efi: pstore: move workqueue handling out of efivars

[sfrench/cifs-2.6.git] / drivers / firmware / efi / efi-pstore.c

diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index 785f5e6b3a411f617abe66a690a93b88d6cf685d..0ef086e43090bb14f3789466bedf0af049e3d18d 100644 (file)
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -21,6 +21,7 @@ module_param_named(pstore_disable, efivars_pstore_disable, bool, 0644);
         EFI_VARIABLE_RUNTIME_ACCESS)
 
 static LIST_HEAD(efi_pstore_list);
+static DECLARE_WORK(efivar_work, NULL);
 
 static int efi_pstore_open(struct pstore_info *psi)
 {
@@ -267,8 +268,9 @@ static int efi_pstore_write(struct pstore_record *record)
        ret = efivar_entry_set_safe(efi_name, vendor, PSTORE_EFI_ATTRIBUTES,
                              preemptible(), record->size, record->psi->buf);
 
-       if (record->reason == KMSG_DUMP_OOPS)
-               efivar_run_worker();
+       if (record->reason == KMSG_DUMP_OOPS && try_module_get(THIS_MODULE))
+               if (!schedule_work(&efivar_work))
+                       module_put(THIS_MODULE);
 
        return ret;
 };
@@ -412,6 +414,7 @@ static void efi_pstore_update_entries(struct work_struct *work)
        }
 
        kfree(entry);
+       module_put(THIS_MODULE);
 }
 
 static __init int efivars_pstore_init(void)