/* Network filesystem caching backend to use cache files on a premounted * filesystem * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "internal.h" unsigned cachefiles_debug; module_param_named(debug, cachefiles_debug, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(cachefiles_debug, "CacheFiles debugging mask"); MODULE_DESCRIPTION("Mounted-filesystem based cache"); MODULE_AUTHOR("Red Hat, Inc."); MODULE_LICENSE("GPL"); struct kmem_cache *cachefiles_object_jar; static struct miscdevice cachefiles_dev = { .minor = MISC_DYNAMIC_MINOR, .name = "cachefiles", .fops = &cachefiles_daemon_fops, }; static void cachefiles_object_init_once(void *_object) { struct cachefiles_object *object = _object; memset(object, 0, sizeof(*object)); spin_lock_init(&object->work_lock); } /* * initialise the fs caching module */ static int __init cachefiles_init(void) { int ret; ret = misc_register(&cachefiles_dev); if (ret < 0) goto error_dev; /* create an object jar */ ret = -ENOMEM; cachefiles_object_jar = kmem_cache_create("cachefiles_object_jar", sizeof(struct cachefiles_object), 0, SLAB_HWCACHE_ALIGN, cachefiles_object_init_once); if (!cachefiles_object_jar) { pr_notice("Failed to allocate an object jar\n"); goto error_object_jar; } ret = cachefiles_proc_init(); if (ret < 0) goto error_proc; pr_info("Loaded\n"); return 0; error_proc: kmem_cache_destroy(cachefiles_object_jar); error_object_jar: misc_deregister(&cachefiles_dev); error_dev: pr_err("failed to register: %d\n", ret); return ret; } fs_initcall(cachefiles_init); /* * clean up on module removal */ static void __exit cachefiles_exit(void) { pr_info("Unloading\n"); cachefiles_proc_cleanup(); kmem_cache_destroy(cachefiles_object_jar); misc_deregister(&cachefiles_dev); } module_exit(cachefiles_exit); g/tools/testing/selftests/lib.mk'>
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authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 14:21:56 +0000
committerBjorn Helgaas <bhelgaas@google.com>2017-01-17 08:41:51 -0600
commit4d191b1b63c209e37bf27938ef365244d3c41084 (patch)
treef2ab6cdb65ddacdf2e7c019cd55e353f0c16b400 /tools/testing/selftests/lib.mk
parent51ebfc92b72b4f7dac1ab45683bf56741e454b8c (diff)
PCI/MSI: pci-xgene-msi: Fix CPU hotplug registration handling
The conversion to the new hotplug state machine introduced a regression where a successful hotplug registration would be treated as an error, effectively disabling the MSI driver forever. Fix it by doing the proper check on the return value. Fixes: 9c248f8896e6 ("PCI/xgene-msi: Convert to hotplug state machine") Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Duc Dang <dhdang@apm.com> CC: Thomas Gleixner <tglx@linutronix.de> CC: stable@vger.kernel.org
Diffstat (limited to 'tools/testing/selftests/lib.mk')