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path: root/util-linux/mdev.c
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2013-02-27mdev: improve $SEQ handling; improve debug loggingDenys Vlasenko
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>
2013-02-26mdev: add environment variable matchDenys Vlasenko
function old new delta make_device 1998 2189 +191 clean_up_cur_rule 61 96 +35 dirAction 75 87 +12 mdev_main 838 849 +11 packed_usage 29272 29273 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/0 up/down: 250/0) Total: 250 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-04mdev: chdir back to /dev after trying to read firmwareDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-30mdev: extend debug logging outputDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-21mdev: fix mode of dir1 in =dir1/dir2/file ruleDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-05-19mdev: tell kernel that we didn't find the firmwareChristoph Lohmann
function old new delta mdev_main 797 801 +4 Signed-off-by: Christoph Lohmann <20h@r-36.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-05-19Merge branch 'master' of git+ssh://vda@busybox.net/var/lib/git/busyboxDenys Vlasenko
2012-05-18mdev: remove undocumented subsystem/devname matching hackDenys Vlasenko
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>
2012-05-18mdev: when found, print major,minor into mdev.logDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-05-18tweak help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-05-18mdev: add support for $DEVNAME and /dev/mdev.log debug aidDenys Vlasenko
function old new delta make_device 1843 2083 +240 mdev_main 712 804 +92 packed_usage 29236 29251 +15 keywords 288 19 -269 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 347/-269) Total: 78 bytes text data bss dec hex filename 887506 497 7584 895587 daa63 busybox_old 887982 497 7584 896063 dac3f busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-21mdev: fix mode of creatred node if config file support is not configuredDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-02-06mdev: add a comment. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-01-30mdev: fix wrong sizeofJavier Viguera
Signed-off-by: Javier Viguera <javier.viguera@digi.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-01-11mdev: do not treat non-leading '#' chars as start of comment. Closes 4676Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-22mdev: trim overlong comments. No code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-22mdev: don't reparse rules on -sDenys Vlasenko
function old new delta make_device 1648 1843 +195 clean_up_cur_rule - 61 +61 make_default_cur_rule - 41 +41 mdev_main 690 712 +22 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 2/0 up/down: 319/0) Total: 319 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-21add INIT_G()'s. No code changes.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-19mdev: expand --help so that it's actually useful.Denys Vlasenko
function old new delta packed_usage 28634 28822 +188 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-05-16simplify parsing of /etc/busybox.confDenys Vlasenko
function old new delta parse_config_file 799 667 -132 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-04-11move remaining help text from include/usage.src.hPere Orga
Signed-off-by: Pere Orga <gotrunks@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-16*: make GNU licensing statement forms more regularDenys Vlasenko
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>
2010-08-16mdev: fix non-working device deletion, add a test for thatDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-24*: introduce and use bb_unsetenv_and_freeDenys Vlasenko
function old new delta bb_unsetenv_and_free - 17 +17 tcpudpsvd_main 1819 1810 -9 safe_setenv 58 47 -11 udhcp_run_script 630 616 -14 make_device 1683 1663 -20 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/4 up/down: 17/-54) Total: -37 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-04-02mdev: add "!" syntax supportDenys Vlasenko
Based on the patch by Steve Bennett <steveb@workware.net.au> function old new delta make_device 1640 1673 +33 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-03-23*: merge some common stringsDenys Vlasenko
text data bss dec hexfilename 838650 8009 0 846659 ceb43busybox_old 838519 8009 0 846528 ceac0busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-03-16mdev: fix a trivial SEGVDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-02-24mdev: fix subsystem passing (new kernels broke it again) - bugs 639, 721.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-02-04*: suppress ~60% of "aliased warnings" on gcc-4.4.1Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-07mdev: print line# in error messagesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-01mdev: do not die on mknod errorsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-27mdev: adjust error messageBernhard Reutner-Fischer
function old new delta .rodata 126715 126706 -9 (reusing common error string) Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-27mdev: handle string modesBernhard Reutner-Fischer
parse ugoa=rwxXst via bb_parse_mode (+5b) Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-27mdev: tiny shrinkage by index_in_stringsBernhard Reutner-Fischer
text data bss dec hex filename 2633 0 0 2633 a49 util-linux/mdev.o.old 2624 0 0 2624 a40 util-linux/mdev.o Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-02mdev: be more permissive on errors (dont die): mdev -s users want thatDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-02mdev: set $MDEV correctly for renamed nodesDenys Vlasenko
function old new delta make_device 1467 1502 +35 build_alias 78 - -78 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-22mdev: fix the case when move rule deletes node with name == device_nameDenys Vlasenko
Signed-off-by: Jean Wolter <jw5@os.inf.tu-dresden.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-04mdev: revert last wrong commitDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-02mdev: do not exit if user:group parse failed. closes bug 309.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-01mdev: fix a case where we mangle device_path string and then use it.Denys Vlasenko
2009-04-19mdev: enlarge inline documentationDenis Vlasenko
2009-04-19mdev: support $ENVVAR=regexDenis Vlasenko
2009-04-19mdev: Rob's #if forest removalDenis Vlasenko
*: remove superfluous conts in "f(type *const param)"
2009-04-17mdev: add large comment, fix a buglet with subsystem and /sys/blockDenis Vlasenko
2009-04-16mdev: set mode, needed when device node already exists.Denis Vlasenko
2009-04-16mdev: change subsystem syntax from /subsystem to subsystem/devnameDenis Vlasenko
2009-04-14mdev: safer handling of $SUBSYSTEM in mdev -sDenis Vlasenko
2009-04-14randomconfig fixesDenis Vlasenko
2009-04-13mdev: add support for - "dont stop here" charDenis Vlasenko
function old new delta make_device 1340 1362 +22 packed_usage 26291 26299 +8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 30/0) Total: 30 bytes
2009-04-13mdev: provide $SUBSYSTEM (by Vladimir)Denis Vlasenko
function old new delta make_device 1265 1340 +75 dirAction 14 60 +46 mdev_main 676 695 +19 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 140/0) Total: 140 bytes
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