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| author | Kay Sievers <kay.sievers@vrfy.org> | 2006-11-24 12:15:25 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-12-13 15:38:45 -0800 |
| commit | 1f71740ab9714bf5ae9ee04c724ff0d5c67ca3dc (patch) | |
| tree | 0573d4f21472e7eb3509f71f74dfc8443a415db4 /kernel/module.c | |
| parent | aef6fba4f97bbec1dc5a253f388be9a4c7a30e41 (diff) | |
| download | lwn-1f71740ab9714bf5ae9ee04c724ff0d5c67ca3dc.tar.gz lwn-1f71740ab9714bf5ae9ee04c724ff0d5c67ca3dc.zip | |
Driver core: show "initstate" of module
Show the initialization state(live, coming, going) of the module:
$ cat /sys/module/usbcore/initstate
live
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c index d9eae45d0145..b565eaeff7e6 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -824,9 +824,34 @@ static inline void module_unload_init(struct module *mod) } #endif /* CONFIG_MODULE_UNLOAD */ +static ssize_t show_initstate(struct module_attribute *mattr, + struct module *mod, char *buffer) +{ + const char *state = "unknown"; + + switch (mod->state) { + case MODULE_STATE_LIVE: + state = "live"; + break; + case MODULE_STATE_COMING: + state = "coming"; + break; + case MODULE_STATE_GOING: + state = "going"; + break; + } + return sprintf(buffer, "%s\n", state); +} + +static struct module_attribute initstate = { + .attr = { .name = "initstate", .mode = 0444, .owner = THIS_MODULE }, + .show = show_initstate, +}; + static struct module_attribute *modinfo_attrs[] = { &modinfo_version, &modinfo_srcversion, + &initstate, #ifdef CONFIG_MODULE_UNLOAD &refcnt, #endif |