /dev/mdev.seq to match. This could sometimes
cause cumulative loss of time on the order of a second.
Added SIGCHLD signaling from exiting mdev to all other mdev's.
Added debugging required to see that code actually works as intended.
Example of /dev/mdev.log (with "woken up" elevated from dbg lvl 3 to 2):
mdev[1023]: first seq written
^^^^ seq, not pid
mdev[1023]: 35.022395 ACTION:add SUBSYSTEM:module DEVNAME:(null) DEVPATH:/module/lib80211
mdev[1023]: rule matched, line -1
^^^^^^^ means "default rule"
mdev[1023]: 35.022676 exiting
^^^^^^^^^ second,usec timestamp
mdev[1024]: 35.069691 ACTION:add SUBSYSTEM:vc DEVNAME:vcs9 DEVPATH:/devices/virtual/vc/vcs9
mdev[1024]: dev 7,9
mdev[1025]: 35.069889 waiting for '1024'
mdev[1026]: 35.069946 waiting for '1024'
mdev[1027]: 35.070151 waiting for '1024'
mdev[1024]: rule matched, line -1
mdev[1024]: mknod vcs9 (7,9) 20660 0:0
mdev[1024]: 35.070346 exiting
mdev[1025]: woken up
mdev[1026]: woken up
mdev[1025]: 35.071213 ACTION:add SUBSYSTEM:vc DEVNAME:vcsa9 DEVPATH:/devices/virtual/vc/vcsa9
^^^^^^^^^ took only a millisecond to start running after prev mdev exited
mdev[1025]: dev 7,137
mdev[1027]: woken up
mdev[1025]: rule matched, line -1
mdev[1025]: mknod vcsa9 (7,137) 20660 0:0
mdev[1025]: 35.072109 exiting
function old new delta
mdev_main 849 1372 +523
curtime - 59 +59
dirAction 87 134 +47
static.ts - 8 +8
keywords 19 12 -7
make_device 2189 2119 -70
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
When the display unit is sectors, the partition alignment will convert
the partition start to a wrong unit (it should always be in sectors). Fix
this.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
After creating Sun disk label for the first time for a blank disk,
the partition table appears corrupted because current_label_type will
never get set to a proper type. Fix this by calling check_sun_label()
after BusyBox has created the label.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
unc option for CIFS mount is mandatory after CIFS option parsing
was rewritten in Linux 3.4
Signed-off-by: Martin Santesson <martinsn@axis.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Since Linux 3.5 (7ff9554bb5: printk: convert byte-buffer to variable-length
record buffer), klog buffer can now contain log lines with multi-char
loglevel indicators (<[0-9]+>) - So we can no longer just skip 3 bytes.
Instead skip past the terminating '>' like util-linux does.
function old new delta
dmesg_main 266 280 +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 13/0) Total: 13 bytes
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
We set a default path for the directory where pidfiles are create
when FEATURE_PIDFILE is selected. The default has no effect on
applets which must specify a pidfile path on the command line to
run, and it can be overridden by applets which optionally allow
the user to specify the pidfile path.
We also add pidfile write/remove support for klogd, ntpd and watchdog.
For syslogd, we add a missing remove_pidfile() for better cleanup
on daemon exit.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The fbset utility would not respect "rgba" config entries in
the fb.modes file such as this (for the ARM Integrator/CP):
mode "640x480-60-clcd"
# D: 25.175 MHz, H: 31.469 kHz, V: 59.94 Hz
geometry 640 480 640 480 16
timings 39722 48 16 33 10 96 2
rgba 5/10,5/5,5/0,1/15
endmode
This is important especially for this ARGB5551 device which
is hopeless to configure otherwise. I noticed this lacking
feature after the TI "fbtest" program managed to set up the
the colormode correctly.
Signed-off-by: Linus Walleij <triad@df.lth.se>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This patch adds a missing LID0 switch definition.
Without it, closing the notebook lid is not detected by acpid.
Signed-off-by: Eric Martin <eric.martin@gmx.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
It was colliding with matching of devnames with slashes.
We need a more generic way to examine env.vars in rules anyway.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
function old new delta
volume_id_probe_ext 108 132 +24
Signed-off-by: Dees Troy<dees_troy@teamw.in>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Allows one to specify list of filesystem types to be
tried when mounting particular device. E.g.
mount -t vfat,ext2 ...
Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
When compiling with !ENABLE_FEATURE_GETOPT_LONG, busybox still tries
to include getopt.h which is not available; for example with uClibc
when !UCLIBC_HAS_GETOPT_LONG. getopt.h is only required
for the _long set of functions.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
nfs-utils's mount.nfs uses TCP per default unless explicitly asked for
otherwise. This is also the expected behaviour for NFSv4, so ok there,
too.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
With the digit check devices like mmcblk0 were skipped,
but now with 0 allowed we're seeing a ton of loop devices listed
(loop0, loop10, loop20...) as well as ramzswap0,
all which should not be shown in fdisk -l.
function old new delta
list_devs_in_proc_partititons 157 238 +81
Signed-off-by: Lauri Kasanen <curaga@operamail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
fixed the mistake in writing for -make-rprivate option
Signed-off-by: Roman Borisov <ext-roman.borisov@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Don't fail on unknown nfs mount options. The kernel automatically
adds a few mount options that we don't currently handle, like:
sec=null|sys|krb5..
mountaddr=<ip>
mountproto=tcp|udp
local_lock=none|all|flock|posix
Which causes a simple mount -o remount,rw <mountpoint> to fail.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Fixed the --make-shared, --make-rshared, ... etc. (--make-*) options
in the mount command. Now parse_mount_options() may reasonably process such
options.
Fixed: http://lists.busybox.net/pipermail/busybox/2011-January/074511.html
Signed-off-by: Roman Borisov <ext-roman.borisov@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
While at it, make ESC sequences more readable; and removed check for
isatty(stdin) in reset. Code shrink:
text data bss dec hex filename
884771 936 17216 902923 dc70b busybox_old
884723 936 17216 902875 dc6db busybox_unstripped
Signed-off-by: Marek Polacek <mmpolacek@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
When mounting a filesystem without any additional options (data parameter
to the mount(2) syscall), pass NULL instead of an empty string like GNU
mount does. This fixes, for example mounting cgroup fs with bbox mount.
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
NDS32 is a new architecture invented by Andestech.com.
This patch add the support to fdisk utility.
Signed-off-by: Macpaul Lin <macpaul@andestech.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
PLATFORM_LINUX is used as a dependency for applets or features
which require Linux-specific interfaces.
Signed-off-by: Jeremie Koenig <jk@jk.fr.eu.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
