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authorLinus Torvalds <torvalds@linux-foundation.org>2019-12-05 12:27:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-05 12:27:16 -0800
commit0f137416247fe92c0779a9ab49e912a7006869e8 (patch)
treed2b5b4961aaa68918fe8ad73d38c2f108938337a /kernel/module.c
parent25cfb0c7de3f14e283a43dcd6de903657f9f98c7 (diff)
parent5d603311615f612320bb77bd2a82553ef1ced5b7 (diff)
Merge tag 'modules-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules updates from Jessica Yu: "Summary of modules changes for the 5.5 merge window: - Refactor include/linux/export.h and remove code duplication between EXPORT_SYMBOL and EXPORT_SYMBOL_NS to make it more readable. The most notable change is that no namespace is represented by an empty string "" rather than NULL. - Fix a module load/unload race where waiter(s) trying to load the same module weren't being woken up when a module finally goes away" * tag 'modules-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: kernel/module.c: wakeup processes in module_wq on module unload moduleparam: fix parameter description mismatch export: avoid code duplication in include/linux/export.h
Diffstat (limited to 'kernel/module.c')
-rw-r--r--kernel/module.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 052a40212b8e..3a486f826224 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1033,6 +1033,8 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user,
strlcpy(last_unloaded_module, mod->name, sizeof(last_unloaded_module));
free_module(mod);
+ /* someone could wait for the module in add_unformed_module() */
+ wake_up_all(&module_wq);
return 0;
out:
mutex_unlock(&module_mutex);
@@ -1400,7 +1402,7 @@ static int verify_namespace_is_imported(const struct load_info *info,
char *imported_namespace;
namespace = kernel_symbol_namespace(sym);
- if (namespace) {
+ if (namespace && namespace[0]) {
imported_namespace = get_modinfo(info, "import_ns");
while (imported_namespace) {
if (strcmp(namespace, imported_namespace) == 0)