aboutsummaryrefslogtreecommitdiff
path: root/kernel/module.c
diff options
context:
space:
mode:
authorKay Sievers <kay.sievers@vrfy.org>2012-01-13 09:32:15 +1030
committerRusty Russell <rusty@rustcorp.com.au>2012-01-13 09:32:15 +1030
commitcca3e707301862ca9b9327e6a732463982f8cd1b (patch)
tree5cc4767c5167e430209bcea7e43400a9f2e471ab /kernel/module.c
parent8487bfd954928660a52e91384a9b1f1049217e35 (diff)
downloadlinaro-lsk-cca3e707301862ca9b9327e6a732463982f8cd1b.tar.gz
modules: sysfs - export: taint, coresize, initsize
Recent tools do not want to use /proc to retrieve module information. A few values are currently missing from sysfs to replace the information available in /proc/modules. This adds /sys/module/*/{coresize,initsize,taint} attributes. TAINT_PROPRIETARY_MODULE (P) and TAINT_OOT_MODULE (O) flags are both always shown now, and do no longer exclude each other, also in /proc/modules. Replace the open-coded sysfs attribute initializers with the __ATTR() macro. Add the new attributes to Documentation/ABI. Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'kernel/module.c')
-rw-r--r--kernel/module.c93
1 files changed, 64 insertions, 29 deletions
diff --git a/kernel/module.c b/kernel/module.c
index b02d6335f8a..acf6ed3ebe8 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -842,6 +842,26 @@ out:
return ret;
}
+static size_t module_flags_taint(struct module *mod, char *buf)
+{
+ size_t l = 0;
+
+ if (mod->taints & (1 << TAINT_PROPRIETARY_MODULE))
+ buf[l++] = 'P';
+ if (mod->taints & (1 << TAINT_OOT_MODULE))
+ buf[l++] = 'O';
+ if (mod->taints & (1 << TAINT_FORCED_MODULE))
+ buf[l++] = 'F';
+ if (mod->taints & (1 << TAINT_CRAP))
+ buf[l++] = 'C';
+ /*
+ * TAINT_FORCED_RMMOD: could be added.
+ * TAINT_UNSAFE_SMP, TAINT_MACHINE_CHECK, TAINT_BAD_PAGE don't
+ * apply to modules.
+ */
+ return l;
+}
+
static inline void print_unload_info(struct seq_file *m, struct module *mod)
{
struct module_use *use;
@@ -900,10 +920,8 @@ static ssize_t show_refcnt(struct module_attribute *mattr,
return sprintf(buffer, "%lu\n", module_refcount(mk->mod));
}
-static struct module_attribute refcnt = {
- .attr = { .name = "refcnt", .mode = 0444 },
- .show = show_refcnt,
-};
+static struct module_attribute modinfo_refcnt =
+ __ATTR(refcnt, 0444, show_refcnt, NULL);
void module_put(struct module *module)
{
@@ -963,10 +981,8 @@ static ssize_t show_initstate(struct module_attribute *mattr,
return sprintf(buffer, "%s\n", state);
}
-static struct module_attribute initstate = {
- .attr = { .name = "initstate", .mode = 0444 },
- .show = show_initstate,
-};
+static struct module_attribute modinfo_initstate =
+ __ATTR(initstate, 0444, show_initstate, NULL);
static ssize_t store_uevent(struct module_attribute *mattr,
struct module_kobject *mk,
@@ -979,18 +995,50 @@ static ssize_t store_uevent(struct module_attribute *mattr,
return count;
}
-struct module_attribute module_uevent = {
- .attr = { .name = "uevent", .mode = 0200 },
- .store = store_uevent,
-};
+struct module_attribute module_uevent =
+ __ATTR(uevent, 0200, NULL, store_uevent);
+
+static ssize_t show_coresize(struct module_attribute *mattr,
+ struct module_kobject *mk, char *buffer)
+{
+ return sprintf(buffer, "%u\n", mk->mod->core_size);
+}
+
+static struct module_attribute modinfo_coresize =
+ __ATTR(coresize, 0444, show_coresize, NULL);
+
+static ssize_t show_initsize(struct module_attribute *mattr,
+ struct module_kobject *mk, char *buffer)
+{
+ return sprintf(buffer, "%u\n", mk->mod->init_size);
+}
+
+static struct module_attribute modinfo_initsize =
+ __ATTR(initsize, 0444, show_initsize, NULL);
+
+static ssize_t show_taint(struct module_attribute *mattr,
+ struct module_kobject *mk, char *buffer)
+{
+ size_t l;
+
+ l = module_flags_taint(mk->mod, buffer);
+ buffer[l++] = '\n';
+ return l;
+}
+
+static struct module_attribute modinfo_taint =
+ __ATTR(taint, 0444, show_taint, NULL);
static struct module_attribute *modinfo_attrs[] = {
+ &module_uevent,
&modinfo_version,
&modinfo_srcversion,
- &initstate,
- &module_uevent,
+ &modinfo_initstate,
+ &modinfo_coresize,
+ &modinfo_initsize,
+ &modinfo_taint,
#ifdef CONFIG_MODULE_UNLOAD
- &refcnt,
+ &modinfo_refcnt,
#endif
NULL,
};
@@ -3236,20 +3284,7 @@ static char *module_flags(struct module *mod, char *buf)
mod->state == MODULE_STATE_GOING ||
mod->state == MODULE_STATE_COMING) {
buf[bx++] = '(';
- if (mod->taints & (1 << TAINT_PROPRIETARY_MODULE))
- buf[bx++] = 'P';
- else if (mod->taints & (1 << TAINT_OOT_MODULE))
- buf[bx++] = 'O';
- if (mod->taints & (1 << TAINT_FORCED_MODULE))
- buf[bx++] = 'F';
- if (mod->taints & (1 << TAINT_CRAP))
- buf[bx++] = 'C';
- /*
- * TAINT_FORCED_RMMOD: could be added.
- * TAINT_UNSAFE_SMP, TAINT_MACHINE_CHECK, TAINT_BAD_PAGE don't
- * apply to modules.
- */
-
+ bx += module_flags_taint(mod, buf + bx);
/* Show a - for module-is-being-unloaded */
if (mod->state == MODULE_STATE_GOING)
buf[bx++] = '-';